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Yang J, Xu S, Ching YC, Chuah CH, Wang R, Li C, Wei Y, Liang G. Effects of silane hydrolysis time on the physicochemical properties of bioplastics based on starch and epoxidized soybean oil. Food Chem 2024; 460:140601. [PMID: 39089044 DOI: 10.1016/j.foodchem.2024.140601] [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: 03/18/2024] [Revised: 07/19/2024] [Accepted: 07/22/2024] [Indexed: 08/03/2024]
Abstract
This work investigated the effects of 3-aminopropyl triethoxy silane (APTES) hydrolysis time on the physicochemical properties of the resulting starch/epoxidized soybean oil (ESO) bioplastics comprehensively. FTIR analysis confirmed that APTES hydrolyzed for 4 h had the best modification effect on starch. The results of XRD and TGA demonstrated the successful silylation of starch by APTES despite hydrolysis time. Silylation treatment reduced the thermal stability of starch slightly, but enhanced the thermal stability of the resultant bioplastics, revealing better interaction between silylated starch and ESO. The interfacial adhesion of starch and ESO in the bioplastics was obviously enhanced when APTES was hydrolyzed for 2-24 h. The bioplastics with APTES hydrolyzed for 2-4 h showed more desirable tensile properties as the silane hydrolysis was complete and self-condensation of hydrolyzed silanes was avoided. The bioplastics containing silylated starch still showed superior opacity and biodegradability.
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Affiliation(s)
- Jianlei Yang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China.
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China
| | - Yern Chee Ching
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Rui Wang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China
| | - Chunhui Li
- College of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, China
| | - Yunwei Wei
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China
| | - Guoying Liang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China
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2
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Garcia-Garcia A, Muñana-González S, Lanceros-Mendez S, Ruiz-Rubio L, Alvarez LP, Vilas-Vilela JL. Biodegradable Natural Hydrogels for Tissue Engineering, Controlled Release, and Soil Remediation. Polymers (Basel) 2024; 16:2599. [PMID: 39339063 PMCID: PMC11435712 DOI: 10.3390/polym16182599] [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: 07/22/2024] [Revised: 09/06/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
This article provides insights into hydrogels of the most promising biodegradable natural polymers and their mechanisms of degradation, highlighting the different possibilities of controlling hydrogel degradation rates. Since biodegradable hydrogels can be designed as scaffolding materials to mimic the physical and biochemical properties of natural tissues, these hydrogels have found widespread application in the field of tissue engineering and controlled release. In the same manner, their potential as water reservoirs, macro- and microelement carriers, or matrixes for the selective adsorption of pollutants make them excellent candidates for sustainable soil amendment solutions. Accordingly, this article summarizes the recent advances in natural biodegradable hydrogels in the fields of tissue engineering, controlled release, and soil remediation, emphasizing the new opportunities that degradability and its tunability offer for the design and applicability of hydrogels.
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Affiliation(s)
- Ane Garcia-Garcia
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Sara Muñana-González
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Senentxu Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Leire Ruiz-Rubio
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leyre Perez Alvarez
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - José Luis Vilas-Vilela
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
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3
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Negrete-Bolagay D, Guerrero VH. Opportunities and Challenges in the Application of Bioplastics: Perspectives from Formulation, Processing, and Performance. Polymers (Basel) 2024; 16:2561. [PMID: 39339026 PMCID: PMC11434805 DOI: 10.3390/polym16182561] [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: 07/21/2024] [Revised: 08/09/2024] [Accepted: 08/17/2024] [Indexed: 09/30/2024] Open
Abstract
Tremendously negative effects have been generated in recent decades by the continuously increasing production of conventional plastics and the inadequate management of their waste products. This demands the production of materials within a circular economy, easy to recycle and to biodegrade, minimizing the environmental impact and increasing cost competitiveness. Bioplastics represent a sustainable alternative in this scenario. However, the replacement of plastics must be addressed considering several aspects along their lifecycle, from bioplastic processing to the final application of the product. In this review, the effects of using different additives, biomass sources, and processing techniques on the mechanical and thermal behavior, as well as on the biodegradability, of bioplastics is discussed. The importance of using bioplasticizers is highlighted, besides studying the role of surfactants, compatibilizers, cross-linkers, coupling agents, and chain extenders. Cellulose, lignin, starch, chitosan, and composites are analyzed as part of the non-synthetic bioplastics considered. Throughout the study, the emphasis is on the use of well-established manufacturing processes, such as extrusion, injection, compression, or blow molding, since these are the ones that satisfy the quality, productivity, and cost requirements for large-scale industrial production. Particular attention is also given to fused deposition modeling, since this additive manufacturing technique is nowadays not only used for making prototypes, but it is being integrated into the development of parts for a wide variety of biomedical and industrial applications. Finally, recyclability and the commercial requirements for bioplastics are discussed, and some future perspectives and challenges for the development of bio-based plastics are discussed, with the conclusion that technological innovations, economic incentives, and policy changes could be coupled with individually driven solutions to mitigate the negative environmental impacts associated with conventional plastics.
