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Visentin A, Murphy CD, Alvarado-Morales M, Angelidaki I, Sweeney JB. Escherichia coli-based biorefining process yields optically pure lactic acid from fermented second-generation feedstocks. N Biotechnol 2024; 83:155-162. [PMID: 39128541 DOI: 10.1016/j.nbt.2024.08.498] [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: 02/22/2024] [Revised: 06/17/2024] [Accepted: 08/08/2024] [Indexed: 08/13/2024]
Abstract
Within the circular bioeconomy the production of optically pure LA from 2nd generation feedstocks would be ideal but it is very challenging. In this paper genetically engineered Escherichia coli strains were created to resolve racemic LA solutions synthesised and produced from the fermentation of organic waste or ensiled grass. Refining LA racemic mixtures into either a D- or L-LA was achieved by cells being able to consume one LA isomer as a sole carbon and energy source while not being able to consume the other. A D-LA refining strain JSP0005 was grown on fermented source-sorted organic household waste and different grass silage leachates, which are 2nd generation feedstocks containing up to 33 g/L lactic acid racemate. In all growth experiments, L-LA was completely removed leaving D-LA as the only LA stereoisomer, i.e. resulting in optically pure D-LA, which also increased by as much as 248.6 % from its starting concentration, corresponding to 38 g/L. The strains resulting from this study are a promising first step towards a microbial based LA biorefining process.
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Affiliation(s)
- Anna Visentin
- UCD School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Cormac D Murphy
- UCD School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland; UCD Conway Institute, University College Dublin, Dublin 4, Ireland.
| | - Merlin Alvarado-Morales
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
| | - Irini Angelidaki
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
| | - Joseph B Sweeney
- UCD School of Biosystems and Food Engineering, University College Dublin, Belfield, Dublin 4, Ireland.
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2
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Avelino F, de Andrade Felipe VT, Dias MT, de Novais LMR, D'Oca CDRM, Neto FPM, Soares AK, Magalhães WLE, Mazzetto SE, Lomonaco D. Unraveling the structural aspects of microwave-assisted OrganoCat-based coconut shell lignins: An eco-friendly route for obtaining bio-based antioxidants. Int J Biol Macromol 2024; 274:133349. [PMID: 38925179 DOI: 10.1016/j.ijbiomac.2024.133349] [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: 06/28/2023] [Revised: 05/21/2024] [Accepted: 06/20/2024] [Indexed: 06/28/2024]
Abstract
New routes for biomass valorization have been developing by the scientific community. The aim of this work was developing a novel OrganoCat-based protocol and deeply understand the structure of the obtained lignins. Microwave-assisted OrganoCat-based process was performed using a biphasic system (ethyl acetate and oxalic acid or HCl) at mild conditions. OrganoCat-based lignins (OCLs) were characterized by compositional analysis, FTIR, 1H, 13C, 1H13C HSQC, 31P NMR, TGA and GPC. The solubility of OCLs in different organic solvents and their antioxidant capacity against DPPH were investigated. The spectroscopic analyses showed that OCLs have high residual extractives and the lignin motifs were preserved. OCLs have presented lower thermal stability than MWL, but showed great antioxidant activities and high solubility in a wide range of organic solvents. A novel biorefinery protocol yielded coconut shell lignins with peculiar structural and compositional features and several technological applications through an eco-friendly, sustainable and relatively low-cost biphasic pulping process.
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Affiliation(s)
- Francisco Avelino
- Department of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil.
