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De Bernardi A, Bandini F, Marini E, Tagliabue F, Casucci C, Brunetti G, Vaccari F, Bellotti G, Tabaglio V, Fiorini A, Ilari A, Gnoffo C, Frache A, Taskin E, Rossa UB, Ricardo ESL, Martins AO, Duca D, Puglisi E, Pedretti EF, Vischetti C. Integrated assessment of the chemical, microbiological and ecotoxicological effects of a bio-packaging end-of-life in compost. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175403. [PMID: 39128510 DOI: 10.1016/j.scitotenv.2024.175403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/30/2024] [Accepted: 08/07/2024] [Indexed: 08/13/2024]
Abstract
The present study aimed to i) assess the disintegration of a novel bio-packaging during aerobic composting (2 and 6 % tested concentrations) and evaluate the resulting compost ii) analyse the ecotoxicity of bioplastics residues on earthworms; iii) study the microbial communities during composting and in 'earthworms' gut after their exposure to bioplastic residues; iv) correlate gut microbiota with ecotoxicity analyses; v) evaluate the chemico-physical characterisation of bio-packaging after composting and earthworms' exposure. Both tested concentrations showed disintegration of bio-packaging close to 90 % from the first sampling time, and compost chemical analyses identified its maturity and stability at the end of the process. Ecotoxicological assessments were then conducted on Eisenia fetida regarding fertility, growth, genotoxic damage, and impacts on the gut microbiome. The bioplastic residues did not influence the earthworms' fertility, but DNA damages were measured at the highest bioplastic dose tested. Furthermore bioplastic residues did not significantly affect the bacterial community during composting, but compost treated with 2 % bio-packaging exhibited greater variability in the fungal communities, including Mortierella, Mucor, and Alternaria genera, which can use bioplastics as a carbon source. Moreover, bioplastic residues influenced gut bacterial communities, with Paenibacillus, Bacillus, Rhizobium, Legionella, and Saccharimonadales genera being particularly abundant at 2 % bioplastic concentration. Higher concentrations affected microbial composition by favouring different genera such as Pseudomonas, Ureibacillus, and Streptococcus. For fungal communities, Pestalotiopsis sp. was found predominantly in earthworms exposed to 2 % bioplastic residues and is potentially linked to its role as a microplastics degrader. After composting, Attenuated Total Reflection analysis on bioplastic residues displayed evidence of ageing with the formation of hydroxyl groups and amidic groups after earthworm exposure.
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Affiliation(s)
- Arianna De Bernardi
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Francesca Bandini
- Department for Sustainable Food Process, Faculty of Agriculture, Food and Environmental Sciences, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Enrica Marini
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Francesca Tagliabue
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Cristiano Casucci
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Gianluca Brunetti
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy; Future Industries Institute, University of South Australia, Mawson Lakes Boulevard, South Australia, SA 5095, Australia.
| | - Filippo Vaccari
- Department for Sustainable Food Process, Faculty of Agriculture, Food and Environmental Sciences, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Gabriele Bellotti
- Department for Sustainable Food Process, Faculty of Agriculture, Food and Environmental Sciences, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Vincenzo Tabaglio
- Department of Sustainable Crop Production, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Andrea Fiorini
- Department of Sustainable Crop Production, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Alessio Ilari
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Chiara Gnoffo
- Department of Applied Science and Technology, Politecnico di Torino, V.le Teresa Michel, 5, 15121 Alessandria, Italy.
| | - Alberto Frache
- Department of Applied Science and Technology, Politecnico di Torino, V.le Teresa Michel, 5, 15121 Alessandria, Italy.
| | - Eren Taskin
- Department for Sustainable Food Process, Faculty of Agriculture, Food and Environmental Sciences, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy; Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano-Bozen, Piazza Università, 5, 39100 Bolzano-Bozen, Italy.
| | - Uberson Boaretto Rossa
- Department of Agricultural Sciences, Instituto Federal de Educação, Ciência e Tecnologia Catarinense, BR 270, Km 21, Araquari, Santa Catarina 89245-000, Brazil.
| | - Elisângela Silva Lopes Ricardo
- Department of Agricultural Sciences, Instituto Federal de Educação, Ciência e Tecnologia Catarinense, BR 270, Km 21, Araquari, Santa Catarina 89245-000, Brazil.
| | | | - Daniele Duca
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Edoardo Puglisi
- Department for Sustainable Food Process, Faculty of Agriculture, Food and Environmental Sciences, Catholic University of Sacred Heart, Via Emilia Parmense 84, 29122 Piacenza, Italy.
| | - Ester Foppa Pedretti
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Costantino Vischetti
- Department of Agricultural, Food and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
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Yeo JCC, Muiruri JK, Fei X, Wang T, Zhang X, Xiao Y, Thitsartarn W, Tanoto H, He C, Li Z. Innovative biomaterials for food packaging: Unlocking the potential of polyhydroxyalkanoate (PHA) biopolymers. BIOMATERIALS ADVANCES 2024; 163:213929. [PMID: 39024863 DOI: 10.1016/j.bioadv.2024.213929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 07/20/2024]
Abstract
Polyhydroxyalkanoate (PHA) biopolyesters show a good balance between sustainability and performance, making them a competitive alternative to conventional plastics for ecofriendly food packaging. With an emphasis on developments over the last decade (2014-2024), this review examines the revolutionary potential of PHAs as a sustainable food packaging material option. It also delves into the current state of commercial development, competitiveness, and the carbon footprint associated with PHA-based products. First, a critical examination of the challenges experienced by PHAs in terms of food packaging requirements is undertaken, followed by an assessment of contemporary strategies addressing permeability, mechanical properties, and processing considerations. The various PHA packaging end-of-life options, including a comprehensive overview of the environmental impact and potential solutions will also be discussed. Finally, conclusions and future perspectives are elucidated with a view of prospecting PHAs as future green materials, with a blend of performance and sustainability of food packaging solutions.
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Affiliation(s)
- Jayven Chee Chuan Yeo
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore.
| | - Joseph Kinyanjui Muiruri
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE(2)), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore
| | - Xunchang Fei
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Tong Wang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Xikui Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Yihang Xiao
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Warintorn Thitsartarn
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Hendrix Tanoto
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Chaobin He
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore; Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Republic of Singapore.
| | - Zibiao Li
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore; Institute of Sustainability for Chemicals, Energy and Environment (ISCE(2)), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore; Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Republic of Singapore.
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3
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Lara-Topete GO, Castanier-Rivas JD, Bahena-Osorio MF, Krause S, Larsen JR, Loge FJ, Mahlknecht J, Gradilla-Hernández MS, González-López ME. Compounding one problem with another? A look at biodegradable microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173735. [PMID: 38857803 DOI: 10.1016/j.scitotenv.2024.173735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/29/2024] [Accepted: 06/01/2024] [Indexed: 06/12/2024]
Abstract
Environmental concerns about microplastics (MPs) have motivated research of their sources, occurrence, and fate in aquatic and soil ecosystems. To mitigate the environmental impact of MPs, biodegradable plastics are designed to naturally decompose, thus reducing the amount of environmental plastic contamination. However, the environmental fate of biodegradable plastics and the products of their incomplete biodegradation, especially micro-biodegradable plastics (MBPs), remains largely unexplored. This comprehensive review aims to assess the risks of unintended consequences associated with the introduction of biodegradable plastics into the environment, namely, whether the incomplete mineralization of biodegradable plastics could enhance the risk of MBPs formation and thus, exacerbate the problem of their environmental dispersion, representing a potentially additional environmental hazard due to their presumed ecotoxicity. Initial evidence points towards the potential for incomplete mineralization of biodegradable plastics under both controlled and uncontrolled conditions. Rapid degradation of PLA in thermophilic industrial composting contrasts with the degradation below 50 % of other biodegradables, suggesting MBPs released into the environment through compost. Moreover, degradation rates of <60 % in anaerobic digestion for polymers other than PLA and PHAs suggest a heightened risk of MBPs in digestate, risking their spread into soil and water. This could increase MBPs and adsorbed pollutants' mobilization. The exact behavior and impacts of additive leachates from faster-degrading plastics remain largely unknown. Thus, assessing the environmental fate and impacts of MBPs-laden by-products like compost or digestate is crucial. Moreover, the ecotoxicological consequences of shifting from conventional plastics to biodegradable ones are highly uncertain, as there is insufficient evidence to claim that MBPs have a milder effect on ecosystem health. Indeed, literature shows that the impact may be worse depending on the exposed species, polymer type, and the ecosystem complexity.
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Affiliation(s)
- Gary Ossmar Lara-Topete
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Laboratorio de Sostenibilidad y Cambio Climático, Av. General Ramón Corona 2514, Zapopan, Jalisco 45138, Mexico
| | - Juan Daniel Castanier-Rivas
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Laboratorio de Sostenibilidad y Cambio Climático, Av. General Ramón Corona 2514, Zapopan, Jalisco 45138, Mexico
| | - María Fernanda Bahena-Osorio
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Laboratorio de Sostenibilidad y Cambio Climático, Av. General Ramón Corona 2514, Zapopan, Jalisco 45138, Mexico
| | - Stefan Krause
- School of Geography, Earth and Environmental Sciences, University of Birmingham, United Kingdom
| | - Joshua R Larsen
- School of Geography, Earth and Environmental Sciences, University of Birmingham, United Kingdom
| | - Frank J Loge
- Department of Civil & Environmental Engineering, University of California - Davis, Davis, CA, United States of America; Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey 64849, Nuevo León, Mexico
| | - Jürgen Mahlknecht
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Campus Monterrey, Monterrey 64849, Nuevo León, Mexico
| | - Misael Sebastián Gradilla-Hernández
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Laboratorio de Sostenibilidad y Cambio Climático, Av. General Ramón Corona 2514, Zapopan, Jalisco 45138, Mexico
| | - Martín Esteban González-López
- Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Laboratorio de Sostenibilidad y Cambio Climático, Av. General Ramón Corona 2514, Zapopan, Jalisco 45138, Mexico.
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4
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Amato A, Esposito R, Viel T, Glaviano F, Cocca M, Manfra L, Libralato G, Somma E, Lorenti M, Costantini M, Zupo V. Effects of biodegradable microplastics on the crustacean isopod Idotea balthica basteri Audouin, 1826. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024:124897. [PMID: 39243934 DOI: 10.1016/j.envpol.2024.124897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/09/2024]
Abstract
Plastic pollution is a notable environmental issue, being plastic widespread and characterized by long lifetime. Serious environmental problems are caused by the improper management of plastic end-of-life. In fact, plastic litter is currently detected in any environment. Biodegradable Polymers (BPs) are promising materials if correctly applied and managed at their end of life, to minimize environmental problems. However, poor data on the fate and toxicity of BPs on marine organisms still limit their applicability. In this work we tested the effects of five biodegradable polymers (polybutylene succinate, PBS; polybutylene succinate-co-butylene adipate, PBSA; polycaprolactone, PCL; poly (3-hydroxybutyrates, PHB; polylactic acid, PLA) widely used for several purposes. Adult individuals of the isopod Idotea balthica basteri were fed on these polymers for twenty-seven days by adding biodegradable microplastic polymers (BMPs) to formulated feeds at two concentrations, viz. 0.84 and 8.4 g/kg feed. The plastic fragments affected the mortality rates of the isopods, as well as the expression levels of eighteen genes (tested by Real Time qPCR) involved in stress response and detoxification processes. Our findings confirmed that I. balthica basteri is a convenient model organism to study the response to environmental pollution and emerging contaminants in the aquatic environment, and highlighted the need for the correct use of BMPs.
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Affiliation(s)
- Amalia Amato
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy; Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Roberta Esposito
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy
| | - Thomas Viel
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy
| | - Francesca Glaviano
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine Ecology, Ischia Marine Centre, 80077 Ischia, Italy
| | - Mariacristina Cocca
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, Napoli, Italy
| | - Loredana Manfra
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy; Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 48, 00144, Rome, Italy
| | - Giovanni Libralato
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy; Department of Biology, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, Via Cinthia 21, 80126 Naples, Italy
| | - Emanuele Somma
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine Ecology, Ischia Marine Centre, 80077 Ischia, Italy
| | - Maurizio Lorenti
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine Ecology, Ischia Marine Centre, 80077 Ischia, Italy
| | - Maria Costantini
- Stazione Zoologica Anton Dohrn, Department of Ecosustainable Marine Biotechnology, Via Ammiraglio Ferdinando Acton 55, 80133 Naples, Italy.
| | - Valerio Zupo
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine Ecology, Ischia Marine Centre, 80077 Ischia, Italy
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Zhang D, Bu N, Zhou L, Lin L, Wen Y, Chen X, Huang L, Lin H, Mu R, Wang L, Pang J. Quercetin-loaded melanin nanoparticle mediated konjac glucomannan/polycaprolactone bilayer film with dual-mode synergistic bactericidal activity for food packaging. Int J Biol Macromol 2024; 276:133982. [PMID: 39029854 DOI: 10.1016/j.ijbiomac.2024.133982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/21/2024]
Abstract
It is still difficult for a single antibacterial modality to realize satisfactory management of bacterial breeding in food preservation. To solve this problem, we developed a photothermal-derived dual-mode synergistic bactericidal konjac glucomannan (KGM)/polycaprolactone (PCL) bilayer film incorporated with quercetin-loaded melanin-like nanoparticles (Q@MNPs). The results showed that the mechanical properties (TS: 29.8 MPa, EAB: 43.1 %), UV shielding properties, and water resistance (WCA: 124.1°, WVP: 3.92 g mm/m2 day kPa) of KGM-Q@MNPs/PCL bilayer films were significantly improved. More importantly, KGM-Q@MNPs/PCL bilayer film presented outstanding photothermal inversion and controlled release behavior of Q triggered by near infrared (NIR) radiation, thus contributing to excellent dual-mode synergistic antibacterial properties against E. coli and S. aureus. Meanwhile, the KGM-Q@MNPs/PCL bilayer film possessed good biocompatibility and low toxicity. As a proof-of-concept application, we further verified the significant value of film for the preservation of cherry tomatoes. Since KGM-Q@MNPs/PCL bilayer film showed excellent biodegradability, this work will aid the development of sustainable antibacterial food packaging materials.