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Affiliation(s)
| | - Víctor H. Guerrero
- Department of Materials, Escuela Politécnica Nacional, Quito 170525, Ecuador;
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Linan LZ, Fakhouri FM, Nogueira GF, Zoppe J, Velasco JI. Benefits of Incorporating Lignin into Starch-Based Films: A Brief Review. Polymers (Basel) 2024; 16:2285. [PMID: 39204505 PMCID: PMC11359989 DOI: 10.3390/polym16162285] [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: 07/15/2024] [Revised: 08/03/2024] [Accepted: 08/10/2024] [Indexed: 09/04/2024] Open
Abstract
Polysaccharides are an excellent renewable source for developing food-packing materials. It is expected that these packages can be an efficient barrier against oxygen; can reduce lipid peroxidation, and can retain the natural aroma of a food commodity. Starch has tremendous potential to be explored in the preparation of food packaging; however, due to their high hydrophilic nature, packaging films produced from starch possess poor protective moisture barriers and low mechanical properties. This scenario limits their applications, especially in humid conditions. In contrast, lignin's highly complex aromatic hetero-polymer network of phenylpropane units is known to play a filler role in polysaccharide films. Moreover, lignin can limit the biodegradability of polysaccharides films by a physical barrier, mainly, and by non-productive bindings. The main interactions affecting lignin non-productive bindings are hydrophobic interactions, electrostatic interactions, and hydrogen-bonding interactions, which are dependent on the total phenolic -OH and -COOH content in its chemical structure. In this review, the use of lignin as a reinforcement to improve the biodegradability of starch-based films in wet environments is presented. Moreover, the characteristics of the used lignins, the mechanisms of molecular interaction among these materials, and the sensitive physicochemical parameters for biodegradability detection are related.
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Affiliation(s)
- Lamia Zuniga Linan
- Department of Chemical Engineering, Federal University of Maranhão (COEQ/UFMA), Av. dos Portugueses 1966, São Luis 65080-805, Brazil
| | - Farayde Matta Fakhouri
- Poly2 Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC Barcelona Tech), Carrer de Colom 11, 08222 Terrassa-Barcelona, Spain; (J.Z.); (J.I.V.)
| | | | - Justin Zoppe
- Poly2 Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC Barcelona Tech), Carrer de Colom 11, 08222 Terrassa-Barcelona, Spain; (J.Z.); (J.I.V.)
| | - José Ignacio Velasco
- Poly2 Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC Barcelona Tech), Carrer de Colom 11, 08222 Terrassa-Barcelona, Spain; (J.Z.); (J.I.V.)
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5
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Yang J, Xu S, Chee CY, Ching KY, Wei Y, Wang R, Al-Hada NM, Hock CC. Influence of starch silylation on the structures and properties of starch/epoxidized soybean oil-based bioplastics. Int J Biol Macromol 2024; 258:129037. [PMID: 38158061 DOI: 10.1016/j.ijbiomac.2023.129037] [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: 03/04/2023] [Revised: 12/12/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
The present work systematically investigated the influence of starch silylation on the structures and properties of starch/epoxidized soybean oil-based bioplastics. Silylated starch was synthesized using starch particles (SP-ST) or gelatinized starch (SG-ST) under different silane hydrolysis pHs. Due to the appearance of -NH2 groups and lower OH wavenumbers, SP-ST obtained at pH 5 showed higher silylation degree and stronger hydrogen bond interaction with epoxidized soybean oils (ESO) than that at pH 11. The morphology analysis revealed better interfacial compatibility of ESO and SP-ST. The tensile strength of the samples containing SP-ST increased by 51.91 % than the control, emphasizing the enhanced interaction within the bioplastics. However, tensile strength of the bioplastics with SG-ST decreased by 59.56 % due to their high moisture contents from unreacted silanes. Additionally, the bioplastics with SG-ST exhibited an obvious reduction of thermal stability and an increase in water solubility because of the presence of unreacted APMS. The bioplastic degradation was not prevented by starch silylation except high pH. The bioplastics showed the most desirable tensile properties, thermal stability, and water solubility when starch was surface-modified with silanes hydrolyzed at pH 5. These outcomes made the fabricated bioplastics strong candidates for petroleum-based plastics for packaging applications.