| | - Vinícius Taveira de Andrade Felipe
- Department of Chemistry and Environment, Federal Institute of Education, Science and Technology of Ceará, 61939-140, Maracanaú, CE, Brazil
| | - Matheus Teixeira Dias
- Department of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil
| | | | | | | | - Aline Krolow Soares
- NMR Lab, Department of Chemistry, Federal University of Paraná, 81530-900 Curitiba, PR, Brazil; Embrapa Forestry, 83411-000 Colombo, PR, Brazil
| | | | - Selma E Mazzetto
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, 60440-900 Fortaleza, CE, Brazil
| | - Diego Lomonaco
- Department of Organic and Inorganic Chemistry, Federal University of Ceara, 60440-900 Fortaleza, CE, Brazil
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3
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Blay-Roger R, Saif M, Bobadilla LF, Ramirez-Reina T, Nawaz MA, Odriozola JA. Embracing the sustainable horizons through bioenergy innovations: a path to a sustainable energy future. Front Chem 2024; 12:1416102. [PMID: 39139918 PMCID: PMC11319156 DOI: 10.3389/fchem.2024.1416102] [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: 04/11/2024] [Accepted: 07/11/2024] [Indexed: 08/15/2024] Open
Abstract
The urgent need for mitigating climate change necessitates a transformative shift in energy production and consumption paradigms. Amidst this challenge, bioenergy emerges as a pivotal contributor to the global energy transition, offering a diverse array of solid, liquid, and gaseous fuels derived from biomass. This mini review delves into the unique potential of bioenergy innovations, particularly renewable diesel, bio jet fuel, and ethanol, to reduce greenhouse gas emissions and transform various industries. The article highlights critical technological advancements, supportive policies, and cross-sector collaboration essential for a sustainable energy transition. Specific challenges such as ensuring a consistent biomass feedstock supply, decentralizing processing units, and navigating complex regulatory frameworks are examined. Innovative solutions like decentralized biomass processing and enhanced biomass logistics are discussed as pathways to overcome these barriers. The review provides specific recommendations for near-term policies and strategies to support decentralized facilities, showcasing bioenergy's role in achieving a sustainable future.
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Affiliation(s)
| | | | | | | | - Muhammad Asif Nawaz
- Department of Inorganic Chemistry and Materials Sciences Institute, University of Seville-CSIC, Seville, Spain
| | - José Antonio Odriozola
- Department of Inorganic Chemistry and Materials Sciences Institute, University of Seville-CSIC, Seville, Spain
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4
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Lee SH, Park SH, Park H. Assessing the Feasibility of Biorefineries for a Sustainable Citrus Waste Management in Korea. Molecules 2024; 29:1589. [PMID: 38611868 PMCID: PMC11013942 DOI: 10.3390/molecules29071589] [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: 02/20/2024] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
Citrus fruits are one of the most widely used fruits around the world and are used as raw fruits, but are also processed into products such as beverages, and large amounts of by-products and waste are generated in this process. Globally, disposal of citrus waste (CW) through simple landfilling or ocean dumping can result in soil and groundwater contamination, which can negatively impact ecosystem health. The case of Korea is not much different in that these wastes are simply buried or recycled wastes are used as livestock feed additives. However, there are many reports that CW, which is a waste, has high potential to produce a variety of products that can minimize environmental load and increase added value through appropriate waste management. In this study, we aim to explore the latest developments in the evaluation and valorization of the growing CW green technologies in an effort to efficiently and environmentally transform these CW for resource recovery, sustainability, and economic benefits. Recent research strategies on integrated biorefinery approaches have confirmed that CW can be converted into various bioproducts such as enzymes, biofuels and biopolymers, further contributing to energy security. It was found that more efforts are needed to scale up green recovery technologies and achieve diverse product profiling to achieve zero waste levels and industrial viability.
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Affiliation(s)
- Sang-Hwan Lee
- Technical Research Institute, Jeju BioRefine, Jeju 63148, Republic of Korea;
| | - Seong Hee Park
- Technical Research Institute, Fine Korea Corp., Seoul 07294, Republic of Korea;
| | - Hyun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
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Papadopoulou E, Vance C, Rozene Vallespin PS, Tsapekos P, Angelidaki I. Saccharina latissima, candy-factory waste, and digestate from full-scale biogas plant as alternative carbohydrate and nutrient sources for lactic acid production. BIORESOURCE TECHNOLOGY 2023; 380:129078. [PMID: 37100293 DOI: 10.1016/j.biortech.2023.129078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 05/14/2023]
Abstract
To substitute petroleum-based materials with bio-based alternatives, microbial fermentation combined with inexpensive biomass is suggested. In this study Saccharina latissima hydrolysate, candy-factory waste, and digestate from full-scale biogas plant were explored as substrates for lactic acid production. The lactic acid bacteria Enterococcus faecium, Lactobacillus plantarum, and Pediococcus pentosaceus were tested as starter cultures. Sugars released from seaweed hydrolysate and candy-waste were successfully utilized by the studied bacterial strains. Additionally, seaweed hydrolysate and digestate served as nutrient supplements supporting microbial fermentation. According to the highest achieved relative lactic acid production, a scaled-up co-fermentation of candy-waste and digestate was performed. Lactic acid reached a concentration of 65.65 g/L, with 61.69% relative lactic acid production, and 1.37 g/L/hour productivity. The findings indicate that lactic acid can be successfully produced from low-cost industrial residues.