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Affiliation(s)
- Di Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Nitong Bu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Lizhen Zhou
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lihong Lin
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yifan Wen
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xianrui Chen
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Liying Huang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Huanglong Lin
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ruojun Mu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Lin Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Poosarla VG, Bisoi S, Siripurapu A, Rathod BG, Ramadoss A, Kilaparthi S, Shivshetty N, Rajagopalan G. Extension of shelf life of tomato (Solanum lycopersicum L.) by using a coating of polyhydroxybutyrate-carboxymethyl cellulose-pectin-thymol conjugate. J Food Sci 2024. [PMID: 39175180 DOI: 10.1111/1750-3841.17312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/27/2024] [Accepted: 07/30/2024] [Indexed: 08/24/2024]
Abstract
This study targets explicitly finding an alternative to petroleum-based plastic films that burden the environment, which is a high priority. Hence, polymeric films were prepared with carboxymethyl cellulose (CMC) (4%), pectin (2%), and polyhydroxybutyrate (PHB) (0.5%) with different concentrations of thymol (0.3%, 0.9%, 1.8%, 3%, and 5%) and glycerol as a plasticizer by solution casting technique. The prepared films were tested for mechanical, optical, antimicrobial, and antioxidant properties. Film F5 (CMC + P + PHB + 0.9%thymol) showed an excellent tensile strength of 15 MPa, Young's modulus of 395 MPa, antioxidant activity (AA) (92%), rapid soil biodegradation (21 days), and strong antimicrobial activity against bacterial and fungal cultures such as Klebsiella pneumoniae, Staphylococcus aureus, Escherichia coli, Aspergillus niger, and Aspergillus flavus. The thymol content increase in films F6 (1.8%), F7 (3%), and F8 (5%) displayed a decrease in mechanical properties due to thymol's hydrophobicity. For shelf life studies on tomatoes, F2, a film without thymol (poor antimicrobial and antioxidant activities), F5 (film with superior mechanical, optical, antimicrobial, and antioxidant properties), and F7 (film with low mechanical properties) were selected. Film F5 coatings on tomato fruit enhanced the shelf life of up to 15 days by preventing weight loss, preserving firmness, and delaying changes in biochemical constituents like lycopene, phenols, and AA. Based on the mechanical, optical, antimicrobial, antioxidant, and shelf life results, the film F5 is suitable for active food packaging and preservation. PRACTICAL APPLICATION: The developed active biodegradable composite can be utilized as a coating to extend the shelf life of fruits and vegetables. These coatings are easy to produce and apply, offering a sustainable solution to reduce food waste. On an industrial scale, they can be applied to food products, ensuring longer freshness without any technical challenges.
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Affiliation(s)
- Venkata Giridhar Poosarla
- Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Suchitra Bisoi
- Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Aruna Siripurapu
- Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Baliram Gurunath Rathod
- Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Aparna Ramadoss
- Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Suresh Kilaparthi
- Department of Mechanical Engineering, GITAM School of Technology, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Nagaveni Shivshetty
- Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India
| | - Gobinath Rajagopalan
- Industrial Biotechnology Laboratory, Faculty of Life Sciences and Biotechnology, South Asian University, New Delhi, Delhi, India
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Jha S, Akula B, Enyioma H, Novak M, Amin V, Liang H. Biodegradable Biobased Polymers: A Review of the State of the Art, Challenges, and Future Directions. Polymers (Basel) 2024; 16:2262. [PMID: 39204482 PMCID: PMC11359911 DOI: 10.3390/polym16162262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/24/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024] Open
Abstract
Biodegradable biobased polymers derived from biomass (such as plant, animal, marine, or forestry material) show promise in replacing conventional petrochemical polymers. Research and development have been conducted for decades on potential biodegradable biobased polymers such as polylactic acid (PLA), polyhydroxyalkanoates (PHAs), and succinate polymers. These materials have been evaluated for practicality, cost, and production capabilities as limiting factors in commercialization; however, challenges, such as the environmental limitations on the biodegradation rates for biodegradable biobased polymer, need to be addressed. This review provides a history and overview of the current development in the synthesis process and properties of biodegradable biobased polymers, along with a techno-commercial analysis and discussion on the environmental impacts of biodegradable biobased polymers. Specifically, the techno-commercial analysis focuses on the commercial potential, financial assessment, and life-cycle assessment of these materials, as well as government initiatives to facilitate the transition towards biodegradable biobased polymers. Lastly, the environmental assessment focuses on the current challenges with biodegradation and methods of improving the recycling process and reusability of biodegradable biobased polymers.
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Affiliation(s)
- Swarn Jha
- J. Mike Walker ‘66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
| | - Bhargav Akula
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
| | - Hannah Enyioma
- Department of Electrical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
| | - Megan Novak
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
| | - Vansh Amin
- Department of Electrical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
| | - Hong Liang
- J. Mike Walker ‘66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, USA
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Lavagnolo MC, Poli V, Zampini AM, Grossule V. Biodegradability of bioplastics in different aquatic environments: A systematic review. J Environ Sci (China) 2024; 142:169-181. [PMID: 38527882 DOI: 10.1016/j.jes.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/08/2023] [Accepted: 06/08/2023] [Indexed: 03/27/2024]
Abstract
Bioplastics were first introduced as environmentally friendly materials, with properties similar to those of conventional plastics. A bioplastic is defined as biodegradable if it can be decomposed into carbon dioxide under aerobic degradation, or methane and CO2 under anaerobic conditions, inorganic compounds, and new cellular biomass, by the action of naturally occurring microorganisms. This definition however does not provide any information on the environmental conditions, timescale and extent at which decomposition processes should occur. With regard to the aquatic environment, recognized standards have been established to assess the ability of plastics to undergo biodegradation; however, these standards fail to provide clear targets to be met to allow labelling of a bioplastic as biodegradable. Moreover, these standards grant the user an extensive leeway in the choice of process parameters. For these reasons, the comparison of results deriving from different studies is challenging. The authors analysed and discussed the degree of biodegradability of a series of biodegradable bioplastics in aquatic environments (both fresh and salt water) using the results obtained in the laboratory and from on-site testing in the context of different research studies. Biochemical Oxygen Demand (BOD), CO2 evolution, surface erosion and weight loss were the main parameters used by researchers to describe the percentage of biodegradation. The results showed a large variability both in weight loss and BOD, even when evaluating the same type of bioplastics. This confirms the need for a reference range of values to be established with regard to parameters applied in defining the biodegradability of bioplastics.
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Affiliation(s)
- Maria Cristina Lavagnolo
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy.
| | - Valentina Poli
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy
| | - Anna Maria Zampini
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy
| | - Valentina Grossule
- Department of Civil, Environmental and Architectural Engineering - Laboratory of Environmental Engineering, University of Padova, Lungargine Rovetta 8, Padova 35100, Italy
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Shin N, Oh J, Kim S, Lee Y, Shin Y, Choi S, Bhatia SK, Yang YH. Dual Application of p-Nitrophenol Alkanoate-Based Assay for Soil Selection and Screening of Microbial Strains for Bioplastic Degradation. J Microbiol Biotechnol 2024; 34:1530-1543. [PMID: 38973389 PMCID: PMC11294652 DOI: 10.4014/jmb.2403.03013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/29/2024] [Accepted: 05/17/2024] [Indexed: 07/09/2024]
Abstract
With an increase in the commercialization of bioplastics, the importance of screening for plastic-degrading strains and microbes has emerged. Conventional methods for screening such strains are time-consuming and labor-intensive. Therefore, we suggest a method for quickly and effectively screening plastic-degrading microbial strains through dual esterase assays for soil and isolated strains, using p-nitrophenyl alkanoates as substrates. To select microbe-abundant soil, the total amount of phospholipid fatty acids (PLFAs) included in each soil sample was analyzed, and esterase assays were performed for each soil sample to compare the esterase activity of each soil. In addition, by analyzing the correlation coefficients and sensitivity between the amount of PLFAs and the degree of esterase activity according to the substrate, it was confirmed that substrate pNP-C2 is the most useful index for soil containing several microbes having esterase activity. In addition, esterase assays of the isolated strains allowed us to select the most active strain as the degrading strain, and 16S rRNA results confirmed that it was Bacillus sp. N04 showed the highest degradation activity for polybutylene succinate (PBS) as measured in liquid culture for 7 days, with a degradation yield of 99%. Furthermore, Bacillus sp. N04 showed degradation activity against various bioplastics. We propose the dual application of p-nitrophenyl alkanoates as an efficient method to first select the appropriate soil and then to screen for plastic-degrading strains in it, and conclude that pNP-C2 in particular, is a useful indicator.
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Affiliation(s)
- Nara Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jinok Oh
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Suwon Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yeda Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yuni Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Suhye Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
- Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
- Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
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10
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Prabhaharan D, Park H, Choi O, Abraham A, Sang BI. Enhancing cellulose acetate biodegradability in cigarette filters: an in-depth analysis of thermal alkaline pretreatment, microbial dynamics, and breakdown pathway prediction. Microb Cell Fact 2024; 23:199. [PMID: 39026314 PMCID: PMC11256436 DOI: 10.1186/s12934-024-02476-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/08/2024] [Indexed: 07/20/2024] Open
Abstract
BACKGROUND The demand for bioplastics has increased exponentially as they have emerged as alternatives to petrochemical plastics. However, there is a substantial lack of knowledge regarding bioplastic degradation. This study developed a novel pretreatment method to improve the accessibility of a bioplastic substrate for biodegradation. In this study, cellulose acetate, a bioplastic found in the world's most littered waste, e.g. cigarette filters, was selected as a potential substrate. Before anaerobic digestion, three thermal alkaline pretreatments: TA 30 °C, TA 90 °C, and TA 121 °C, were used to evaluate their effects on the chemical alterations of cellulose acetate. RESULT The ester groups in cellulose acetate were significantly reduced by the TA 30 °C pretreatment, as seen by a decrease in C = O stretching vibrations and shortening of C - O stretches (1,270 ∼ 1,210 cm- 1), indicating effective removal of acetyl groups. This pretreatment significantly enhanced cellulose acetate biodegradability to a maximum of 91%, surpassing the previously reported cellulose acetate degradation. Methane production increased to 695.0 ± 4 mL/g of volatile solid after TA 30 °C pretreatment, indicating enhanced cellulose acetate accessibility to microorganisms, which resulted in superior biogas production compared to the control (306.0 ± 10 mL/g of volatile solid). Diverse microbes in the anaerobic digestion system included hydrolytic (AB240379_g, Acetomicrobium, FN436103_g, etc.), fermentative, and volatile fatty acids degrading bacteria (JF417922_g, AB274492_g, Coprothermobacter, etc.), with Methanobacterium and Methanothermobacter being the sole hydrogenotrophic methanogens in the anaerobic digestion system. Additionally, an attempt to predict the pathway for the effective degradation of cellulose acetate from the microbial community in different pretreatment conditions. CONCLUSIONS To the best of our knowledge, this is the first study to estimate the maximum cellulose acetate degradation rate, with a simple and cost-effective pretreatment procedure. This approach holds promise for mitigating the environmental impact of cellulose acetate of cigarette filters and presents a sustainable and economically viable waste management strategy.
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Affiliation(s)
- Darsha Prabhaharan
- Department of Chemical Engineering, Hanyang University, 222 Wangsimniro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Hyojung Park
- Center of Convergence Bioceramic Materials, Korea Institute of Ceramic Engineering & Technology, 202, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, Republic of Korea
| | - Okkyoung Choi
- Eco Lab Center, SK Ecoplant, 51, Jong-ro, Jongno-gu, Seoul, Republic of Korea
| | - Amith Abraham
- Department of Chemical Engineering, Hanyang University, 222 Wangsimniro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Byoung-In Sang
- Department of Chemical Engineering, Hanyang University, 222 Wangsimniro, Seongdong-gu, Seoul, 04763, Republic of Korea.
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11
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Mogany T, Bhola V, Bux F. Algal-based bioplastics: global trends in applied research, technologies, and commercialization. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38022-38044. [PMID: 38787471 PMCID: PMC11189328 DOI: 10.1007/s11356-024-33644-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
The excessive global demand for plastic materials has resulted in severe plastic waste pollution. Conventional plastics derived from non-renewable fossil fuels are non-biodegradable, leading to significant environmental problems. Algal-based bioplastics represent a more viable, renewable, and sustainable alternative to conventional plastics. They have identical properties and characteristics as conventional plastics while being naturally biodegradable. The potential of the algal biomass value chain has already been well-established by researchers. Here, we review the novel insights on research, technology, and commercialization trends of algal-based bioplastics, encompassing macroalgae and green microalgae/cyanobacteria. Data showed that within the last decade, there has been substantial interest in utilizing microalgae for biopolymer production, with more focus on using cyanobacterial species compared to green algae. Moreover, most of the research conducted has largely focused on the production of PHA or its co-polymers. Since 2011, there have been a total of 55 patents published related to algal-based bioplastics production. To date, ~ 81 entities worldwide (commercial and private businesses) produce bioplastics from algae. Overall results of this study emphasized that even with the economic and social challenges, algae possess a substantial potential for the sustainable development of bioplastics while also addressing the UN's SDGs.
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Affiliation(s)
- Trisha Mogany
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, 4001, South Africa
| | - Virthie Bhola
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, 4001, South Africa
| | - Faizal Bux
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban, 4001, South Africa.