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Affiliation(s)
- Jianlei Yang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Ching Yern Chee
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Centre for Research in Biotechnology for Agriculture (CEBAR), University of Malaya, 50603 Kuala Lumpur, Malaysia; Centre of Industry Research 4.0 (CRI 4.0), University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Kuan Yong Ching
- University of Reading Malaysia, Kota Ilmu, Persiaran Graduan, Educity, 79200 Nusajaya, Johor, Malaysia
| | - Yunwei Wei
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Rui Wang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Naif Mohammed Al-Hada
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou, 253023, China
| | - Chuah Cheng Hock
- Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Salimi M, Channab BE, El Idrissi A, Zahouily M, Motamedi E. A comprehensive review on starch: Structure, modification, and applications in slow/controlled-release fertilizers in agriculture. Carbohydr Polym 2023; 322:121326. [PMID: 37839830 DOI: 10.1016/j.carbpol.2023.121326] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/20/2023] [Accepted: 08/21/2023] [Indexed: 10/17/2023]
Abstract
This comprehensive review thoroughly examines starch's structure, modifications, and applications in slow/controlled-release fertilizers (SRFs) for agricultural purposes. The review begins by exploring starch's unique structure and properties, providing insights into its molecular arrangement and physicochemical characteristics. Various methods of modifying starch, including physical, chemical, and enzymatic techniques, are discussed, highlighting their ability to impart desirable properties such as controlled release and improved stability. The review then focuses on the applications of starch in the development of SRFs. It emphasizes the role of starch-based hydrogels as effective nutrient carriers, enabling their sustained release to plants over extended periods. Additionally, incorporating starch-based hydrogel nano-composites are explored, highlighting their potential in optimizing nutrient release profiles and promoting plant growth. Furthermore, the review highlights the benefits of starch-based fertilizers in enhancing plant growth and crop yield while minimizing nutrient losses. It presents case studies and field trials demonstrating starch-based formulations' efficacy in promoting sustainable agricultural practices. Overall, this review consolidates current knowledge on starch, its modifications, and its applications in SRFs, providing valuable insights into the potential of starch-based formulations to improve nutrient management, boost crop productivity, and support sustainable agriculture.
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Affiliation(s)
- Mehri Salimi
- Soil Science Department, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Badr-Eddine Channab
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II University, Casablanca, B.P. 146, Morocco
| | - Ayoub El Idrissi
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II University, Casablanca, B.P. 146, Morocco
| | - Mohamed Zahouily
- Laboratory of Materials, Catalysis & Natural Resources Valorization, URAC 24, Faculty of Science and Technology, Hassan II University, Casablanca, B.P. 146, Morocco; Natural Resources Valorization Center, Moroccan Foundation for Advanced Science, Innovation and Research, Rabat, Morocco; Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Elaheh Motamedi
- Department of Nanotechnology, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
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7
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Wang W, Zhang W, Li L, Deng W, Liu M, Hu J. Biodegradable starch-based packaging films incorporated with polyurethane-encapsulated essential-oil microcapsules for sustained food preservation. Int J Biol Macromol 2023; 235:123889. [PMID: 36870661 DOI: 10.1016/j.ijbiomac.2023.123889] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/24/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
Novel starch-based packaging films with sustained antibacterial activity were successfully made by incorporating polyurethane-encapsulated essential-oil microcapsules (EOs@PU) as an alternative synthetic preservative for food preservation. Herein, three essential oils (EOs) were blended to make composite essential oils with a more harmonious aroma and higher antibacterial ability and encapsulated into polyurethane (PU) to form EOs@PU microcapsules based on interfacial polymerization. The morphology of the constructed EOs@PU microcapsules was regular and uniform with an average size of approximately 3 μm, thus enabling high loading capacity (59.01 %). As such, we further integrated the obtained EOs@PU microcapsules into potato starch to prepare food packaging films for sustained food preservation. Consequently, the prepared starch-based packaging films incorporated with EOs@PU microcapsules had an excellent UV blocking rate (>90 %) and low cell toxicity. Notably, the long-term release of EOs@PU microcapsules gave the packaging films a sustained antibacterial ability, prolonging the shelf life of fresh blueberries and raspberries at 25 °C (> 7 days). Furthermore, the biodegradation rate of food packaging films cultured with natural soil was 95 % after 8 days, clarifying the excellent biodegradability of the packaging films for environmental protection. As demonstrated, the biodegradable packaging films provided a natural and safe strategy for food preservation.
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Affiliation(s)
- Wei Wang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China
| | - Weiwei Zhang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China
| | - Lin Li
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China
| | - Weijun Deng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 201418 Shanghai, China
| | - Ming Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China.
| | - Jing Hu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China.
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8
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Xu N, Huang Q, Shi L, Wang J, Li X, Guo W, Yan D, Ni T, Yang Z, Yan Y. A bioinspired polydopamine-FeS nanocomposite with high antimicrobial efficiency via NIR-mediated Fenton reaction. Dalton Trans 2023; 52:1687-1701. [PMID: 36649112 DOI: 10.1039/d2dt03765c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Ferrous and sulfur ions are essential elements for the human body, which play an active role in maintaining the body's normal physiology. Meanwhile, mussel-inspired polydopamine (PDA) possesses good hydrophilicity and biocompatibility. In the present work, ferrous sulfide embedded into polydopamine nanoparticles (PDA@FeS NPs) was designed and synthesized via a simple predoping polymerization-coprecipitation strategy and the intelligent PDA matrix successfully prevented the oxidation and agglomeration of FeS nanoparticles. Importantly, there was an obvious synergistic enhancement of the photothermal effect between polydopamine and ferrous sulfide. The PDA@FeS NPs exhibited excellent photothermal antibacterial effects against both E. coli and S. aureus. The near-infrared (NIR) light-mediated release of ferrous ions could reach about 26.5% under weakly acidic conditions, further triggering the Fenton reaction to produce toxic hydroxyl radicals (·OH) in the presence of hydrogen peroxide. The antibacterial mechanism could be attributed to cell membrane damage and cellular content leakage with the synergistic effect of PTT and CDT. This study highlighted the germicidal efficacy of PDA@FeS NPs and provided a new strategy for designing and developing next-generation antibacterial platforms.