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Affiliation(s)
- Eleftheria Papadopoulou
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Charlene Vance
- School of Biosystems & Food Engineering, University College Dublin, Agriculture Building, UCD Belfield, Dublin 4, Ireland
| | - Paloma S Rozene Vallespin
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Panagiotis Tsapekos
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Irini Angelidaki
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
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Li O, Liang J, Chen Y, Tang S, Li Z. Exploration of Converting Food Waste into Value-Added Products via Insect Pretreatment-Assisted Hydrothermal Catalysis. ACS OMEGA 2023; 8:18760-18772. [PMID: 37273594 PMCID: PMC10233670 DOI: 10.1021/acsomega.3c00762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/09/2023] [Indexed: 06/06/2023]
Abstract
The environmental burden of food waste (FW) disposal coupled with natural resource scarcity has aroused interest in FW valorization; however, transforming FW into valuable products remains a challenge because of its heterogeneous nature. In this study, a two-stage method involving black soldier fly (BSF)-based insect pretreatment and subsequent hydrothermal catalysis over a single-atom cerium-incorporated hydroxyapatite (Ce-HAP) was explored to convert FW into high added-value furfurals (furfural and 5-hydroxymethylfurfural). FW consisting of cereal, vegetables, meat, eggs, oil, and salt was initially degraded by BSF larvae to generate homogeneous BSF biomass, and then, crucial parameters impacting the conversion of BSF biomass into furfurals were investigated. Under the optimized conditions, 9.3 wt % yield of furfurals was attained, and repeated trials confirmed the recyclability of Ce-HAP. It was proved that the revenue of furfural production from FW by this two-stage method ranged from 3.14 to 584.4 USD/tonne. This study provides a potential technical orientation for FW resource utilization.
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de Sousa Nascimento L, Melo Nascimento RJ, da Mata AKA, Felipe VTA, Araújo RF, Bezerra LCA, Almeida JS, Mattos ALA, Uchoa DEA, de Novais LMR, D'Oca CDRM, Avelino F. Development of a phosphorous-based biorefinery process for producing lignocellulosic functional materials from coconut wastes. Int J Biol Macromol 2023; 239:124300. [PMID: 37011748 DOI: 10.1016/j.ijbiomac.2023.124300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/15/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
This work aimed to develop a phosphorous-based biorefinery process for obtaining phosphorylated lignocellulosic fractions in a one-pot protocol from coconut fiber. Natural coconut fiber (NCF) was mixed with 85 % m/m H3PO4 at 70 °C for 1 h to yield the modified coconut fiber (MCF), aqueous phase (AP), and coconut fiber lignin (CFL). MCF was characterized by its TAPPI, FTIR, SEM, EDX, TGA, WCA, and P content. AP was characterized regarding its pH, conductivity, glucose, furfural, HMF, total sugars and ASL contents. CFL structure was evaluated by FTIR, 1H, 31P and 1H-13C HSQC NMR, TGA and P content and was compared to that of milled wood lignin (MWL). It was observed that MCF and CFL were phosphorylated during the pulping (0.54 and 0.23 % wt., respectively), while AP has shown high sugar levels, low inhibitor content, and some remaining phosphorous. The phosphorylation of MCF and CFL also showed an enhancement of their thermal and thermo-oxidative properties. The results show that a platform of functional materials such as biosorbents, biofuels, flame retardants, and biocomposites can be created through an eco-friendly, simple, fast, and novel biorefinery process.