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12
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El Feky AR, Ismaiel M, Yılmaz M, Madkour FM, El Nemr A, Ibrahim HAH. Biodegradable plastic formulated from chitosan of Aristeus antennatus shells with castor oil as a plasticizer agent and starch as a filling substrate. Sci Rep 2024; 14:11161. [PMID: 38750054 PMCID: PMC11096362 DOI: 10.1038/s41598-024-61377-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 05/06/2024] [Indexed: 05/18/2024] Open
Abstract
Biodegradable plastics are those subjected easily to a degradation process, in which they can be decomposed after disposal in the environment through microbial activity. 30 bioplastic film formulations based only on chitosan film were used in the current investigation as a positive control together with chitosan film recovered from chitin-waste of locally obtained Aristeus antennatus. Additionally, castor oil was used as a plasticizer. While the yield of chitosan was 18% with 7.65% moisture content and 32.27% ash in the shells, the isolated chitin had a degree of deacetylation (DD) of 86%. The synthesized bioplastic films were characterized via numerous criteria. Firstly, the swelling capacity of these biofilms recorded relatively high percentages compared to polypropylene as synthetic plastic. Noticeably, the FTIR profiles, besides DSC, TGA, and XRD, confirmed the acceptable characteristics of these biofilms. In addition, their SEM illustrated the homogeneity and continuity with a few straps of the chitosan film and showed the homogeneous mixes of chitosan and castor oil with 5 and 20%. Moreover, data detected the antibacterial activity of different bioplastic formulas against some common bacterial pathogens (Enterococcus feacalis, Kelbsiella pnumina, Bacillus subtilis, and Pseudomonas aeruginosa). Amazingly, our bioplastic films have conducted potent antimicrobial activities. So, they may be promising in such a direction. Further, the biodegradability efficacy of bioplastic films formed was proved in numerous environments for several weeks of incubation. However, all bioplastic films decreased in their weights and changed in their colors, while polypropylene, was very constant all the time. The current findings suggest that our biofilms may be promising for many applications, especially in the field of food package protecting the food, and preventing microbial contamination, consequently, it may help in extending the shelf life of products.
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Affiliation(s)
- Ayaat R El Feky
- Oceanographic Sciences Department, Faculty of Science, Port Said University, Port Fuad, Egypt
| | - Mohammed Ismaiel
- Oceanographic Sciences Department, Faculty of Science, Port Said University, Port Fuad, Egypt
| | - Murat Yılmaz
- Bahçe Vocational School, Department of Chemistry and Chemical Processing Technologies, Osmaniye Korkut Ata University, Osmaniye, 80000, Turkey
| | - Fedekar M Madkour
- Oceanographic Sciences Department, Faculty of Science, Port Said University, Port Fuad, Egypt
| | - Ahmed El Nemr
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt.
| | - Hassan A H Ibrahim
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt
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13
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Talekar S, Barrow CJ, Nguyen HC, Zolfagharian A, Zare S, Farjana SH, Macreadie PI, Ashraf M, Trevathan-Tackett SM. Using waste biomass to produce 3D-printed artificial biodegradable structures for coastal ecosystem restoration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171728. [PMID: 38492597 DOI: 10.1016/j.scitotenv.2024.171728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/02/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
The loss of ecosystem functions and services caused by rapidly declining coastal marine ecosystems, including corals and bivalve reefs and wetlands, around the world has sparked significant interest in interdisciplinary methods to restore these ecologically and socially important ecosystems. In recent years, 3D-printed artificial biodegradable structures that mimic natural life stages or habitat have emerged as a promising method for coastal marine restoration. The effectiveness of this method relies on the availability of low-cost biodegradable printing polymers and the development of 3D-printed biomimetic structures that efficiently support the growth of plant and sessile animal species without harming the surrounding ecosystem. In this context, we present the potential and pathway for utilizing low-cost biodegradable biopolymers from waste biomass as printing materials to fabricate 3D-printed biodegradable artificial structures for restoring coastal marine ecosystems. Various waste biomass sources can be used to produce inexpensive biopolymers, particularly those with the higher mechanical rigidity required for 3D-printed artificial structures intended to restore marine ecosystems. Advancements in 3D printing methods, as well as biopolymer modifications and blending to address challenges like biopolymer solubility, rheology, chemical composition, crystallinity, plasticity, and heat stability, have enabled the fabrication of robust structures. The ability of 3D-printed structures to support species colonization and protection was found to be greatly influenced by their biopolymer type, surface topography, structure design, and complexity. Considering limited studies on biodegradability and the effect of biodegradation products on marine ecosystems, we highlight the need for investigating the biodegradability of biopolymers in marine conditions as well as the ecotoxicity of the degraded products. Finally, we present the challenges, considerations, and future perspectives for designing tunable biomimetic 3D-printed artificial biodegradable structures from waste biomass biopolymers for large-scale coastal marine restoration.
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Affiliation(s)
- Sachin Talekar
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing, Deakin University, Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Colin J Barrow
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing, Deakin University, Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, Victoria 3216, Australia.
| | - Hoang Chinh Nguyen
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Ali Zolfagharian
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Shahab Zare
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | | | - Peter I Macreadie
- Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences, Deakin University, Burwood, Victoria 3125, Australia
| | - Mahmud Ashraf
- School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - Stacey M Trevathan-Tackett
- Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences, Deakin University, Burwood, Victoria 3125, Australia
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14
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Piyathilake U, Lin C, Bolan N, Bundschuh J, Rinklebe J, Herath I. Exploring the hidden environmental pollution of microplastics derived from bioplastics: A review. CHEMOSPHERE 2024; 355:141773. [PMID: 38548076 DOI: 10.1016/j.chemosphere.2024.141773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/18/2024]
Abstract
Bioplastics might be an ecofriendly alternative to traditional plastics. However, recent studies have emphasized that even bioplastics can end up becoming micro- and nano-plastics due to their degradation under ambient environmental conditions. Hence, there is an urgent need to assess the hidden environmental pollution caused by bioplastics. However, little is known about the evolutionary trends of bibliographic data, degradation pathways, formation, and toxicity of micro- and nano-scaled bioplastics originating from biodegradable polymers such as polylactic acid, polyhydroxyalkanoates, and starch-based plastics. Therefore, the prime objective of the current review was to investigate evolutionary trends and the latest advancements in the field of micro-bioplastic pollution. Additionally, it aims to confront the limitations of existing research on microplastic pollution derived from the degradation of bioplastic wastes, and to understand what is needed in future research. The literature survey revealed that research focusing on micro- and nano-bioplastics has begun since 2012. This review identifies novel insights into microbioplastics formation through diverse degradation pathways, including photo-oxidation, ozone-induced degradation, mechanochemical degradation, biodegradation, thermal, and catalytic degradation. Critical research gaps are identified, including defining optimal environmental conditions for complete degradation of diverse bioplastics, exploring micro- and nano-bioplastics formation in natural environments, investigating the global occurrence and distribution of these particles in diverse ecosystems, assessing toxic substances released during bioplastics degradation, and bridging the disparity between laboratory studies and real-world applications. By identifying new trends and knowledge gaps, this study lays the groundwork for future investigations and sustainable solutions in the realm of sustainable management of bioplastic wastes.
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Affiliation(s)
- Udara Piyathilake
- Environmental Science Division, National Institute of Fundamental Studies (NIFS), Kandy, 2000, Sri Lanka
| | - Chuxia Lin
- Centre for Regional and Rural Futures, Faculty of Science, Engineering and Built Environment, Deakin University, Burwood, VIC, 3125, Australia
| | - Nanthi Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia, 6009, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Jochen Bundschuh
- School of Engineering, Faculty of Health, Engineering and Sciences, The University of Southern Queensland, West Street, 4350, QLD, Australia
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany
| | - Indika Herath
- Centre for Regional and Rural Futures, Faculty of Science, Engineering and Built Environment, Deakin University, Waurn Ponds, VIC, 3216, Australia.
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15
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Peprah F, Tarantola GE, Plaman AS, Vu EL, Huynh AB, Durr CB. Synthesis and catalytic activity of single-site group V alkoxide complexes for the ring-opening polymerization of ε-caprolactone. Dalton Trans 2024; 53:7073-7080. [PMID: 38567482 DOI: 10.1039/d4dt00422a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The synthesis, characterization, and ring-opening polymerization (ROP) activity of a family of niobium and tantalum alkoxide catalysts was studied. The final catalysts are made in a two-step synthesis, first by reacting the desired homoleptic metal ethoxide with a phenolketoimine ligand to form a series of synthetic intermediates, followed by reaction with catechol to produce a catalytic platform with a single ethoxide initiator. By using two separate ligands, the electronic properties of the catalyst can be tuned, and the molecular weight of the polymer can be increased. It was found that synthetic intermediates adopted a mer geometry both in solution and in the solid state. This mer geometry was retained for the final catechol derivatives, however in one case, where catechol was substituted for 3-methoxycatechol, the molecule adopted a highly distorted fac geometry. Catalytic ROP activity of the synthetic intermediates and final catechol derivatives with ε-caprolactone was studied through a kinetic analysis. In all seven cases studied the reactions proceeded through the expected coordination-insertion mechanism, following pseudo first-order kinetics and increasing in Mn linearly vs. conversion. The single-initiator catechol derivatives increased the Mn by three times compared to that of the three-initiator synthetic intermediates with little decrease in the overall reaction rate. Both the nature of the ligand and metal were found to impact the rate of reaction in these systems. By switching from an electron donating ligand to an electron withdrawing ligand, the rate was found to nearly double. Tantalum species were faster than their niobium counterparts by ∼3 times in the synthetic intermediates and ∼1.5 times in the catechol derivatives. This observed periodicity supports recent literature findings in this area.
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Affiliation(s)
- Frank Peprah
- Department of Chemistry, Amherst College, 25 East Drive, Amherst, Massachusetts 01002, USA.
| | - Grace E Tarantola
- Department of Chemistry, Amherst College, 25 East Drive, Amherst, Massachusetts 01002, USA.
| | - Alyson S Plaman
- Department of Chemistry, Amherst College, 25 East Drive, Amherst, Massachusetts 01002, USA.
| | - Emily L Vu
- Department of Chemistry, Amherst College, 25 East Drive, Amherst, Massachusetts 01002, USA.
| | - Alyssa B Huynh
- Department of Chemistry, Amherst College, 25 East Drive, Amherst, Massachusetts 01002, USA.
| | - Christopher B Durr
- Department of Chemistry, Amherst College, 25 East Drive, Amherst, Massachusetts 01002, USA.
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16
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Limonta G, Panti C, Fossi MC, Nardi F, Baini M. Exposure to virgin and marine incubated microparticles of biodegradable and conventional polymers modulates the hepatopancreas transcriptome of Mytilus galloprovincialis. JOURNAL OF HAZARDOUS MATERIALS 2024; 468:133819. [PMID: 38402680 DOI: 10.1016/j.jhazmat.2024.133819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/02/2024] [Accepted: 02/15/2024] [Indexed: 02/27/2024]
Abstract
Biodegradable polymers have been proposed as an alternative to conventional plastics to mitigate the impact of marine litter, but the research investigating their toxicity is still in its infancy. This study evaluates the potential ecotoxicological effects of both virgin and marine-incubated microparticles (MPs), at environmentally relevant concentration (0.1 mg/l), made of different biodegradable polymers (Polycaprolactone, Mater-Bi, cellulose) and conventional polymers (Polyethylene) on Mytilus galloprovincialis by using transcriptomics. This approach is increasingly being used to assess the effects of pollutants on organisms, obtaining data on numerous biological pathways simultaneously. Whole hepatopancreas de novo transcriptome sequencing was performed, individuating 972 genes differentially expressed across experimental groups compared to the control. Through the comparative transcriptomic profiling emerges that the preponderant effect is attributable to the marine incubation of MPs, especially for incubated polycaprolactone (731 DEGs). Mater-Bi and cellulose alter the smallest number of genes and biological processes in the mussel hepatopancreas. All microparticles, regardless of their polymeric composition, dysregulated innate immunity, and fatty acid metabolism biological processes. These findings highlight the necessity of considering the interactions of MPs with the environmental factors in the marine ecosystem when performing ecotoxicological evaluations. The results obtained contribute to fill current knowledge gaps regarding the potential environmental impacts of biodegradable polymers.
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Affiliation(s)
- Giacomo Limonta
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via P.A. Mattioli, 4, Siena, Italy; National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Cristina Panti
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via P.A. Mattioli, 4, Siena, Italy; National Biodiversity Future Center (NBFC), Palermo, Italy.
| | - Maria Cristina Fossi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via P.A. Mattioli, 4, Siena, Italy; National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Francesco Nardi
- National Biodiversity Future Center (NBFC), Palermo, Italy; Department of Life Sciences, University of Siena, Via A. Moro, 2, Siena, Italy
| | - Matteo Baini
- Department of Physical, Earth and Environmental Sciences, University of Siena, Via P.A. Mattioli, 4, Siena, Italy; National Biodiversity Future Center (NBFC), Palermo, Italy
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17
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Cruz RMS, Rainer B, Wagner I, Krauter V, Janalíková M, Vicente AA, Vieira JM. Valorization of Cork Stoppers, Coffee-Grounds and Walnut Shells in the Development and Characterization of Pectin-Based Composite Films: Physical, Barrier, Antioxidant, Genotoxic, and Biodegradation Properties. Polymers (Basel) 2024; 16:1053. [PMID: 38674972 PMCID: PMC11053454 DOI: 10.3390/polym16081053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The development of sustainable materials from the valorization of waste is a good alternative to reducing the negative environmental impact of plastic packaging. The objectives of this study were to develop and characterize pectin-based composite films incorporated with cork or cork with either coffee grounds or walnut shells, as well as to test the films' genotoxicity, antioxidant properties, and biodegradation capacity in soil and seawater. The addition of cork, coffee grounds, or walnut shells modified the films' characteristics. The results showed that those films were thicker (0.487 ± 0.014 mm to 0.572 ± 0.014 mm), more opaque (around 100%), darker (L* = 25.30 ± 0.78 to 33.93 ± 0.84), and had a higher total phenolic content (3.17 ± 0.01 mg GA/g to 4.24 ± 0.02 mg GA/g). On the other hand, the films incorporated only with cork showed higher values of elongation at break (32.24 ± 1.88% to 36.30 ± 3.25%) but lower tensile strength (0.91 ± 0.19 MPa to 1.09 ± 0.08 MPa). All the films presented more heterogeneous and rougher microstructures than the pectin film. This study also revealed that the developed films do not contain DNA-reactive substances and that they are biodegradable in soil and seawater. These positive properties could subsequently make the developed films an interesting eco-friendly food packaging solution that contributes to the valorization of organic waste and by-products, thus promoting the circular economy and reducing the environmental impact of plastic materials.