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Affiliation(s)
- Na Xu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Qianqian Huang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Li Shi
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Jia Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Xiangrong Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Wei Guo
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Dong Yan
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Tianjun Ni
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Zhijun Yang
- Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
| | - Yunhui Yan
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China. .,Xinxiang Engineering Research Center for Functional Nanomedicine Materials, Xinxiang Medical University, Xinxiang, Henan 453003, China.
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França D, Siqueira G, Nyström G, Clemens F, Souza CF, Faez R. Charged-cellulose nanofibrils as a nutrient carrier in biodegradable polymers for enhanced efficiency fertilizers. Carbohydr Polym 2022; 296:119934. [PMID: 36087985 DOI: 10.1016/j.carbpol.2022.119934] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/02/2022]
Abstract
An enhanced efficiency fertilizer (EEF) is essential for sustainable agriculture, and here, we evaluated cellulose nanofibrils (CNF) as a nutrient carrier dispersed in biodegradable polymeric matrices. CNF were functionalized with negative (CNF-) and positive (CNF+) charges to improve (i) the CNF-nutrient and (ii) the CNF-polymeric matrix interactions. The CNF encapsulated the KNO3 nutrient by spray drying (microcapsules) and then inserted into a poly (hydroxybutyrate)/starch-based matrix by melt-compounding (tablets). These materials were morphologically, structurally, and thermally characterized before and after biodegradation. Nutrient release profiles showed the microcapsules released the nutrients for up to 1 h, while the tablets did for 8 h in water and over 80 days in soil. Tablets with CNF- released NO3- faster than K+, and those with CNF+ behaved inversely. Besides, the biodegradation efficiencies were up to 75 % in 120 days. The CNF charges affected nutrient release and the matrix biodegradation, ensuring the matrices were harmless to the environment.
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Affiliation(s)
- Débora França
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, Rod. Anhanguera, km 174, Araras, SP 13600970, Brazil; Graduate Program in Materials Science and Engineering, University of São Paulo, USP-FZEA, Pirassununga, SP 13635900, Brazil.
| | - Gilberto Siqueira
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Cellulose & Wood Materials Laboratory, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Gustav Nyström
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Cellulose & Wood Materials Laboratory, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland; Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland.
| | - Frank Clemens
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for High Performance Ceramics, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Claudinei Fonseca Souza
- Research Group on Water, Soil and Environment Engineering, Federal University of São Carlos, UFSCar, Rod. Anhanguera, km 174, Araras, SP, 13600970, Brazil
| | - Roselena Faez
- Laboratory of Polymeric Materials and Biosorbents, Federal University of São Carlos, UFSCar, Rod. Anhanguera, km 174, Araras, SP 13600970, Brazil; Graduate Program in Materials Science and Engineering, University of São Paulo, USP-FZEA, Pirassununga, SP 13635900, Brazil.
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10
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Synthesis of Starch-Grafted Polymethyl Methacrylate via Free Radical Polymerization Reaction and Its Application for the Uptake of Methylene Blue. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185844. [PMID: 36144579 PMCID: PMC9503754 DOI: 10.3390/molecules27185844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/05/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022]
Abstract
In this research, a new biodegradable and eco-friendly adsorbent, starch-grafted polymethyl methacrylate (St-g-PMMA) was synthesized. The St-g-PMMA was synthesized by a free radical polymerization reaction in which methyl methacrylate (MMA) was grafted onto a starch polymer chain. The reaction was performed in water in the presence of a potassium persulfate (KPS) initiator. The structure and different properties of the St-g-PMMA was explored by FT-IR, 1H NMR, TGA, SEM and XRD. After characterization, the St-g-PMMA was used for the removal of MB dye. Different adsorption parameters, such as effect of adsorbent dose, effect of pH, effect of initial concentration of dye solution, effect of contact time and comparative adsorption study were investigated. The St-g-PMMA showed a maximum removal percentage (R%) of 97% towards MB. The other parameters, such as the isothermal and kinetic models, were fitted to the experimental data. The results showed that the Langmuir adsorption and pseudo second order kinetic models were best fitted to experimental data with a regression coefficient of R2 = 0.93 and 0.99, respectively.