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Barragán-Ocaña A, Merritt H, Sánchez-Estrada OE, Méndez-Becerril JL, del Pilar Longar-Blanco M. Biorefinery and sustainability for the production of biofuels and value-added products: A trends analysis based on network and patent analysis. PLoS One 2023; 18:e0279659. [PMID: 36634105 PMCID: PMC9836267 DOI: 10.1371/journal.pone.0279659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023] Open
Abstract
Biorefineries are modern mechanisms used for producing value-added products and biofuels from different biomass sources. However, a crucial challenge is to achieve a sustainable model for their adequate implementation. Challenges related to technical efficiency and economic feasibility are two of the most relevant problems. Therefore, the present study sought to determine the current trends in basic research and technological development around biorefining and sustainability. We carried out a co-occurrence analysis and a patent analysis using data obtained from the Scopus and Lens databases to provide a general overview of the current state of this area of knowledge. The co-occurrence analysis intends to provide an overview of biorefining and sustainability based on terms associated with these two concepts as a starting point to determine the progress and existing challenges of the field. The results of the patent analysis consisted in identifying the main technological sectors, applicants, and territories where inventions associated with biorefining are registered. The analysis of the information showed that bioeconomy, techno-economic aspects, circular economy, technical issues associated with biomass production, and biofuels represent the focal point of basic research in a wide range of disciplines. Technology development is focused on fermentation, enzymes, and microorganisms, among other areas, which shows the validity of these traditional techniques in addressing the problems faced by the bioeconomy. This scenario shows that developed economies are the driving force behind this area of knowledge and that the PCT system is fundamental for the protection and commercialization of these inventions in places different from where they originated. Furthermore, the challenge lies in learning to work in alternative and complementary technological sectors, beyond microbiology and enzyme applications, in pursuit of the sector's technical and economic feasibility.
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Affiliation(s)
- Alejandro Barragán-Ocaña
- Instituto Politécnico Nacional (IPN), Centro de Investigaciones Económicas, Administrativas y Sociales, Mexico City, Mexico
- * E-mail:
| | - Humberto Merritt
- Instituto Politécnico Nacional (IPN), Centro de Investigaciones Económicas, Administrativas y Sociales, Mexico City, Mexico
| | - Omar Eduardo Sánchez-Estrada
- Universidad Autónoma del Estado de México (UAEM), Centro Universitario UAEM Valle de Chalco, Valle de Chalco, State of Mexico, Mexico
| | - José Luis Méndez-Becerril
- Instituto Politécnico Nacional (IPN), Centro de Investigaciones Económicas, Administrativas y Sociales, Mexico City, Mexico
| | - María del Pilar Longar-Blanco
- Instituto Politécnico Nacional (IPN), Centro de Investigaciones Económicas, Administrativas y Sociales, Mexico City, Mexico
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9
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He ZW, Zou ZS, Ren YX, Tang CC, Zhou AJ, Liu W, Wang L, Li Z, Wang A. Roles of zero-valent iron in anaerobic digestion: Mechanisms, advances and perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 852:158420. [PMID: 36049687 DOI: 10.1016/j.scitotenv.2022.158420] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 08/26/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
With the rapid growth of population and urbanization, more and more bio-wastes have been produced. Considering organics contained in bio-wastes, to recover resource from bio-wastes is of great significance, which can not only achieve the resource recycle, but also protect the environment. Anaerobic digestion (AD) has been proved as one of the most promising strategies to recover bio-energy from bio-wastes, as well as to realize the reduction of bio-wastes. However, the conventional interspecies electron transfer is sensitive to environmental shocks, such as high ammonia, organic pollutants, metal ions, etc., which lead to instability or failure of AD. The recent findings have proved that the introduction of zero-valent iron (ZVI) in AD system can significantly enhance methane production from bio-wastes. This review systematically highlighted the recent advances on the roles of ZVI in AD, including underlying mechanisms of ZVI on AD, performance enhancement of AD contributed by ZVI, and impact factors of AD regulated by ZVI. Furthermore, current limitations and outlooks have been analyzed and concluded. The roles of ZVI on underlying mechanisms in AD include regulating reaction conditions, electron transfer mode and function of microbial communities. The addition of ZVI in AD can not only enhance bio-energy recovery and toxic contaminants removal from bio-wastes, but also have the potential to buffer adverse effect caused by inhibitors. Moreover, the electron transfer modes induced by ZVI include both interspecies hydrogen transfer and direct interspecies electron transfer pathways. How to comprehensively evaluate the effects of ZVI on AD and further improve the roles of ZVI in AD is urgently needed for practical application of ZVI in AD. This review aims to provide some references for the introduction of ZVI in AD for enhancing bio-energy recovery from bio-wastes.