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Affiliation(s)
- Rui M. S. Cruz
- Department of Food Engineering, Institute of Engineering, Universidade do Algarve, Campus da Penha, 8005-139 Faro, Portugal
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Faculty of Sciences and Technology, Campus de Gambelas, Universidade do Algarve, 8005-139 Faro, Portugal
| | - Bernhard Rainer
- Packaging and Resource Management, Department Applied Life Sciences, FH Campus Wien, University of Applied Sciences, 1100 Vienna, Austria; (B.R.); (I.W.); (V.K.)
| | - Isabella Wagner
- Packaging and Resource Management, Department Applied Life Sciences, FH Campus Wien, University of Applied Sciences, 1100 Vienna, Austria; (B.R.); (I.W.); (V.K.)
| | - Victoria Krauter
- Packaging and Resource Management, Department Applied Life Sciences, FH Campus Wien, University of Applied Sciences, 1100 Vienna, Austria; (B.R.); (I.W.); (V.K.)
| | - Magda Janalíková
- Department of Environmental Protection Engineering, Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech Republic;
| | - António A. Vicente
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.A.V.); (J.M.V.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Jorge M. Vieira
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (A.A.V.); (J.M.V.)
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
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18
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Hernandez-Charpak YD, Mozrall AM, Williams NJ, Trabold TA, Diaz CA. Biochar as a sustainable alternative to carbon black in agricultural mulch films. ENVIRONMENTAL RESEARCH 2024; 246:117916. [PMID: 38147918 DOI: 10.1016/j.envres.2023.117916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/20/2023] [Accepted: 12/09/2023] [Indexed: 12/28/2023]
Abstract
Examples of biochar as an alternative to traditional plastic fillers, like carbon black, are numerous and growing. However, in the agricultural mulch film application, both the polymer and its fillers are pushed to their mechanical limit to obtain an effective product, using the least amount of plastic. Through a combined techno-economic analysis (TEA) and life cycle assessment (LCA), this study characterizes the use of carbon-negative biochar as an opacity filler in mulch film applications. Due to its larger particle size, the biochar demands additional thickness to achieve equivalent opacity as carbon black in films. A thicker film translates to additional polymer demand, and a significant increase in price and environmental impact. A comparable formulation for an equal price ($623 per mulched ha) as a 2.6 wt % carbon black with 25 μm thickness was derived, needing 15 wt % biochar and a thickness of 30 μm. The biochar formulation resulted in a slightly higher global warming potential (3% increase), but much larger impact in the land use category (+339%), and the sample was deemed not fit for use in the intended mulch application. These results indicate that in applications where the polymeric matrix and its fillers are pushed to their mechanical limit, the displacement of traditional fillers by biochar is challenging. However, biochar derived from waste biomass (thus reducing land use impact) remains a valid, environmentally beneficial solution to displace traditional fillers for non-extreme plastic uses (commodity plastics) and thicker composites.
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Affiliation(s)
- Y D Hernandez-Charpak
- Golisano Institute for Sustainability, Rochester Institute of Technology (RIT), Rochester, NY, 14623, USA
| | - A M Mozrall
- Department of Packaging and Graphic Media Science, RIT, Rochester, NY, 14623, USA
| | - N J Williams
- Golisano Institute for Sustainability, Rochester Institute of Technology (RIT), Rochester, NY, 14623, USA
| | - T A Trabold
- Golisano Institute for Sustainability, Rochester Institute of Technology (RIT), Rochester, NY, 14623, USA
| | - C A Diaz
- Department of Packaging and Graphic Media Science, RIT, Rochester, NY, 14623, USA.
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19
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Abdulla SF, Shams R, Dash KK. Edible packaging as sustainable alternative to synthetic plastic: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-32806-z. [PMID: 38462564 DOI: 10.1007/s11356-024-32806-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
The choice of an appropriate packaging materials enhances the shelf life and improves quality of food during transportation, storage, and distribution. Development and innovations in food packaging systems have become essential in the food industry. Most widely used packaging materials are non-biodegradable plastics and are harmful to environment and human health. Thus, food industry is replacing non-biodegradable plastics with biodegradable plastics to reduce environmental pollution, health hazards, and food waste. Edible packaging may reduce food waste and keep perishables fresh. This review article compares edible packaging materials to synthetic ones and discusses their pollution-reducing effects. The several types of food packaging discussed in the review include those produced from polysaccharides, proteins, lipids, and composite films. The various characteristics of edible packaging are reviewed, including its barrier qualities, carrier properties, mechanical capabilities, and edibility. The carrier properties describe the capacity to transport and manage the release of active substances, and the edibility indicates acceptance of these items by the customers. Plasticizers, antimicrobials, antioxidants, and emulsifiers were included in the edible packaging to enhance the characteristics of the film. The development and implementation of edible packaging on food products from the laboratory to large-scale industrial levels, as well as their potential industrial applications in the dairy, meat, confectionary, poultry, fish, fruit, and vegetable processing sectors are addressed.
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Affiliation(s)
- Subhan Farook Abdulla
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab, India
| | - Rafeeya Shams
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, Punjab, India
| | - Kshirod Kumar Dash
- Department of Food Processing Technology, Ghani Khan Choudhury Institute of Engineering and Technology, Malda, West Bengal, India.
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20
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Ali Z, Abdullah M, Yasin MT, Amanat K, Ahmad K, Ahmed I, Qaisrani MM, Khan J. Organic waste-to-bioplastics: Conversion with eco-friendly technologies and approaches for sustainable environment. ENVIRONMENTAL RESEARCH 2024; 244:117949. [PMID: 38109961 DOI: 10.1016/j.envres.2023.117949] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/24/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
Petrochemical-based synthetic plastics poses a threat to humans, wildlife, marine life and the environment. Given the magnitude of eventual depletion of petrochemical sources and global environmental pollution caused by the manufacturing of synthetic plastics such as polyethylene (PET) and polypropylene (PP), it is essential to develop and adopt biopolymers as an environment friendly and cost-effective alternative to synthetic plastics. Research into bioplastics has been gaining traction as a way to create a more sustainable and eco-friendlier environment with a reduced environmental impact. Biodegradable bioplastics can have the same characteristics as traditional plastics while also offering additional benefits due to their low carbon footprint. Therefore, using organic waste from biological origin for bioplastic production not only reduces our reliance on edible feedstock but can also effectively assist with solid waste management. This review aims at providing an in-depth overview on recent developments in bioplastic-producing microorganisms, production procedures from various organic wastes using either pure or mixed microbial cultures (MMCs), microalgae, and chemical extraction methods. Low production yield and production costs are still the major bottlenecks to their deployment at industrial and commercial scale. However, their production and commercialization pose a significant challenge despite such potential. The major constraints are their production in small quantity, poor mechanical strength, lack of facilities and costly feed for industrial-scale production. This review further explores several methods for producing bioplastics with the aim of encouraging researchers and investors to explore ways to utilize these renewable resources in order to commercialize degradable bioplastics. Challenges, future prospects and Life cycle assessment of bioplastics are also highlighted. Utilizing a variety of bioplastics obtained from renewable and cost-effective sources (e.g., organic waste, agro-industrial waste, or microalgae) and determining the pertinent end-of-life option (e.g., composting or anaerobic digestion) may lead towards the right direction that assures the sustainable production of bioplastics.
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Affiliation(s)
- Zain Ali
- Institute of Biological Sciences, Khwaja Fareed University of Engineering & Information Technology, 64200, Rahim Yar Khan, Pakistan
| | - Muhammad Abdullah
- Institute of Biological Sciences, Khwaja Fareed University of Engineering & Information Technology, 64200, Rahim Yar Khan, Pakistan
| | - Muhammad Talha Yasin
- Institute of Biological Sciences, Khwaja Fareed University of Engineering & Information Technology, 64200, Rahim Yar Khan, Pakistan.
| | - Kinza Amanat
- Institute of Biological Sciences, Khwaja Fareed University of Engineering & Information Technology, 64200, Rahim Yar Khan, Pakistan.
| | - Khurshid Ahmad
- State Key Laboratory of Marine Food Processing & Safety Control, College of Food Science and Engineering, Ocean University of China, No.1299, Sansha Road, Qingdao, Shandong Province, 266404, P.R. China.
| | - Ishfaq Ahmed
- Haide College, Ocean University of China, Laoshan Campus, Qingdao, Shandong Province, 266100, PR China
| | - Muther Mansoor Qaisrani
- Institute of Biological Sciences, Khwaja Fareed University of Engineering & Information Technology, 64200, Rahim Yar Khan, Pakistan
| | - Jallat Khan
- Institute of Biological Sciences, Khwaja Fareed University of Engineering & Information Technology, 64200, Rahim Yar Khan, Pakistan; Institute of Chemistry, Khwaja Fareed University of Engineering and Information Technology (KFUEIT), 64200, Rahim Yar Khan, Pakistan.
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21
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Shin N, Kim SH, Oh J, Kim S, Lee Y, Shin Y, Choi S, Bhatia SK, Kim YG, Yang YH. Reproducible Polybutylene Succinate (PBS)-Degrading Artificial Consortia by Introducing the Least Type of PBS-Degrading Strains. Polymers (Basel) 2024; 16:651. [PMID: 38475335 DOI: 10.3390/polym16050651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/08/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Polybutylene succinate (PBS) stands out as a promising biodegradable polymer, drawing attention for its potential as an eco-friendly alternative to traditional plastics due to its biodegradability and reduced environmental impact. In this study, we aimed to enhance PBS degradation by examining artificial consortia composed of bacterial strains. Specifically, Terribacillus sp. JY49, Bacillus sp. JY35, and Bacillus sp. NR4 were assessed for their capabilities and synergistic effects in PBS degradation. When only two types of strains, Bacillus sp. JY35 and Bacillus sp. NR4, were co-cultured as a consortium, a notable increase in degradation activity toward PBS was observed compared to their activities alone. The consortium of Bacillus sp. JY35 and Bacillus sp. NR4 demonstrated a remarkable degradation yield of 76.5% in PBS after 10 days. The degradation of PBS by the consortium was validated and our findings underscore the potential for enhancing PBS degradation and the possibility of fast degradation by forming artificial consortia, leveraging the synergy between strains with limited PBS degradation activity. Furthermore, this study demonstrated that utilizing only two types of strains in the consortium facilitates easy control and provides reproducible results. This approach mitigates the risk of losing activity and reproducibility issues often associated with natural consortia.
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Affiliation(s)
- Nara Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Su Hyun Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jinok Oh
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Suwon Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yeda Lee
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yuni Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Suhye Choi
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
- Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
| | - Yun-Gon Kim
- Department of Chemical Engineering, Soongsil University, Seoul 06978, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea
- Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul 05029, Republic of Korea
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22
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Peng W, Nie R, Lü F, Zhang H, He P. Biodegradability of PBAT/PLA coated paper and bioplastic bags under anaerobic digestion. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 174:218-228. [PMID: 38064993 DOI: 10.1016/j.wasman.2023.11.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/21/2023] [Accepted: 11/29/2023] [Indexed: 01/16/2024]
Abstract
Poly (lactic acid) (PLA) and Poly(butylene adipate-co-terephthalate) (PBAT) are two of biodegradable plastics with the highest production capacities in 2021. Bioplastic waste management can be easily integrated with organic waste management, especially when bioplastics are used as food packaging material, since they are potentially biodegradable. The aim of this study was to assess the biodegradability of biodegradable polymer-coated paper (BPCP) and bioplastic bags made from PBAT/PLA blend during mesophilic and thermophilic anaerobic digestion (AD) and to reveal the changes in the physicochemical properties of the bioplastics. BPCP obtained 155 NmL-CH4/g VS and 307.3 NmL-CH4/g VS under mesophilic and thermophilic conditions, respectively, but left bioplastic film residues. The bioplastic bags did not exhibit significant biodegradation during the AD processes. 1H NMR results indicated that the ratio of PLA to PBAT decreased significantly after AD of the BPCP film and that PLA monomers were formed from the bioplastic bags, leading to a decrease in the hydrophobicity on the surfaces of the materials. Methanoculleus was found to be enriched on the bioplastic surface after mesophilic AD. From the perspective of coupling bioplastic waste management with the food waste management, the incorporation of BPCP into the AD reactor not only enhances system stability and methane production to a greater extent than biodegradable plastic bags but also raises concerns regarding the residual biofilm when utilizing the digestate for direct land applications.
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Affiliation(s)
- Wei Peng
- Institute of Waste Treatment & Reclamation, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Rong Nie
- Institute of Waste Treatment & Reclamation, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Fan Lü
- Institute of Waste Treatment & Reclamation, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Hua Zhang
- Institute of Waste Treatment & Reclamation, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Pinjing He
- Institute of Waste Treatment & Reclamation, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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23
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Kaing V, Guo Z, Sok T, Kodikara D, Breider F, Yoshimura C. Photodegradation of biodegradable plastics in aquatic environments: Current understanding and challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 911:168539. [PMID: 37981156 DOI: 10.1016/j.scitotenv.2023.168539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/20/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023]
Abstract
Direct and indirect photolysis are important abiotic processes in aquatic environments through which plastics can be transformed physically and chemically. Transport of biodegradable plastics in water is influenced by vertical mixing and turbulent flow, which make biodegradable plastics remain susceptible to sunlight and photolysis despite their high density. In general, biodegradable plastics are composed of ester containing polymers (e.g., poly(butylene succinate), polyhydroxyalkanoate, and polylactic acid), whereas non-biodegradable plastics are composed of long chains of saturated aliphatic hydrocarbons in their backbones (e.g., polyethylene, polypropylene, and polystyrene). Based on the reviewed knowledge and discussion, we may hypothesize that 1) direct photolysis is more pronounced for non-biodegradation than for biodegradable plastics, 2) smaller plastics such as micro/nano-plastics are more prone to photodegradation and photo-transformation by direct and indirect photolysis, 3) the production rate of reactive oxygen species (ROS) on the surface of biodegradable plastics is higher than that of non-biodegradable plastics, 4) the photodegradation of biodegradable plastics may be promoted by ROS produced from biodegradable plastics themselves, and 5) the subsequent reactions of ROS are more active on biodegradable plastics than non-biodegradable plastics. Moreover, micro/nanoplastics derived from biodegradable plastics serve as more effective carriers of organic pollutants than those from non-biodegradable plastics and thus biodegradable plastics may not necessarily be more ecofriendly than non-biodegradable plastics. However, biodegradable plastics have been largely unexplored from the viewpoint of direct or indirect photolysis. Roles of reactive oxygen species originating from biodegradable plastics should be further explored for comprehensively understanding the photodegradation of biodegradable plastics.