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11
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New Model High Temperature Pasting Analysis of Fermented Cassava Granules. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8020089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cassava is a starchy food item eaten by millions worldwide in various forms. The product has been subjected to various analysis forms, including the viscosity capacity of different flours made from the product. In this study, cassava granules (Garri) were subjected to scanning electron microscopy (SEM) and laser diffraction particle size analysis to determine microstructure, after which the viscosity behavior was ascertained under high pressure with the new model high-temperature rapid viscosity analyzer (RVA HT 4800), which is capable of reaching a maximum of 140 °C. Viscosity comparisons were then made with the profiles obtained at 95 °C and 140 °C. The microstructure had intact starch cells and was free of extraneous materials or fungal hyphae. The granule size range was found to be 1–1800 µM. It was established that the holding, final, and setback viscosities were most affected and decreased by at least 80% when the samples were subjected to the 140 °C HT profile. The peak time at 95 °C in yellow and white Garri samples of both brands averaged nine minutes, whereas it was 5 min at 140 °C profile. The white Garri samples tolerated the high temperature better based on breakdown viscosity values and may be used for making food products that require tolerance to high temperatures. An opportunity exists to re-evaluate different Garri varieties with the new model RVA to establish behavior at very high temperatures.
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12
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Su CY, Li D, Wang LJ, Wang Y. Biodegradation behavior and digestive properties of starch-based film for food packaging - a review. Crit Rev Food Sci Nutr 2022; 63:6923-6945. [PMID: 35142240 DOI: 10.1080/10408398.2022.2036097] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Non-degradable plastic places a serious burden on the environment, so consumers and researchers are working to develop biodegradable, safe, and sustainable food packaging materials. The starch-based film has become emerging material for food packaging. Not only does it shows excellent physicochemical properties, but also provides the desired degradation characteristics after use or the digestive properties after consumption, thus needing to comprehensively evaluate the quality of starch-based food packaging materials. This review summarizes the degradation behavior of the starch-based film in different degradation environments, and compares the suitability of degradation environments. Besides, the physicochemical properties of the composite or blend film during the degradation process were further discussed. The factors affecting the digestibility of starch-based edible film were reviewed and analyzed. Finally, the application and the future trend of the biodegradable starch-based film in the food packaging field were proposed. Future studies should combine and evaluate the physical properties and biodegradability of the composite/blend film, to develop food packaging materials with good characteristics and biodegradability.
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Affiliation(s)
- Chun-Yan Su
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, Beijing, China
| | - Dong Li
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, Beijing, China
| | - Li-Jun Wang
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing, China
| | - Yong Wang
- School of Chemical Engineering, University of New South Wales, Kensington, New South Wales, Australia
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13
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Maćczak P, Kaczmarek H, Ziegler-Borowska M, Węgrzynowska-Drzymalska K, Burkowska-But A. The Use of Chitosan and Starch-Based Flocculants for Filter Backwash Water Treatment. MATERIALS 2022; 15:ma15031056. [PMID: 35161001 PMCID: PMC8838026 DOI: 10.3390/ma15031056] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 11/16/2022]
Abstract
Inorganic aluminum or iron salts supported with synthetic polymers are commonly used to eradicate colloidal particles from water in coagulation and flocculation processes. Nevertheless, these agents have several disadvantages, such as large volumes of sludge produced or environmental toxicity. Recently biodegradable polymers have been suggested as eco-friendly flocculants for water treatment. This study aimed to investigate the possibilities of using starch and chitosan and their oxidized derivatives as flocculants for filter backwash water treatment. Dialdehyde starch (DST) and dialdehyde chitosan (DCT) were synthesized by periodate oxidization of natural starch from corn and low molecular weight chitosan. The obtained materials have been characterized with scanning electron microscopy (SEM), ATR-FTIR spectroscopy, and thermogravimetric analysis (TGA). Furthermore, we studied the flocculation properties of polysaccharide flocculants in a series of jar tests. The effectiveness of chitosan and starched-based flocculants was compared to synthetic polymers commonly used to treat iron ions-rich filter backwash water. The environmental aspects of these chemicals, particularly the biodegradability of post-flocculation residues, were also addressed. It was found that oxidized starch and chitosan derivatives can be used as ecological flocculating materials to treat potable water or sludge.
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Affiliation(s)
- Piotr Maćczak
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Torun, Poland; (M.Z.-B.); (K.W.-D.)
- Water Supply and Sewage Enterprise LLC, Przemysłowa 4, 99-300 Kutno, Poland
- Correspondence: (P.M.); (H.K.)
| | - Halina Kaczmarek
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Torun, Poland; (M.Z.-B.); (K.W.-D.)