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Affiliation(s)
- Zhang-Wei He
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Zheng-Shuo Zou
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Yong-Xiang Ren
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Cong-Cong Tang
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Ai-Juan Zhou
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Wenzong Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Ling Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266000, China
| | - Zhihua Li
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Aijie Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
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Asunis F, Cappai G, Carucci A, De Gioannis G, Dessì P, Muntoni A, Polettini A, Pomi R, Rossi A, Spiga D, Trois C. Dark fermentative volatile fatty acids production from food waste: A review of the potential central role in waste biorefineries. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2022; 40:1571-1593. [PMID: 35796574 DOI: 10.1177/0734242x221103940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Volatile fatty acids (VFAs) are high-value chemicals that are increasingly demanded worldwide. Biological production via food waste (FW) dark fermentation (DF) is a promising option to achieve the sustainability and environmental benefits typical of biobased chemicals and concurrently manage large amounts of residues. DF has a great potential to play a central role in waste biorefineries due to its ability to hydrolyze and convert complex organic substrates into VFAs that can be used as building blocks for bioproducts, chemicals and fuels. Several challenges must be faced for full-scale implementation, including process optimization to achieve high and stable yields, the development of efficient techniques for selective recovery and the cost-effectiveness of the whole process. This review aims to critically discuss and statistically analyze the existing relationships between process performance and the main variables of concern. Moreover, opportunities, current challenges and perspectives of a FW-based and fermentation-centred biorefinery layout are discussed.
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Affiliation(s)
- Fabiano Asunis
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
| | - Giovanna Cappai
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
- Environmental Geology and Geoengineering Institute of the National Research Council (IGAG-CNR), Cagliari, Italy
| | - Alessandra Carucci
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
- Environmental Geology and Geoengineering Institute of the National Research Council (IGAG-CNR), Cagliari, Italy
| | - Giorgia De Gioannis
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
- Environmental Geology and Geoengineering Institute of the National Research Council (IGAG-CNR), Cagliari, Italy
| | - Paolo Dessì
- School of Chemistry and Energy Research Centre, Ryan Institute, National University of Ireland, Galway, Ireland
| | - Aldo Muntoni
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
- Environmental Geology and Geoengineering Institute of the National Research Council (IGAG-CNR), Cagliari, Italy
| | - Alessandra Polettini
- Department of Civil, Building and Environmental Engineering, University of Rome "La Sapienza", Rome, Italy
| | - Raffaella Pomi
- Department of Civil, Building and Environmental Engineering, University of Rome "La Sapienza", Rome, Italy
| | - Andreina Rossi
- Department of Civil, Building and Environmental Engineering, University of Rome "La Sapienza", Rome, Italy
| | - Daniela Spiga
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
| | - Cristina Trois
- Department of Civil Engineering, School of Engineering, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Durban, South Africa
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El-Qelish M, Hassan GK, Leaper S, Dessì P, Abdel-Karim A. Membrane-based technologies for biohydrogen production: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115239. [PMID: 35568016 DOI: 10.1016/j.jenvman.2022.115239] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/27/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Overcoming the existing environmental issues and the gradual depletion of energy sources is a priority at global level, biohydrogen can provide a sustainable and reliable energy reserve. However, the process instability and low biohydrogen yields are still hindering the adoption of biohydrogen production plants at industrial scale. In this context, membrane-based biohydrogen production technologies, and in particular fermentative membrane bioreactors (MBRs) and microbial electrolysis cells (MECs), as well as downstream membrane-based technologies such as electrodialysis (ED), are suitable options to achieve high-rate biohydrogen production. We have shed the light on the research efforts towards the development of membrane-based technologies for biohydrogen production from organic waste, with special emphasis to the reactor design and materials. Besides, techno-economic analyses have been traced to ensure the suitability of such technologies in bio-H2 production. Operation parameters such as pH, temperature and organic loading rate affect the performance of MBRs. MEC and ED technologies also are highly affected by the chemistry of the membrane used and anode material as well as the operation parameters. The limitations and future directions for application of membrane-based biohydrogen production technologies have been individuated. At the end, this review helps in the critical understanding of deploying membrane-based technologies for biohydrogen production, thereby encouraging future outcomes for a sustainable biohydrogen economy.