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Affiliation(s)
- Vinhteang Kaing
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-4 Ookayama, Meguro-ku, Tokyo 152-8550, Japan; Faculty of Hydrology and Water Resources Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh, Cambodia
| | - Zhongyu Guo
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-4 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Ty Sok
- Faculty of Hydrology and Water Resources Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh, Cambodia; Research and Innovation Center, Institute of Technology of Cambodia, Phnom Penh, Cambodia
| | - Dilini Kodikara
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-4 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Florian Breider
- EPFL - Ecole Polytechnique Fédérale de Lausanne, Central Environmental Laboratory, Institute of Environmental Engineering, ENAC, station 2, CH-1015 Lausanne, Switzerland
| | - Chihiro Yoshimura
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-4 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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24
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Rawindran H, Arif Bin Hut N, Vrasna DK, Goh PS, Lim JW, Liew CS, Ho CD, Kang HS, Shahid MK, Ng HS, Habila MA, Khoo KS. Ultrafiltration membrane fabricated from polyethylene terephthalate plastic waste for treating microalgal wastewater and reusing for microalgal cultivation. CHEMOSPHERE 2024; 346:140591. [PMID: 37918531 DOI: 10.1016/j.chemosphere.2023.140591] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/07/2023] [Accepted: 10/29/2023] [Indexed: 11/04/2023]
Abstract
Current study had made a significant progress in microalgal wastewater treatment through the implementation of an economically viable polyethylene terephthalate (PET) membrane derived from plastic bottle waste. The membrane exhibited an exceptional pure water flux of 156.5 ± 0.25 L/m2h and a wastewater flux of 15.37 ± 0.02 L/m2h. Moreover, the membrane demonstrated remarkable efficiency in selectively removing a wide range of residual parameters, achieving rejection rates up to 99%. The reutilization of treated wastewater to grow microalgae had resulted in a marginal decrease in microalgal density, from 10.01 ± 0.48 to 9.26 ± 0.66 g/g. However, this decline was overshadowed by a notable enhancement in lipid production with level rising from 181.35 ± 0.42 to 225.01 ± 0.11 mg/g. These findings signified the membrane's capacity to preserve nutrients availability within the wastewater; thus, positively influencing the lipid synthesis and accumulation within microalgal cells. Moreover, the membrane's comprehensive analysis of cross-sectional and surface topographies revealed the presence of macropores with a highly interconnected framework, significantly amplifying the available surface area for fluid flow. This exceptional structural attribute had substantially contributed to the membrane's efficacy by facilitating superior filtration and separation process. Additionally, the identified functional groups within the membrane aligned consistently with those commonly found in PET polymer, confirming the membrane's compatibility and efficacy in microalgal wastewater treatment.
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Affiliation(s)
- Hemamalini Rawindran
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Nur Arif Bin Hut
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia
| | - Dhita Karunia Vrasna
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Johor, Malaysia
| | - Jun Wei Lim
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 602105, Chennai, India.
| | - Chin Seng Liew
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Chii-Dong Ho
- Department of Chemical and Materials Engineering, Tamkang University, Tamsui, New Taipei, 251301, Taiwan
| | - Hooi-Siang Kang
- Marine Technology Center, Institute for Vehicle System & Engineering, Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia
| | - Muhammad Kashif Shahid
- Research Institute of Environment & Biosystem, Chungnam National University, Yuseonggu, Daejeon, 34134, Republic of Korea
| | - Hui-Suan Ng
- Centre for Research and Graduate Studies, University of Cyberjaya, Persiaran Bestari, 63000, Cyberjaya, Selangor, Malaysia
| | - Mohamed A Habila
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
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25
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Yu Y, Li J. Biochar-derived dissolved and particulate matter effects on the phytotoxicity of polyvinyl chloride nanoplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167258. [PMID: 37741394 DOI: 10.1016/j.scitotenv.2023.167258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
Nanoplastics in environments are potentially detrimental to plant growth. Appropriate doses of biochar can alleviate the phytotoxicity of nanoplastics under hydroponic conditions. However, the specific mechanisms remain unknown. In this study, the effects of biochar-derived dissolved matter (BCDM) and biochar-derived particulate matter (BCPM) on the phytotoxicity of polyvinyl chloride (PVC) nanoplastics were investigated and the underlying influencing mechanisms were elucidated. The results showed that PVC nanoplastics can be adsorbed and taken up by lettuce roots, inducing oxidative damage to lettuce shoots and roots and reducing their fresh weight. BCDM can promote the aggregation and sedimentation of PVC nanoplastics, and BCPM can adsorb PVC nanoplastics and cause barrier effect, which will reduce the exposure dose of PVC nanoplastics. Furthermore, nutrients in BCDM can promote lettuce growth. As a result, the presence of both BCDM and BCPM significantly mitigated the oxidative stress of lettuce shoots and roots as demonstrated by the decrease in hydrogen peroxide and malondialdehyde levels (p < 0.05). Meanwhile, lettuce biomass was significantly increased after addition of BCDM and BCPM compared to the single PVC treatment group (p < 0.05). This study provides a theoretical basis for finding solutions to alleviate the phytotoxicity of nanoplastics.
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Affiliation(s)
- Yufei Yu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Jia Li
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China.
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26
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Pesaranhajiabbas E, Misra M, Mohanty AK. Recent progress on biodegradable polylactic acid based blends and their biocomposites: A comprehensive review. Int J Biol Macromol 2023; 253:126231. [PMID: 37567528 DOI: 10.1016/j.ijbiomac.2023.126231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/02/2023] [Accepted: 08/06/2023] [Indexed: 08/13/2023]
Abstract
Being less dependent on non-renewable resources as well as protecting the environment from waste streams have become two critical primers for a global movement toward replacing conventional plastics with renewable and biodegradable polymers. Despite all these efforts, only a few biodegradable polymers have paved their way successfully into the market. Polylactic acid is one of these biodegradable polymers that has been investigated thoroughly by researchers as well as manufactured on a large industrial scale. It is synthesized from lactic acid obtained mainly from the biological fermentation of carbohydrates, which makes this material a renewable polymer. Besides its renewability, it benefits from some attractive mechanical performances including high strength and stiffness, though brittleness is a major drawback of this biopolymer. Accordingly, the development of blends and biocomposites based on polylactic acid with highly flexible biodegradable polymers, specifically poly(butylene adipate co terephthalate) has been the objective of many investigations recently. This paper focuses on the blends and biocomposites based on these two biopolymers, specifically their mechanical, rheological, and biodegradation, the main characteristics that are crucial for being considered as a biodegradable substitution for conventional non-biodegradable polymers.
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Affiliation(s)
- Ehsan Pesaranhajiabbas
- School of Engineering, Thornbrough Building, University of Guelph, Guelph N1G 2W1, Ontario, Canada; Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Manjusri Misra
- School of Engineering, Thornbrough Building, University of Guelph, Guelph N1G 2W1, Ontario, Canada; Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, Guelph N1G 2W1, Ontario, Canada.
| | - Amar K Mohanty
- School of Engineering, Thornbrough Building, University of Guelph, Guelph N1G 2W1, Ontario, Canada; Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, Guelph N1G 2W1, Ontario, Canada.
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27
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Lackner M, Mukherjee A, Koller M. What Are "Bioplastics"? Defining Renewability, Biosynthesis, Biodegradability, and Biocompatibility. Polymers (Basel) 2023; 15:4695. [PMID: 38139947 PMCID: PMC10747977 DOI: 10.3390/polym15244695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Today, plastic materials are mostly made from fossil resources, and they are characterized by their long lifetime and pronounced persistence in the open environment. These attributes of plastics are one cause of the ubiquitous pollution we see in our environment. When plastics end up in the environment, most of this pollution can be attributed to a lack of infrastructure for appropriately collecting and recycling plastic waste, mainly due to mismanagement. Because of the huge production volumes of plastics, their merits of being cheap to produce and process and their recalcitrance have turned into a huge disadvantage, since plastic waste has become the end point of our linear economic usage model, and massive amounts have started to accumulate in the environment, leading to microplastics pollution and other detrimental effects. A possible solution to this is offered by "bioplastics", which are materials that are either (partly) biobased and/or degradable under defined conditions. With the rise of bioplastics in the marketplace, several standards and test protocols have been developed to assess, certify, and advertise their properties in this respect. This article summarizes and critically discusses different views on bioplastics, mainly related to the properties of biodegradability and biobased carbon content; this shall allow us to find a common ground for clearly addressing and categorizing bioplastic materials, which could become an essential building block in a circular economy. Today, bioplastics account for only 1-2% of all plastics, while technically, they could replace up to 90% of all fossil-based plastics, particularly in short-lived goods and packaging, the single most important area of use for conventional plastics. Their replacement potential not only applies to thermoplastics but also to thermosets and elastomers. Bioplastics can be recycled through different means, and they can be made from renewable sources, with (bio)degradability being an option for the mismanaged fraction and special applications with an intended end of life in nature (such as in seed coatings and bite protection for trees). Bioplastics can be used in composites and differ in their properties, similarly to conventional plastics. Clear definitions for "biobased" and "biodegradable" are needed to allow stakeholders of (bio)plastics to make fact-based decisions regarding material selection, application, and end-of-life options; the same level of clarity is needed for terms like "renewable carbon" and "bio-attributed" carbon, definitions of which are summarized and discussed in this paper.
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Affiliation(s)
- Maximilian Lackner
- Go!PHA, Oudebrugsteeg 9, 1012 JN Amsterdam, The Netherlands;
- Go!PHA, 12324 Hampton Way, Wake Forest, NC 27587, USA
- CIRCE Biotechnologie GmbH, Kerpengasse 125, 1210 Vienna, Austria
| | - Anindya Mukherjee
- Go!PHA, Oudebrugsteeg 9, 1012 JN Amsterdam, The Netherlands;
- Go!PHA, 12324 Hampton Way, Wake Forest, NC 27587, USA
| | - Martin Koller
- Institute of Chemistry, NAWI Graz, University of Graz, Heinrichstrasse 28/IV, 8010 Graz, Austria;
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Liu X, Ahmad S, Ma J, Wang D, Tang J. Comparative study on the toxic effects of secondary nanoplastics from biodegradable and conventional plastics on Streptomyces coelicolor M145. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132343. [PMID: 37639795 DOI: 10.1016/j.jhazmat.2023.132343] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/31/2023]
Abstract
Because of the excellent properties, plastics have been widely used in the past decades and caused serious environmental issues. As an excellent substitute for conventional plastics, the biodegradable plastics have attracted increasing attention. However, biodegradable plastics may produce more micro/nanoplastics in the short time compared with conventional plastics, and cause more serious ecological risks. In this study, the short-term toxicity of nanoplastics released from biodegradable and conventional plastics on Streptomyces coelicolor M145 was investigated. After 30 days of degradation, the biodegradable microplastics, polylactic acid (PLA) and polyhydroxyalkanoates (PHA) released more secondary nanoplastics than conventional microplastics, polystyrene (PS). After exposure, PLA and PHA nanoplastics showed significant toxicity to M145. The survival rate of M145 cells was 16.1% after treatment with PLA nanoplastics for 7 days (PLA-7). The toxicity of PHA was lower than that of PLA. This might have been due to the agglomeration of PHA nanoplastics in the solution. Compared with the controls, the PS secondary nanoplastics showed no significant toxicity to M145. After the treatment, the production of antibiotics, actinorhodin (ACT) and undecylprodigiosin (RED), significantly increased. The yields of ACT and RED reached their maximum values after treatment with PLA-7, which were 4.2-fold and 2.1-fold higher than those of the controls, respectively. The addition of biodegradable nanoplastics significantly increased the expression of these key pathway-specific regulatory genes, leading to increased antibiotic production. This study provides toxicological insights into the impacts of conventional and biodegradable microplastics on S. coelicolor.
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Affiliation(s)
- Xiaomei Liu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, China; MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Shakeel Ahmad
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jingkang Ma
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Dan Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Jingchun Tang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Wang T, Hosseinzadeh M, Cuccagna A, Alakenova R, Casademunt P, Reyes Rovatti A, López-Rubio A, Porte C. Comparative toxicity of conventional versus compostable plastic consumer products: An in-vitro assessment. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132123. [PMID: 37499498 DOI: 10.1016/j.jhazmat.2023.132123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/12/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023]
Abstract
This study investigates the toxicity of methanolic extracts obtained from compostable plastics (BPs) and conventional plastics (both virgin and recycled). Additionally, it explores the potential influence of plastic photodegradation and composting on toxic responses using a battery of in vitro assays conducted in PLHC-1 cells. The extracts of BPs, but not those of conventional plastics, induced a significant decrease in cell viability (<70%) in PLHC-1 cells after 24 h of exposure. Toxicity was enhanced by either photodegradation or composting of BPs. Extracts of conventional plastics, and particularly those of recycled plastics, induced 7-ethoxyresorufin-O-deethylase (EROD) activity and micronucleus formation in exposed cells, indicating the presence of significant amounts of CYP1A inducers and genotoxic compounds in the extracts, which was enhanced by photodegradation. These findings highlight the importance of investigating the effects of degradation mechanisms such as sunlight and composting on the toxicity of BPs. It is also crucial to investigate the composition of newly developed formulations for BPs, as they may be more harmful than conventional ones.