- Correspondence: (P.M.); (H.K.)
| | - Marta Ziegler-Borowska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Torun, Poland; (M.Z.-B.); (K.W.-D.)
| | | | - Aleksandra Burkowska-But
- Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Torun, Poland;
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14
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Biopolymers: Global Carbon Footprint and Climate Change. Biopolymers 2022. [DOI: 10.1007/978-3-030-98392-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Tedeschi AM, Di Caprio F, Piozzi A, Pagnanelli F, Francolini I. Sustainable Bioactive Packaging Based on Thermoplastic Starch and Microalgae. Int J Mol Sci 2021; 23:ijms23010178. [PMID: 35008606 PMCID: PMC8745059 DOI: 10.3390/ijms23010178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/11/2022] Open
Abstract
This study combines the use of corn starch and Tetradesmus obliquus microalgae for the production of antioxidant starch films as flexible packaging material. Starch was plasticized with glycerol and blended with 1 w% polyallylamine chosen as an agent to modify the film physical properties. The addition of polyallylamine improved film water stability and water vapor transmission rate as well as mechanical stiffness and tenacity. The dried Tetradesmus obliquus microalgae, which showed an EC50 value of 2.8 mg/mg DPPH (2.2-Diphenyl-1-picrylhydrazyl radical), was then used as antioxidant filler. The addition of microalgae provided the films with good antioxidant activity, which increased with microalgae content increasing. To our knowledge, this is the first study reporting the development of sustainable bioactive packaging films composed of almost 100% starch, and follows the European union's goals on plastics strategy concerning the promotion of bio-based, compostable plastics and the setting up of approaches to prevent food waste with a simple plastic packaging.
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16
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Sarma A, Das MK. Improving the sustainable performance of Biopolymers using nanotechnology. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1937645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Anupam Sarma
- Department of Pharmaceutics, Girijananda Chowdhury Institute of Pharmaceutical Science, Guwahati, Assam, India
| | - Malay K Das
- Drug Delivery Research Laboratory, Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, Assam, India
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17
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Polman EMN, Gruter GJM, Parsons JR, Tietema A. Comparison of the aerobic biodegradation of biopolymers and the corresponding bioplastics: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:141953. [PMID: 32896737 DOI: 10.1016/j.scitotenv.2020.141953] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/21/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
Biodegradable plastics made from biopolymers (made in nature) or from bio-based polymers (made in a factory) are becoming increasingly important in replacing the massive amounts of conventional, non-degradable fossil-based plastics that have been produced and disposed over the past decades. In this review we compare the biodegradation rates and mechanisms of the bioplastics thermoplastic starch, cellulose acetate and lignin based bioplastics with the biodegradation rates and mechanisms of starch, cellulose and lignin, which are the unmodified biopolymers from which these bioplastics are produced. With this comparison we aim to determine to what extent the extensive knowledge on unmodified biopolymer biodegradation can be applied to the biodegradation of bioplastics (modified biopolymers) in the terrestrial environment. This knowledge is important, since it can be of great help in giving direction to the future research and development of bioplastics and for the development of bioplastic waste assessments and policies. We found that the similarities and differences in biodegradation are dependent on the structural changes imposed on a biopolymer during the bioplastic production process. A change in higher level structure, as found in thermoplastic starch, only resulted in a limited number of differences in the biodegradation process. However, when the chemical structure of a polymer is changed, as for cellulose acetate, different microorganisms and enzymes are involved in the biodegradation. Based on the cellulose acetate biodegradation process, a conceptual model was proposed that can be used as a starting point in predicting biodegradation rates of other chemically modified biopolymers used as bioplastics. Future bioplastic biodegradation research should focus on conducting long-term field experiments, since most studies are conducted in a laboratory setting and do not capture all processes occurring in the field situation. This applies even more to lignin based bioplastics, since very little experimental data were available on modified lignin biopolymer biodegradation.
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Affiliation(s)
- Emma M N Polman
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands.
| | - Gert-Jan M Gruter
- Van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands
| | - John R Parsons
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands
| | - Albert Tietema
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, the Netherlands
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18
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The effect of natural fillers on the marine biodegradation behaviour of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). Sci Rep 2021; 11:911. [PMID: 33441581 PMCID: PMC7806601 DOI: 10.1038/s41598-020-78122-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/12/2020] [Indexed: 12/04/2022] Open
Abstract
Worldwide, improper disposal of plastics is instigating environmental initiatives to combat plastics accumulation of in the environment and the world’s oceans. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) biocomposites with Miscanthus (Misc) fibres and distillers’ dried grains with solubles (DDGS) were studied to ascertain if natural fibres and proteinaceous fillers can improve polyhydroxyalkanoate marine biodegradability. Using ASTM standard D7991-15, the biodegradation of PHBV, PHBV with Misc (15 and 25 wt%) and PHBV with DDGS (15 and 25 wt%) was performed in a simulated marine environment for the first time, as indicated by a literature survey. PHBV/Misc (85/15) and (75/25) biocomposites showed 15 and 25% more biodegradation compared to PHBV, respectively. Proteinaceous PHBV/DDGS (85/15) and (75/25) biocomposites showed 17 and 40% more biodegradation compared to PHBV, respectively. Furthermore, PHBV/Misc (75/25) and PHBV/DDGS (75/25) biocomposites were marine biodegraded in 412 and 295 days, respectively. In conclusion, proteinaceous fillers (DDGS) biocomposites have better marine biodegradability than miscanthus.