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Affiliation(s)
- Mohamed El-Qelish
- Water Pollution Research Department, National Research Centre, El Buhouth St., Dokki, P.O. Box 12622, Cairo, Egypt
| | - Gamal K Hassan
- Water Pollution Research Department, National Research Centre, El Buhouth St., Dokki, P.O. Box 12622, Cairo, Egypt.
| | - Sebastian Leaper
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Manchester, M13 9PL, UK
| | - Paolo Dessì
- School of Chemistry and Energy Research Centre, Ryan Institute, National University of Ireland Galway, University Road, H91 TK33, Galway, Ireland
| | - Ahmed Abdel-Karim
- Water Pollution Research Department, National Research Centre, El Buhouth St., Dokki, P.O. Box 12622, Cairo, Egypt; Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Manchester, M13 9PL, UK
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12
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Resource recovery from food-processing wastewaters in a circular economy: a methodology for the future. Curr Opin Biotechnol 2022; 76:102735. [DOI: 10.1016/j.copbio.2022.102735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 04/13/2022] [Accepted: 04/25/2022] [Indexed: 01/01/2023]
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13
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Stikane A, Dace E, Stalidzans E. Closing the loop in bioproduction: Spent Microbial Biomass as a resource within circular bioeconomy. N Biotechnol 2022; 70:109-115. [DOI: 10.1016/j.nbt.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/15/2022] [Accepted: 06/03/2022] [Indexed: 11/30/2022]
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14
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Boni MR, Polettini A, Pomi R, Rossi A, Filippi A, Cecchini G, Frugis A, Leoni S. Valorisation of residues from municipal wastewater sieving through anaerobic (co-)digestion with biological sludge. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2022; 40:814-821. [PMID: 34218750 DOI: 10.1177/0734242x211028449] [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: 06/13/2023]
Abstract
The Circular and Green Economy principles is inspiring new approaches to municipal wastewater treatment plants (MWWTPs) design and operation. Recently, an ever-growing interest is devoted to exploring the alternatives for switching the WWTPs from being able to 'simply' removing contaminants from water to biorefinery-like plants where energy and material can be recovered. In this perspective, both wastewater and residues from process can be valorised for recovering nutrients (N and P), producing value added products (i.e. biopolymers), energy vectors and biofuels (i.e. bio-H2, bio-CH4 and bioethanol). As an additional benefit, changing the approach for WWTPs design and operation will decrease the overall amount of landfilled residues. In this context, the present research is aimed at evaluating the CH4 production potential of MWW screening units' residues. While such a stream is typically landfilled, the expected progressive increase of biodegradable matter content due to the ban on single-use plastic along with the boost of bioplastics makes the investigation of different biochemical valorisation routes more and more interesting from an environmental and economical perspective. Thus, a full-scale data collection campaign was performed to gain information on screening residues amount and properties and to analyse the relationship with influent flowrate. The most relevant residue properties were measured, and lab-scale tests were carried out to evaluate the bio-CH4 potential.