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Affiliation(s)
- Tiantian Wang
- Environmental Chemistry Department, IDAEA -CSIC, C/ Jordi Girona, 18-26, Barcelona 08034, Spain.
| | - Mahboubeh Hosseinzadeh
- Environmental Chemistry Department, IDAEA -CSIC, C/ Jordi Girona, 18-26, Barcelona 08034, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - Alice Cuccagna
- Environmental Chemistry Department, IDAEA -CSIC, C/ Jordi Girona, 18-26, Barcelona 08034, Spain
| | - Rakhat Alakenova
- Environmental Chemistry Department, IDAEA -CSIC, C/ Jordi Girona, 18-26, Barcelona 08034, Spain
| | - Paula Casademunt
- Environmental Chemistry Department, IDAEA -CSIC, C/ Jordi Girona, 18-26, Barcelona 08034, Spain
| | - Alcira Reyes Rovatti
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA-CSIC), Valencia, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - Amparo López-Rubio
- Food Safety and Preservation Department, Institute of Agrochemistry and Food Technology (IATA-CSIC), Valencia, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - Cinta Porte
- Environmental Chemistry Department, IDAEA -CSIC, C/ Jordi Girona, 18-26, Barcelona 08034, Spain; Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
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Liu G, Frankó B, Strömberg S, Zheng D, Nistor M, Liu J, Deng L. Impact of atmospheric pressure variations on aerobic biodegradation test. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2023; 41:1559-1569. [PMID: 37029528 DOI: 10.1177/0734242x231164320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Biodegradation rate is an important index to evaluate the environmental risk of chemicals, which is usually determined by measuring oxygen consumption through respirometer in a biodegradation test. However, atmospheric pressure variations affect reactor oxygen concentration and oxygen volume recorded by respirometer in biodegradation test, and the parameters of reactor volume and test material amount amplify its effect. Atmospheric pressure variation >1 kPa could introduce >20% underestimation in biodegradation rate when a small amount of test material (0.04-0.2 g per 100 g of inoculum) and high reactor volume (2-4 L) were used according to the international standards. A 5 kPa drop in atmospheric pressure leads to a 6% decrease in headspace oxygen concentration in the reactor, which could subsequently inhibit biodegradation microbials and decrease the biodegradation rate by 30%. Moreover, the biodegradation process (oxygen consumption rate) could be accelerated/delayed several times by atmospheric pressure variations compared to the process without variations when the oxygen consumption rate was <5 mL h-1 in a 0.5 or 1 L reactor and <10 mL h-1 in a 2-L reactor. Mitigating the effects of atmospheric pressure variations on biodegradation test includes lowering the reactor volume, increasing the test material amount and recording atmospheric pressure for further modification.
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Affiliation(s)
- Gangjin Liu
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, China
- Division of Biotechnology, Department of Chemistry, Lund University, Lund, Sweden
| | - Balázs Frankó
- Division of Biotechnology, Department of Chemistry, Lund University, Lund, Sweden
| | | | - Dan Zheng
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, China
| | | | - Jing Liu
- Division of Biotechnology, Department of Chemistry, Lund University, Lund, Sweden
- BPC Instruments AB, Lund, Sweden
| | - Liangwei Deng
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu, China
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Kim SH, Shin N, Oh SJ, Hwang JH, Kim HJ, Bhatia SK, Yun J, Kim JS, Yang YH. A strategy to promote the convenient storage and direct use of polyhydroxybutyrate-degrading Bacillus sp. JY14 by lyophilization with protective reagents. Microb Cell Fact 2023; 22:184. [PMID: 37715205 PMCID: PMC10503174 DOI: 10.1186/s12934-023-02173-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/09/2023] [Indexed: 09/17/2023] Open
Abstract
BACKGROUND Bioplastics are attracting considerable attention, owing to the increase in non-degradable waste. Using microorganisms to degrade bioplastics is a promising strategy for reducing non-degradable plastic waste. However, maintaining bacterial viability and activity during culture and storage remains challenging. With the use of conventional methods, cell viability and activity was lost; therefore, these conditions need to be optimized for the practical application of microorganisms in bioplastic degradation. Therefore, we aimed to optimize the feasibility of the lyophilization method for convenient storage and direct use. In addition, we incoporated protective reagents to increase the viability and activity of lyophilized microorganisms. By selecting and applying the best protective reagents for the lyophilization process and the effects of additives on the growth and PHB-degrading activity of strains were analyzed after lyophilization. For developing the lyophilization method for protecting degradation activity, it may promote practical applications of bioplastic-degrading bacteria. RESULTS In this study, the polyhydroxybutyrate (PHB)-degrading strain, Bacillus sp. JY14 was lyophilized with the use of various sugars as protective reagents. Among the carbon sources tested, raffinose was associated with the highest cell survival rate (12.1%). Moreover, 7% of raffionose showed the highest PHB degradation yield (92.1%). Therefore, raffinose was selected as the most effective protective reagent. Also, bacterial activity was successfully maintained, with raffinose, under different storage temperatures and period. CONCLUSIONS This study highlights lyophilization as an efficient microorganism storage method to enhance the applicability of bioplastic-degrading bacterial strains. The approach developed herein can be further studied and used to promote the application of microorganisms in bioplastic degradation.
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Grants
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 2022R1A2C2003138, 2017M3A9E4077234, NRF-2022M3I3A1082545 National Research Foundation of Korea
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- 20009508, 20018132 R&D Program of MOTIE/KEIT
- R&D Program of MOTIE/KEIT
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Affiliation(s)
- Su Hyun Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Nara Shin
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Suk Jin Oh
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Jeong Hyeon Hwang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Hyun Jin Kim
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea
- Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul, Republic of Korea
| | - Jeonghee Yun
- Department of Forest Products and Biotechnology, Kookmin University, Seoul, 02707, Republic of Korea
| | - Jae-Seok Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Yung-Hun Yang
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul, 05029, Republic of Korea.
- Institute for Ubiquitous Information Technology and Application, Konkuk University, Seoul, Republic of Korea.
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Pangallo D, Gelsomino A, Fazzino F, Pedullà A, Calabrò PS. The fate of biodegradable plastic during the anaerobic co-digestion of excess sludge and organic fraction of municipal solid waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 168:98-106. [PMID: 37290342 DOI: 10.1016/j.wasman.2023.05.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/09/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023]
Abstract
Co-digestion of the organic fraction of municipal solid waste (OFMSW) and excess sludge has several benefits especially related to improved methane production and better process stability. In recent years, the presence of biodegradable plastics is increasingly common in OFMSW especially since, as in Italy, biodegradable bags are used for its collection. In this paper, the influence and the fate of biodegradable bags during anaerobic co-digestion of excess sludge and OFMSW are assessed. The best results in terms of methane yield (about 180 NmL/gVS) have been obtained with the 50:50 (VS basis) co-digestion of excess sludge and OFMSW with an organic loading rate of 2 kgVS/m3·d. Bioplastic degradation is very limited during the co-digestion but it does not influence methane production or digestate chemical characteristics. However, the feeding of bioplastic bags seems to induce a higher phytotoxicity and the presence of undigested fragments is anyway a problem for further treatment or direct utilization of digestate.
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Affiliation(s)
- Domenica Pangallo
- Università degli Studi Mediterranea di Reggio Calabria, Department of Civil, Energy, Environmental and Materials Engineering, Via Graziella, loc. Feo di Vito, 89122 Reggio Calabria, Italy
| | - Antonio Gelsomino
- Università degli Studi Mediterranea di Reggio Calabria, Department of Agricultural Sciences, Feo di Vito, 89122 Reggio Calabria, Italy
| | - Filippo Fazzino
- Università degli Studi Mediterranea di Reggio Calabria, Department of Civil, Energy, Environmental and Materials Engineering, Via Graziella, loc. Feo di Vito, 89122 Reggio Calabria, Italy; Università degli Studi di Catania, Department of Civil Engineering and Architecture, Viale A. Doria, 6, Catania, Italy
| | - Altea Pedullà
- Università degli Studi Mediterranea di Reggio Calabria, Department of Civil, Energy, Environmental and Materials Engineering, Via Graziella, loc. Feo di Vito, 89122 Reggio Calabria, Italy
| | - Paolo S Calabrò
- Università degli Studi Mediterranea di Reggio Calabria, Department of Civil, Energy, Environmental and Materials Engineering, Via Graziella, loc. Feo di Vito, 89122 Reggio Calabria, Italy.
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Barili S, Bernetti A, Sannino C, Montegiove N, Calzoni E, Cesaretti A, Pinchuk I, Pezzolla D, Turchetti B, Buzzini P, Emiliani C, Gigliotti G. Impact of PVC microplastics on soil chemical and microbiological parameters. ENVIRONMENTAL RESEARCH 2023; 229:115891. [PMID: 37059323 DOI: 10.1016/j.envres.2023.115891] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/15/2023] [Accepted: 04/11/2023] [Indexed: 05/21/2023]
Abstract
Microplastics (MPs) are emerging pollutants whose occurrence is a global problem in natural ecosystems including soil. Among MPs, polyvinyl chloride (PVC) is a well-known polymer with remarkable resistance to degradation, and because its recalcitrant nature serious environmental concerns are created during manufacturing and waste disposal. The effect of PVC (0.021% w/w) on chemical and microbial parameters of an agricultural soil was tested by a microcosm experiment at different incubation times (from 3 to 360 days). Among chemical parameters, soil CO2 emission, fluorescein diacetate (FDA) activity, total organic C (TOC), total N, water extractable organic C (WEOC), water extractable N (WEN) and SUVA254 were considered, while the structure of soil microbial communities was studied at different taxonomic levels (phylum and genus) by sequencing bacterial 16S and fungal ITS2 rDNA (Illumina MiSeq). Although some fluctuations were found, chemical and microbiological parameters exhibited some significant trends. Significant (p < 0.05) variations of soil CO2 emission, FDA hydrolysis, TOC, WEOC and WEN were found in PVC-treated soils over different incubation times. Considering the structure of soil microbial communities, the presence of PVC significantly (p < 0.05) affected the abundances of specific bacterial and fungal taxa: Candidatus_Saccharibacteria, Proteobacteria, Actinobacteria, Acidobacteria and Bacteroides among bacteria, and Basidiomycota, Mortierellomycota and Ascomycota among fungi. After one year of experiment, a reduction of the number and the dimensions of PVC was detected supposing a possible role of microorganisms on PVC degradation. The abundance of both bacterial and fungal taxa at phylum and genus level was also affected by PVC, suggesting that the impact of this polymer could be taxa-dependent.
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Affiliation(s)
- Sofia Barili
- Department of Civil and Environmental Engineering, University of Perugia, Italy
| | - Alessandro Bernetti
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Ciro Sannino
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy.
| | - Nicolò Montegiove
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Eleonora Calzoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Alessio Cesaretti
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Irina Pinchuk
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Daniela Pezzolla
- Department of Civil and Environmental Engineering, University of Perugia, Italy
| | - Benedetta Turchetti
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Pietro Buzzini
- Department of Agricultural, Food and Environmental Science, University of Perugia, Italy
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Giovanni Gigliotti
- Department of Civil and Environmental Engineering, University of Perugia, Italy
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Pooja N, Chakraborty I, Rahman MH, Mazumder N. An insight on sources and biodegradation of bioplastics: a review. 3 Biotech 2023; 13:220. [PMID: 37265543 PMCID: PMC10230146 DOI: 10.1007/s13205-023-03638-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 05/15/2023] [Indexed: 06/03/2023] Open
Abstract
Durability and affordability are two main reasons for the widespread consumption of plastic in the world. However, the inability of these materials to undergo degradation has become a significant threat to the environment and human health To address this issue, bioplastics have emerged as a promising alternative. Bioplastics are obtained from renewable and sustainable biomass and have a lower carbon footprint and emit fewer greenhouse gases than petroleum-based plastics. The use of these bioplastics sourced from renewable biomass can also reduce the dependency on fossil fuels, which are limited in availability. This review provides an elaborate comparison of biodegradation rates of potential bioplastics in soil from various sources such as biomass, microorganisms, and monomers. These bioplastics show great potential as a replacement for conventional plastics due to their biodegradable and diverse properties.
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Affiliation(s)
- Nag Pooja
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104 India
| | - Ishita Chakraborty
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104 India
| | - Md. Hafizur Rahman
- Department of Quality Control and Safety Management, Faculty of Food Sciences and Safety, Khulna Agricultural University, Khulna, Bangladesh
| | - Nirmal Mazumder
- Department of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka 576104 India
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Ali SS, Abdelkarim EA, Elsamahy T, Al-Tohamy R, Li F, Kornaros M, Zuorro A, Zhu D, Sun J. Bioplastic production in terms of life cycle assessment: A state-of-the-art review. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2023; 15:100254. [PMID: 37020495 PMCID: PMC10068114 DOI: 10.1016/j.ese.2023.100254] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 06/19/2023]
Abstract
The current transition to sustainability and the circular economy can be viewed as a socio-technical response to environmental impacts and the need to enhance the overall performance of the linear production and consumption paradigm. The concept of biowaste refineries as a feasible alternative to petroleum refineries has gained popularity. Biowaste has become an important raw material source for developing bioproducts and biofuels. Therefore, effective environmental biowaste management systems for the production of bioproducts and biofuels are crucial and can be employed as pillars of a circular economy. Bioplastics, typically plastics manufactured from bio-based polymers, stand to contribute to more sustainable commercial plastic life cycles as part of a circular economy in which virgin polymers are made from renewable or recycled raw materials. Various frameworks and strategies are utilized to model and illustrate additional patterns in fossil fuel and bioplastic feedstock prices for various governments' long-term policies. This review paper highlights the harmful impacts of fossil-based plastic on the environment and human health, as well as the mass need for eco-friendly alternatives such as biodegradable bioplastics. Utilizing new types of bioplastics derived from renewable resources (e.g., biowastes, agricultural wastes, or microalgae) and choosing the appropriate end-of-life option (e.g., anaerobic digestion) may be the right direction to ensure the sustainability of bioplastic production. Clear regulation and financial incentives are still required to scale from niche polymers to large-scale bioplastic market applications with a truly sustainable impact.