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19
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Biodegradation of Wasted Bioplastics in Natural and Industrial Environments: A Review. SUSTAINABILITY 2020. [DOI: 10.3390/su12156030] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The problems linked to plastic wastes have led to the development of biodegradable plastics. More specifically, biodegradable bioplastics are the polymers that are mineralized into carbon dioxide, methane, water, inorganic compounds, or biomass through the enzymatic action of specific microorganisms. They could, therefore, be a suitable and environmentally friendly substitute to conventional petrochemical plastics. The physico-chemical structure of the biopolymers, the environmental conditions, as well as the microbial populations to which the bioplastics are exposed to are the most influential factors to biodegradation. This process can occur in both natural and industrial environments, in aerobic and anaerobic conditions, with the latter being the least researched. The examined aerobic environments include compost, soil, and some aquatic environments, whereas the anaerobic environments include anaerobic digestion plants and a few aquatic habitats. This review investigates both the extent and the biodegradation rates under different environments and explores the state-of-the-art knowledge of the environmental and biological factors involved in biodegradation. Moreover, the review demonstrates the need for more research on the long-term fate of bioplastics under natural and industrial (engineered) environments. However, bioplastics cannot be considered a panacea when dealing with the elimination of plastic pollution.
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20
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Liu K, Huang RL, Zha XQ, Li QM, Pan LH, Luo JP. Encapsulation and sustained release of curcumin by a composite hydrogel of lotus root amylopectin and chitosan. Carbohydr Polym 2020; 232:115810. [DOI: 10.1016/j.carbpol.2019.115810] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/14/2019] [Accepted: 12/29/2019] [Indexed: 12/25/2022]
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21
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Abstract
The substitution of petroleum-based synthetic polymers in latex formulations with sustainable and/or bio-based sources has increasingly been a focus of both academic and industrial research. Emulsion polymerization already provides a more sustainable way to produce polymers for coatings and adhesives, because it is a water-based process. It can be made even more attractive as a green alternative with the addition of starch, a renewable material that has proven to be extremely useful as a filler, stabilizer, property modifier and macromer. This work provides a critical review of attempts to modify and incorporate various types of starch in emulsion polymerizations. This review focusses on the method of initiation, grafting mechanisms, starch feeding strategies and the characterization methods. It provides a needed guide for those looking to modify starch in an emulsion polymerization to achieve a target grafting performance or to incorporate starch in latex formulations for the replacement of synthetic polymers.
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22
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Laycock B, Nikolić M, Colwell JM, Gauthier E, Halley P, Bottle S, George G. Lifetime prediction of biodegradable polymers. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.02.004] [Citation(s) in RCA: 301] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Jumaidin R, Sapuan SM, Jawaid M, Ishak MR, Sahari J. Effect of seaweed on mechanical, thermal, and biodegradation properties of thermoplastic sugar palm starch/agar composites. Int J Biol Macromol 2017; 99:265-273. [PMID: 28249765 DOI: 10.1016/j.ijbiomac.2017.02.092] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 02/23/2017] [Accepted: 02/25/2017] [Indexed: 11/26/2022]
Abstract
The aim of this paper is to investigate the characteristics of thermoplastic sugar palm starch/agar (TPSA) blend containing Eucheuma cottonii seaweed waste as biofiller. The composites were prepared by melt-mixing and hot pressing at 140°C for 10min. The TPSA/seaweed composites were characterized for their mechanical, thermal and biodegradation properties. Incorporation of seaweed from 0 to 40wt.% has significantly improved the tensile, flexural, and impact properties of the TPSA/seaweed composites. Scanning electron micrograph of the tensile fracture showed homogeneous surface with formation of cleavage plane. It is also evident from TGA results that thermal stability of the composites were enhanced with addition of seaweed. After soil burial for 2 and 4 weeks, the biodegradation of the composites was enhanced with addition of seaweed. Overall, the incorporation of seaweed into TPSA enhances the properties of TPSA for short-life product application such as tray, plate, etc.
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Affiliation(s)
- Ridhwan Jumaidin
- Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Department of Structure and Material, Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
| | - Salit M Sapuan
- Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia; Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia.
| | - Mohammad Jawaid
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Mohamad R Ishak
- Department of Aerospace Engineering, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Japar Sahari
- Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
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24
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Emadian SM, Onay TT, Demirel B. Biodegradation of bioplastics in natural environments. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 59:526-536. [PMID: 27742230 DOI: 10.1016/j.wasman.2016.10.006] [Citation(s) in RCA: 363] [Impact Index Per Article: 51.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 10/05/2016] [Accepted: 10/05/2016] [Indexed: 05/18/2023]
Abstract
The extensive production of conventional plastics and their use in different commercial applications poses a significant threat to both the fossil fuels sources and the environment. Alternatives called bioplastics evolved during development of renewable resources. Utilizing renewable resources like agricultural wastes (instead of petroleum sources) and their biodegradability in different environments enabled these polymers to be more easily acceptable than the conventional plastics. The biodegradability of bioplastics is highly affected by their physical and chemical structure. On the other hand, the environment in which they are located, plays a crucial role in their biodegradation. This review highlights the recent findings attributed to the biodegradation of bioplastics in various environments, environmental conditions, degree of biodegradation, including the identified bioplastic-degrading microorganisms from different microbial communities.