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Affiliation(s)
- Sameh Samir Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Esraa A. Abdelkarim
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Tamer Elsamahy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Rania Al-Tohamy
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Fanghua Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province, 150090, China
| | - Michael Kornaros
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 26504, Patras, Greece
| | - Antonio Zuorro
- Department of Chemical Engineering, Materials and Environment, Sapienza University, 00184, Rome, Italy
| | - Daochen Zhu
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
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Dirpan A, Ainani AF, Djalal M. A Review on Biopolymer-Based Biodegradable Film for Food Packaging: Trends over the Last Decade and Future Research. Polymers (Basel) 2023; 15:2781. [PMID: 37447428 DOI: 10.3390/polym15132781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
In recent years, much attention has been paid to the use of biopolymers as food packaging materials due to their important characteristics and properties. These include non-toxicity, ease of availability, biocompatibility, and biodegradability, indicating their potential as an alternative to conventional plastic packaging that has long been under environmental scrutiny. Given the current focus on sustainable development, it is imperative to develop studies on biopolymers as eco-friendly and sustainable food packaging materials. Therefore, the aim of this review is to explore trends and characteristics of biopolymer-based biodegradable films for food packaging, analyze the contribution of various journals and cooperation between countries, highlight the most influential authors and articles, and provide an overview of the social, environmental, and economic aspects of biodegradable films for food packaging. To achieve this goal, a bibliometric analysis and systematic review based on the PRISMA method were conducted. Relevant articles were carefully selected from the Scopus database. A bibliometric analysis was also conducted to discuss holistically, comprehensively, and objectively biodegradable films for food packaging. An increasing interest was found in this study, especially in the last 3 years with Brazil and China leading the number of papers on biodegradable films for food packaging, which were responsible for 20.4% and 12.5% of the published papers, respectively. The results of the keyword analysis based on the period revealed that the addition of bioactive compounds into packaging films is very promising because it can increase the quality and safety of packaged food. These results reveal that biodegradable films demonstrate a positive and promising trend as food packaging materials that are environmentally friendly and promote sustainability.
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Affiliation(s)
- Andi Dirpan
- Department of Agricultural Technology, Faculty of Agriculture, Hasanuddin University, Makassar 90245, Indonesia
- Center of Excellence in Science and Technology on Food Product Diversification, Makassar 90245, Indonesia
| | - Andi Fadiah Ainani
- Research Group for Post-Harvest Technology and Biotechnology, Makassar 90245, Indonesia
| | - Muspirah Djalal
- Department of Agricultural Technology, Faculty of Agriculture, Hasanuddin University, Makassar 90245, Indonesia
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Kong U, Mohammad Rawi NF, Tay GS. The Potential Applications of Reinforced Bioplastics in Various Industries: A Review. Polymers (Basel) 2023; 15:polym15102399. [PMID: 37242974 DOI: 10.3390/polym15102399] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
The introduction of bioplastics has been an evolution for plastic industry since conventional plastics have been claimed to cause several environmental issues. Apart from its biodegradability, one of the advantages can be identified of using bioplastic is that they are produced by renewal resources as the raw materials for synthesis. Nevertheless, bioplastics can be classified into two types, which are biodegradable and non-biodegradable, depending on the type of plastic that is produced. Although some of the bioplastics are non-biodegradable, the usage of biomass in synthesising the bioplastics helps in preserving non-renewable resources, which are petrochemical, in producing conventional plastics. However, the mechanical strength of bioplastic still has room for improvement as compared to conventional plastics, which is believed to limit its application. Ideally, bioplastics need to be reinforced for improving their performance and properties to serve their application. Before 21st century, synthetic reinforcement has been used to reinforce conventional plastic to achieve its desire properties to serve its application, such as glass fiber. Owing to several issues, the trend has been diversified to utilise natural resources as reinforcements. There are several industries that have started to use reinforced bioplastic, and this article focuses on the advantages of using reinforced bioplastic in various industries and its limitations. Therefore, this article aims to study the trend of reinforced bioplastic applications and the potential applications of reinforced bioplastics in various industries.
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Affiliation(s)
- Uwei Kong
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, USM, Gelugor 11800, Penang, Malaysia
| | - Nurul Fazita Mohammad Rawi
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, USM, Gelugor 11800, Penang, Malaysia
- Green Biopolymer, Coatings & Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, USM, Gelugor 11800, Penang, Malaysia
| | - Guan Seng Tay
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, USM, Gelugor 11800, Penang, Malaysia
- Green Biopolymer, Coatings & Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, USM, Gelugor 11800, Penang, Malaysia
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Rajvanshi J, Sogani M, Kumar A, Arora S, Syed Z, Sonu K, Gupta NS, Kalra A. Perceiving biobased plastics as an alternative and innovative solution to combat plastic pollution for a circular economy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162441. [PMID: 36858235 DOI: 10.1016/j.scitotenv.2023.162441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Plastic waste from fossil-based sources, including single-use packaging materials, is continuously accumulating in landfills, and leaching into the environment. A 2021 UN Environment Programme (UNEP) report suggests that the plastic pollution is likely to be doubled by 2030, posing a major challenge to the environment and the overall global plastic waste management efforts. The use of biobased plastics such as polyhydroxyalkanoates (PHAs) as a biodegradable substitute for petroleum-based plastics could be a feasible option to combat this issue which may further result in much lower carbon emissions and energy usage in comparison to conventional plastics as additional advantages. Though recent years have seen the use of microbes as biosynthetic machinery for biobased plastics, using various renewable feedstocks, the scaled-up production of such materials is still challenging. The current study outlays applications of biobased plastics, potential microorganisms producing biobased plastics such as Cupriavidus necator, Bacillus sp., Rhodopseudomonas palustris, microalgae, and mixed microbial cultures, and inexpensive and renewable resources as carbon substrates including industrial wastes. This review also provides deep insights into the operational parameters, challenges and mitigation, and future opportunities for maximizing the production of biobased plastic products. Finally, this review emphasizes the concept of biorefinery as a sustainable and innovative solution for biobased plastic production for achieving a circular bioeconomy.
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Affiliation(s)
- Jayana Rajvanshi
- Department of Biosciences, Manipal University Jaipur, 303007, Rajasthan, India
| | - Monika Sogani
- Department of Biosciences, Manipal University Jaipur, 303007, Rajasthan, India.
| | - Anu Kumar
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO), Environment, Waite Campus, Urrbrae, SA 5064, Australia.
| | - Sudipti Arora
- Dr. B. Lal Institute of Biotechnology, Malviya Industrial Area, Malviya Nagar, Jaipur, 302017, Rajasthan, India
| | - Zainab Syed
- Department of Biosciences, Manipal University Jaipur, 303007, Rajasthan, India
| | - Kumar Sonu
- Department of Mechanical Engineering, Kashi Institute of Technology, Varanasi, 221307, Uttar Pradesh, India
| | - Nishan Sen Gupta
- Department of Biosciences, Manipal University Jaipur, 303007, Rajasthan, India
| | - Aakanksha Kalra
- Dr. B. Lal Institute of Biotechnology, Malviya Industrial Area, Malviya Nagar, Jaipur, 302017, Rajasthan, India
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Lee Y, Cho S, Park K, Kim T, Kim J, Ryu DY, Hong J. Potential lifetime effects caused by cellular uptake of nanoplastics: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121668. [PMID: 37087090 DOI: 10.1016/j.envpol.2023.121668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Plastics have been used for about 100 years, and daily-use products composed of plastics are now prevalent. As a result, humans are very easily exposed to the plastic particles generated from the daily-use plastics. However, studies on cellular uptake of nanoplastics in "human cells" have only recently begun to attract attention. In previous studies, definitions of nanoplastics and microplastics were vague, but recently, they have been considered to be different and are being studied separately. However, nanoplastics, unlike plastic particles of other sizes such as macro- and microplastics, can be absorbed by human cells, and thus can cause various risks such as cytotoxicity, inflammation, oxidative stress, and even diseases such as cancer82, 83. and diabetes (Fan et al., 2022; Wang et al., 2023). Thus, in this review, we defined microplastics and nanoplastics to be different and described the potential risks of nanoplastics to human caused by cellular uptake according to their diverse factors. In addition, during and following plastic product usage a substantial number of fragments of different sizes can be generated, including nanoplastics. Fragmentation of microplastics into nanoplastics may also occur during ingestion and inhalation, which can potentially cause long-term hazards to human health. However, there are still few in vivo studies conducted on the health effect of nanoplastics ingestion and inhalation.
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Affiliation(s)
- Yoojin Lee
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Seongeun Cho
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Kyungtae Park
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Taihyun Kim
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jiyu Kim
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Du-Yeol Ryu
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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40
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Smart packaging − A pragmatic solution to approach sustainable food waste management. Food Packag Shelf Life 2023. [DOI: 10.1016/j.fpsl.2023.101044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Zappaterra F, Renzi M, Piccardo M, Spennato M, Asaro F, Di Serio M, Vitiello R, Turco R, Todea A, Gardossi L. Understanding Marine Biodegradation of Bio-Based Oligoesters and Plasticizers. Polymers (Basel) 2023; 15:polym15061536. [PMID: 36987316 PMCID: PMC10054732 DOI: 10.3390/polym15061536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/08/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
The study reports the enzymatic synthesis of bio-based oligoesters and chemo-enzymatic processes for obtaining epoxidized bioplasticizers and biolubricants starting from cardoon seed oil. All of the molecules had MW below 1000 g mol-1 and were analyzed in terms of marine biodegradation. The data shed light on the effects of the chemical structure, chemical bond lability, thermal behavior, and water solubility on biodegradation. Moreover, the analysis of the biodegradation of the building blocks that constituted the different bio-based products allowed us to distinguish between different chemical and physicochemical factors. These hints are of major importance for the rational eco-design of new benign bio-based products. Overall, the high lability of ester bonds was confirmed, along with the negligible effect of the presence of epoxy rings on triglyceride structures. The biodegradation data clearly indicated that the monomers/building blocks undergo a much slower process of abiotic or biotic transformations, potentially leading to accumulation. Therefore, the simple analysis of the erosion, hydrolysis, or visual/chemical disappearance of the chemical products or plastic is not sufficient, but ecotoxicity studies on the effects of such small molecules are of major importance. The use of natural feedstocks, such as vegetable seed oils and their derivatives, allows the minimization of these risks, because microorganisms have evolved enzymes and metabolic pathways for processing such natural molecules.
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Affiliation(s)
- Federico Zappaterra
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Monia Renzi
- Department of Life Sciences, University of Trieste, Via L. Girgieri 10, 34127 Trieste, Italy
| | - Manuela Piccardo
- Department of Life Sciences, University of Trieste, Via L. Girgieri 10, 34127 Trieste, Italy
| | - Mariachiara Spennato
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Fioretta Asaro
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Martino Di Serio
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, 80126 Napoli, Italy
| | - Rosa Vitiello
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, 80126 Napoli, Italy
| | - Rosa Turco
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, 80126 Napoli, Italy
- Institute for Polymers, Composites and Biomaterials, National Council of Research, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Anamaria Todea
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Lucia Gardossi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
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42
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Biomethane Potential in Anaerobic Biodegradation of Commercial Bioplastic Materials. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9030261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Bioplastics have emerged as a promising alternative to conventional plastics, marketed as environmentally friendly and sustainable materials. They provide a variety of methods for efficient waste management contributing to the goals of the circular economy. At their end-of-life stage, bioplastics can generate added value through aerobic and anaerobic biological treatments (composting or anaerobic digestion). In this study, biomethane potential (BMP) tests were carried out under mesophilic conditions on eight different catering biodegradable plastics available in the market and certified as being biodegradable under industrial composting conditions. Chemical analysis of the biodegradable plastics included elemental analysis, Fourier-transform infrared spectroscopy, and inductively coupled plasma–optical emission spectrometry. Key differences were observed in total solids (TS) and volatile solids (VS) contents between the studied biopolymer products. TS values ranged between 85.00 ± 0.26% (Product 8) and 99.16 ± 0.23% (Product 4), whereas VS content ranged between 64.57 ± 0.25 %wm (Product 6) and 99.14 ± 0.17 %wm (Product 4). Elemental analysis (elements C, H, N, S, and O) was used to estimate the theoretical methane production (ThBMP) of each product. The highest ThBMP (538.6 ± 8.7 NmL/gVS) was observed in Product 4 correlated with the highest C and H contents, while the lowest ThBMP (431.8 ± 6.1 NmL/gVS) was observed in Product 2. Significant differences were recorded between BMP values according to the chemical composition of the polymers. The average of BMP values ranged between 50.4 ± 2.1 NmL/gVS and 437.5 ± 1.0 NmL/gVS. Despite being characterized by the same composition (cellulose/cellulose derivatives and calcium carbonate), Products 2, 3, and 6 revealed significant differences in terms of TS, VS, ThBMP, and BMP. Furthermore, a significant statistical relationship (p < 0.001) was found between time (days) and BMP values of the eight products (R2 = 0.899–0.964) during the initial phase. The study confirmed that cellulose-based materials can convert efficiently under mesophilic conditions into methane, at a relatively short retention time; hence, they can be regarded as a promising material for co-digestion with feedstock in industrial anaerobic biogas plants. In contrast, biodegradation of polylactic acids (PLA) does not occur under mesophilic conditions, and hence, pre-treatment of the polymers is recommended. Moreover, PLA-containing products are highly affected by the presence of other components (e.g., polybutylene adipate terephthalate and cellulose/cellulose derivatives).
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Porterfield KK, Hobson SA, Neher DA, Niles MT, Roy ED. Microplastics in composts, digestates, and food wastes: A review. JOURNAL OF ENVIRONMENTAL QUALITY 2023; 52:225-240. [PMID: 36645846 DOI: 10.1002/jeq2.20450] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Diverting food waste from landfills to composting or anaerobic digestion can reduce greenhouse gas emissions, enable the recovery of energy in usable forms, and create nutrient-rich soil amendments. However, many food waste streams are mixed with plastic packaging, raising concerns that food waste-derived composts and digestates may inadvertently introduce microplastics into agricultural soils. Research on the occurrence of microplastics in food waste-derived soil amendments is in an early phase and the relative importance of this potential pathway of microplastics to agricultural soils needs further clarification. In this paper, we review what is known and what is not known about the abundance of microplastics in composts, digestates, and food wastes and their effects on agricultural soils. Additionally, we highlight future research needs and suggest ways to harmonize microplastic abundance and ecotoxicity studies with the design of related policies. This review is novel in that it focuses on quantitative measures of microplastics in composts, digestates, and food wastes and discusses limitations of existing methods and implications for policy.