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Affiliation(s)
- S Mehdi Emadian
- Institute of Environmental Sciences, Boğazici University, Bebek, Istanbul 34342, Turkey
| | - Turgut T Onay
- Institute of Environmental Sciences, Boğazici University, Bebek, Istanbul 34342, Turkey.
| | - Burak Demirel
- Institute of Environmental Sciences, Boğazici University, Bebek, Istanbul 34342, Turkey
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25
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Characteristics of thermoplastic sugar palm Starch/Agar blend: Thermal, tensile, and physical properties. Int J Biol Macromol 2016; 89:575-81. [DOI: 10.1016/j.ijbiomac.2016.05.028] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/20/2016] [Accepted: 05/09/2016] [Indexed: 11/21/2022]
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26
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Ramírez-Hernández A, Mata-Mata JL, Aparicio-Saguilán A, González-García G, Hernández-Mendoza H, Gutiérrez-Fuentes A, Báez-García E. The effect of ethylene glycol on starch-g-PCL graft copolymer synthesis. STARCH-STARKE 2016. [DOI: 10.1002/star.201600070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - José L. Mata-Mata
- Exact Sciences Division, Department of Chemistry; University of Guanajuato; Guanajuato México
| | | | - Gerardo González-García
- Exact Sciences Division, Department of Chemistry; University of Guanajuato; Guanajuato México
| | - Héctor Hernández-Mendoza
- Laboratorio Nacional de Investigaciones en Forense Nuclear (LANAFONU). Instituto Nacional de Investigaciones Nucleares (ININ), Carretera México-Toluca S/N 52750; La Marquesa Ocoyoacac; Estado de México México
| | | | - Eduardo Báez-García
- Exact Sciences Division, Department of Chemistry; University of Guanajuato; Guanajuato México
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27
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Zhang W, Chen J, Chen Y, Xia W, Xiong YL, Wang H. Enhanced physicochemical properties of chitosan/whey protein isolate composite film by sodium laurate-modified TiO 2 nanoparticles. Carbohydr Polym 2016; 138:59-65. [DOI: 10.1016/j.carbpol.2015.11.031] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 11/07/2015] [Accepted: 11/11/2015] [Indexed: 11/27/2022]
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28
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Shah U, Naqash F, Gani A, Masoodi FA. Art and Science behind Modified Starch Edible Films and Coatings: A Review. Compr Rev Food Sci Food Saf 2016; 15:568-580. [DOI: 10.1111/1541-4337.12197] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 01/12/2016] [Accepted: 01/13/2016] [Indexed: 10/22/2022]
Affiliation(s)
- Umar Shah
- Dept. of Food Science and Technology; Univ. of Kashmir; Jammu and Kashmir India
| | - Farah Naqash
- Dept. of Food Science and Technology; Univ. of Kashmir; Jammu and Kashmir India
| | - Adil Gani
- Dept. of Food Science and Technology; Univ. of Kashmir; Jammu and Kashmir India
| | - F. A. Masoodi
- Dept. of Food Science and Technology; Univ. of Kashmir; Jammu and Kashmir India
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29
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Kumar S, Maiti P. Controlled biodegradation of polymers using nanoparticles and its application. RSC Adv 2016. [DOI: 10.1039/c6ra08641a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Controlled biodegradation mechanism has been revealed using different nanoparticles which eventually regulate pH of media.
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Affiliation(s)
- Sunil Kumar
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221 005
- India
| | - Pralay Maiti
- School of Materials Science and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221 005
- India
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30
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Flanagan BM, Gidley MJ, Warren FJ. Rapid quantification of starch molecular order through multivariate modelling of13C CP/MAS NMR spectra. Chem Commun (Camb) 2015; 51:14856-8. [DOI: 10.1039/c5cc06144j] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A partial least squares model has been generated enabling the rapid assessment of ordered molecular structure in a semi-crystalline polymer, starch, directly from solid state NMR spectra.
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Affiliation(s)
- Bernadine M. Flanagan
- Centre for Nutrition and Food Sciences
- ARC Centre of Excellence in Plant Cell Walls
- Queensland Alliance Agriculture and Food Innovation
- The University of Queensland
- St Lucia
| | - Michael J. Gidley
- Centre for Nutrition and Food Sciences
- ARC Centre of Excellence in Plant Cell Walls
- Queensland Alliance Agriculture and Food Innovation
- The University of Queensland
- St Lucia
| | - Frederick J. Warren
- Centre for Nutrition and Food Sciences
- ARC Centre of Excellence in Plant Cell Walls
- Queensland Alliance Agriculture and Food Innovation
- The University of Queensland
- St Lucia
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