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Affiliation(s)
- Katherine K Porterfield
- Department of Civil and Environmental Engineering, University of Vermont, Burlington, VT, USA
- Gund Institute for Environment, University of Vermont, Burlington, VT, USA
| | - Sarah A Hobson
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT, USA
| | - Deborah A Neher
- Gund Institute for Environment, University of Vermont, Burlington, VT, USA
- Department of Plant and Soil Science, University of Vermont, Burlington, VT, USA
| | - Meredith T Niles
- Gund Institute for Environment, University of Vermont, Burlington, VT, USA
- Department of Nutrition and Food Sciences & Food Systems Program, University of Vermont, Burlington, VT, USA
| | - Eric D Roy
- Department of Civil and Environmental Engineering, University of Vermont, Burlington, VT, USA
- Gund Institute for Environment, University of Vermont, Burlington, VT, USA
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT, USA
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Marta H, Rizki DI, Mardawati E, Djali M, Mohammad M, Cahyana Y. Starch Nanoparticles: Preparation, Properties and Applications. Polymers (Basel) 2023; 15:polym15051167. [PMID: 36904409 PMCID: PMC10007494 DOI: 10.3390/polym15051167] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/11/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Starch as a natural polymer is abundant and widely used in various industries around the world. In general, the preparation methods for starch nanoparticles (SNPs) can be classified into 'top-down' and 'bottom-up' methods. SNPs can be produced in smaller sizes and used to improve the functional properties of starch. Thus, they are considered for the various opportunities to improve the quality of product development with starch. This literature study presents information and reviews regarding SNPs, their general preparation methods, characteristics of the resulting SNPs and their applications, especially in food systems, such as Pickering emulsion, bioplastic filler, antimicrobial agent, fat replacer and encapsulating agent. The aspects related to the properties of SNPs and information on the extent of their utilisation are reviewed in this study. The findings can be utilised and encouraged by other researchers to develop and expand the applications of SNPs.
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Affiliation(s)
- Herlina Marta
- Department of Food Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Bandung 45363, Indonesia
- Correspondence:
| | - Dina Intan Rizki
- Department of Food Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Efri Mardawati
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Bandung 45363, Indonesia
- Department of Agroindustrial Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Mohamad Djali
- Department of Food Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Masita Mohammad
- Solar Energy Research Institute (SERI), Universitas Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Yana Cahyana
- Department of Food Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
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Paul-Pont I, Ghiglione JF, Gastaldi E, Ter Halle A, Huvet A, Bruzaud S, Lagarde F, Galgani F, Duflos G, George M, Fabre P. Discussion about suitable applications for biodegradable plastics regarding their sources, uses and end of life. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 157:242-248. [PMID: 36577275 DOI: 10.1016/j.wasman.2022.12.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
This opinion paper offers a scientific view on the current debate of the place of biodegradable plastics as part of the solution to deal with the growing plastic pollution in the world's soil, aquatic, and marine compartments. Based on the current scientific literature, we focus on the current limits to prove plastic biodegradability and to assess the toxicity of commercially used biobased and biodegradable plastics in natural environments. We also discuss the relevance of biodegradable plastics for selected applications with respect to their use and end of life. In particular, we underlined that there is no universal biodegradability of plastics in any ecosystem, that considering the environment as a waste treatment system is not acceptable, and that the use of compostable plastics requires adaptation of existing organic waste collection and treatment channels.
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Affiliation(s)
- Ika Paul-Pont
- Univ Brest, Ifremer, CNRS, IRD, LEMAR, F-29280, Plouzané, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France.
| | - Jean-François Ghiglione
- CNRS, Sorbonne Université, Laboratoire d'Océanographie Microbienne (LOMIC), UMR 7621, Observatoire Océanologique de Banyuls, Banyuls sur mer, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Emmanuelle Gastaldi
- INRAE, Univ Montpellier, IATE, Montpellier, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Alexandra Ter Halle
- IMRCP, Université de Toulouse, CNRS, Toulouse, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Arnaud Huvet
- Univ Brest, Ifremer, CNRS, IRD, LEMAR, F-29280, Plouzané, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Stéphane Bruzaud
- Institut de Recherche Dupuy de Lôme (IRDL), Université Bretagne Sud, UMR CNRS 6027, Lorient, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Fabienne Lagarde
- Institut des Molécules et Matériaux du Mans (IMMM, UMR CNRS 6283), Le Mans Université, Avenue Olivier Messiaen, F-72085 Le Mans, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - François Galgani
- IFREMER/ RMPF, Tahiti, Polynésie Française; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Guillaume Duflos
- ANSES - Laboratoire de Sécurité des Aliments, Boulevard du Bassin Napoléon, F-62200, Boulogne-sur-Mer, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Matthieu George
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-UM, Place Eugène Bataillon, Montpellier, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
| | - Pascale Fabre
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-UM, Place Eugène Bataillon, Montpellier, France; GDR 2050 Polymères et Océans, CNRS, Université de Montpellier, France
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46
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Yu J, Zhang F, Mu G, Xu Y, Qu J, Zhang G, Lv Y, Jiang S, Qian F, Xia Y. Effect of nanocrystalline cellulose on mechanical, thermal, and barrier properties of polylactic acid blown composite film. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- Jie Yu
- Department of Food Science and Technology Dalian Polytechnic University Dalian People's Republic of China
| | - Feifei Zhang
- Department of Food Science and Technology Dalian Polytechnic University Dalian People's Republic of China
| | - Guangqing Mu
- Department of Food Science and Technology Dalian Polytechnic University Dalian People's Republic of China
| | - Yunpeng Xu
- Department of Food Science and Technology Dalian Polytechnic University Dalian People's Republic of China
| | - Junming Qu
- Department of Textile and Materials Engineering Dalian Polytechnic University Dalian People's Republic of China
| | - Guixia Zhang
- Department of Textile and Materials Engineering Dalian Polytechnic University Dalian People's Republic of China
| | - Yanna Lv
- Department of Light Industry and Chemical Engineering Dalian Polytechnic University Dalian People's Republic of China
| | - Shujuan Jiang
- Department of Food Science and Technology Dalian Polytechnic University Dalian People's Republic of China
| | - Fang Qian
- Department of Food Science and Technology Dalian Polytechnic University Dalian People's Republic of China
| | - Ying Xia
- Department of Textile and Materials Engineering Dalian Polytechnic University Dalian People's Republic of China
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47
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Kosheleva A, Gadaleta G, De Gisi S, Heerenklage J, Picuno C, Notarnicola M, Kuchta K, Sorrentino A. Co-digestion of food waste and cellulose-based bioplastic: From batch to semi-continuous scale investigation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 156:272-281. [PMID: 36521212 DOI: 10.1016/j.wasman.2022.11.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/03/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Only few studies on the behaviour of bioplastics in anaerobic co-digestion could be found in literature and most of them are conducted in batch mode. Despite the fact that continuous experiments confirm or add new insight to the findings acquired from batch ones, there is still lack of such studies. This work aims to cover this gap, carrying out a semi-continuous anaerobic co-digestion of food waste and cellulose acetate (which its behaviour under anaerobic environment is also quite unexplored). After a first evaluation of the potential methane production from each substrate at batch scale, the semi-continuous co-digestion of food waste and cellulose acetate was carried out in three configurations. During the semi-continuous process, a methane yield of 331 NmlCH4/gVS was generated from the co-digestion of food waste and cellulose acetate while bioplastics specimens achieved a weight loss of about 45 %. The results were both lower than the one obtained from batch co-digestion, although methane production rates were comparable regardless of being fed with or without bioplastics. An increase was registered after 65 days of semi-continuous process, due to the accumulation of CA specimens. This confirms the different degradation trends between bioplastics and food waste.
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Affiliation(s)
- Arina Kosheleva
- Hamburg University of Technology - Circular Resource Engineering and Management, Blohmstraße 15, D-21079 Hamburg, Germany
| | - Giovanni Gadaleta
- Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Politecnico di Bari, Via E. Orabona, 4, I-70125 Bari, Italy
| | - Sabino De Gisi
- Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Politecnico di Bari, Via E. Orabona, 4, I-70125 Bari, Italy.
| | - Joern Heerenklage
- Hamburg University of Technology - Circular Resource Engineering and Management, Blohmstraße 15, D-21079 Hamburg, Germany
| | - Caterina Picuno
- Hamburg University of Technology - Circular Resource Engineering and Management, Blohmstraße 15, D-21079 Hamburg, Germany
| | - Michele Notarnicola
- Department of Civil, Environmental, Land, Building Engineering and Chemistry (DICATECh), Politecnico di Bari, Via E. Orabona, 4, I-70125 Bari, Italy
| | - Kerstin Kuchta
- Hamburg University of Technology - Circular Resource Engineering and Management, Blohmstraße 15, D-21079 Hamburg, Germany
| | - Andrea Sorrentino
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council (CNR), P.le E. Fermi, 1, I-80055 Portici (Napoli), Italy
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Degradation of Bio-Based and Biodegradable Plastic and Its Contribution to Soil Organic Carbon Stock. Polymers (Basel) 2023; 15:polym15030660. [PMID: 36771962 PMCID: PMC9919936 DOI: 10.3390/polym15030660] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
Expanding the use of environmentally friendly materials to protect the environment is one of the key factors in maintaining a sustainable ecological balance. Poly(butylene succinate-co-adipate) (PBSA) is considered among the most promising bio-based and biodegradable plastics for the future with a high number of applications in soil and agriculture. Therefore, the decomposition process of PBSA and its consequences for the carbon stored in soil require careful monitoring. For the first time, the stable isotope technique was applied in the current study to partitioning plastic- and soil-originated C in the CO2 released during 80 days of PBSA decomposition in a Haplic Chernozem soil as dependent on nitrogen availability. The decomposition of the plastic was accompanied by the C loss from soil organic matter (SOM) through priming, which in turn was dependent on added N. Nitrogen facilitated PBSA decomposition and reduced the priming effect during the first 6 weeks of the experiment. During the 80 days of plastic decomposition, 30% and 49% of the released CO2 were PBSA-derived, while the amount of SOM-derived CO2 exceeded the corresponding controls by 100.2 and 132.3% in PBSA-amended soil without and with N fertilization, respectively. Finally, only 4.1% and 5.4% of the PBSA added into the soil was mineralized to CO2, in the treatments without and with N amendment, respectively.
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49
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Dehnou KH, Norouzi GS, Majidipour M. A review: studying the effect of graphene nanoparticles on mechanical, physical and thermal properties of polylactic acid polymer. RSC Adv 2023; 13:3976-4006. [PMID: 36756574 PMCID: PMC9891084 DOI: 10.1039/d2ra07011a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/11/2023] [Indexed: 01/28/2023] Open
Abstract
Polylactic acid (PLA) is a linear aliphatic polyester thermoplastic made from renewable sources such as sugar beet and cornstarch. Methods of preparation of polylactic acid are biological and chemical. The advantages of polylactic acid are biocompatibility, easily processing, low energy loss, transparency, high strength, resistance to water and fat penetration and low consumption of carbon dioxide during production. However, polylactic acid has disadvantages such as hydrophobicity, fragility at room temperature, low thermal resistance, slow degradation rate, permeability to gases, lack of active groups and chemical neutrality. To overcome the limitations of PLA, such as low thermal stability and inability to absorb gases, nanoparticles such as graphene are added to improve its properties. Extensive research has been done on the introduction of graphene nanoparticles in PLA, and all of these studies have been studied. In this study, we intend to study a comprehensive study of the effect of graphene nanoparticles on the mechanical, thermal, structural and rheological properties of PLA/Gr nanocomposites and also the effect of UV rays on the mechanical properties of PLA/Gr nanocomposites.
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Affiliation(s)
- Kianoush Hatami Dehnou
- Department of Materials Science and Engineering, School of Engineering, Shiraz University Shiraz Iran
| | - Ghazal Saki Norouzi
- Chemical Engineering Department, Faculty of Engineering, Razi University Iran
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50
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Liu X, Wang X, Wang R, Guo S, Ahmad S, Song Y, Gao P, Chen J, Liu C, Ding N. Effects comparison between the secondary nanoplastics released from biodegradable and conventional plastics on the transfer of antibiotic resistance genes between bacteria. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120680. [PMID: 36414161 DOI: 10.1016/j.envpol.2022.120680] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Antibiotic resistance genes (ARGs) have caused widespread concern because of their potential harm to environmental safety and human health. As substitutes for conventional plastics, the toxic effects of short-term degradation products of biodegradable plastics (polylactic acid (PLA) and polyhydroxyalkanoates (PHA)) on bacteria and their impact on ARGs transfer were the focus of this study. After 60 days of degradation, more secondary nanoplastics were released from the biodegradable plastics PLA and PHA than that from the conventional plastics polystyrene (PS). All kinds of nanoplastics, no matter released from biodegradable plastics or conventional plastics, had no significant toxicity to bacteria. Nanoplastic particles from biodegradable plastics could significantly increase the transfer efficiency of ARGs. Although the amount of secondary nanoplastics produced by PHA microplastics was much higher than that of PLA, the transfer frequency after exposure to PLA was much higher, which may be due to the agglomeration of PHA nanoplastics caused by plastic instability in solution. After exposure to the 60 d PLA nanoplastics, the transfer frequency was the highest, which was approximately 28 times higher than that of control. The biodegradable nanoplastics significantly enhanced the expression of the outer membrane pore protein genes ompA and ompC, which could increase cell membrane permeability. The expression levels of trfAp and trbBp were increased by repressed major global regulatory genes korA, korB, and trbA, which eventually led to an increase in conjugative transfer frequency. This study provides important insights into the evaluation of the environmental and health risks caused by secondary nanoplastics released from biodegradable plastics.
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Affiliation(s)
- Xiaomei Liu
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China.
| | - Xiaolong Wang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - RenJun Wang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Saisai Guo
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Shakeel Ahmad
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yuhao Song
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Peike Gao
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Junfeng Chen
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Chunchen Liu
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Ning Ding
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
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