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Affiliation(s)
- Maria Rosaria Boni
- DICEA Department, Faculty of Civil and Environmental Engineering, University of Rome La Sapienza, Rome, Italy
| | - Alessandra Polettini
- DICEA Department, Faculty of Civil and Environmental Engineering, University of Rome La Sapienza, Rome, Italy
| | - Raffaella Pomi
- DICEA Department, Faculty of Civil and Environmental Engineering, University of Rome La Sapienza, Rome, Italy
| | - Andreina Rossi
- DICEA Department, Faculty of Civil and Environmental Engineering, University of Rome La Sapienza, Rome, Italy
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15
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Multilinear Regression Model for Biogas Production Prediction from Dry Anaerobic Digestion of OFMSW. SUSTAINABILITY 2022. [DOI: 10.3390/su14084393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The aim of this study was to develop a multiple linear regression (MLR) model to predict the specific methane production (SMP) from dry anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW). A data set from an experimental test on a pilot-scale plug-flow reactor (PFR) including 332 observations was used to build the model. Pearson′s correlation matrix and principal component analysis (PCA) examined the relationships between variables. Six parameters, namely total volatile solid (TVSin), organic loading rate (OLR), hydraulic retention time (HRT), C/N ratio, lignin content and total volatile fatty acids (VFAs), had a significant correlation with SMP. Based on these outcomes, a simple and three multiple linear regression models (MLRs) were developed and validated. The simple linear regression model did not properly describe the data (R2 = 0.3). In turn, the MLR including all factors showed the optimal fitting ability (R2 = 0.91). Finally, the MLR including four uncorrelated explanatory variables of feedstock characteristics and operating parameters (e.g., TVSin, OLR, C/N ratio, and lignin content), resulted in the best compromise in terms of number of explanatory variables, model fitting and predictive ability (R2 = 0.87).
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16
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Abstract
Sustainable biofuel production is the most effective way to mitigate greenhouse gas emissions associated with fossil fuels while preserving food security and land use. In addition to producing bioenergy, waste biorefineries can be incorporated into the waste management system to solve the future challenges of waste disposal. Biomass waste, on the other hand, is regarded as a low-quality biorefinery feedstock with a wide range of compositions and seasonal variability. In light of these factors, biomass waste presents limitations on the conversion technologies available for value addition, and therefore more research is needed to enhance the profitability of waste biorefineries. Perhaps, to keep waste biorefineries economically and environmentally sustainable, bioprocesses need to be integrated to process a wide range of biomass resources and yield a diverse range of bioenergy products. To achieve optimal integration, the classification of biomass wastes to match the available bioprocesses is vital, as it minimizes unnecessary processes that may increase the production costs of the biorefinery. Based on biomass classification, this study discusses the suitability of the commonly used waste-to-energy conversion methods and the creation of integrated biorefineries. In this study, the integration of waste biorefineries is discussed through the integration of feedstocks, processes, platforms, and the symbiosis of wastes and byproducts. This review seeks to conceptualize a framework for identifying and integrating waste-to-energy technologies for the varioussets of biomass wastes.
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17
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Yadav V, Sarker A, Yadav A, Miftah AO, Bilal M, Iqbal HMN. Integrated biorefinery approach to valorize citrus waste: A sustainable solution for resource recovery and environmental management. CHEMOSPHERE 2022; 293:133459. [PMID: 34995629 DOI: 10.1016/j.chemosphere.2021.133459] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/02/2021] [Accepted: 12/26/2021] [Indexed: 02/07/2023]
Abstract
Citrus fruits are extensively cultivated, consumed and major processed horticulture crops around the globe. High processing and consumption generate huge quantities of solid organic wastes. Citrus waste represents approximately 40-50% of total fruit weight, which consists of rag (membranes and cores), pulp, seeds, and peel (albedo and flavedo), which are a potential source of value-added products including essential oils, carotenoids, pectin, dietary fibers, and polyphenols biofuel, etc. However, waste produced is discarded as waste in the environment, which causes a serious threat due to the presence of bioactive compounds. Recent research strategies on the integrated biorefinery approach explore various ways to utilize the waste obtained from the citrus wastes for their subsequent recovery of value-added products. Moreover, the citrus waste can be turned into various bio-products, viz., enzymes, biofuels, and biopolymers using the integrated biorefinery approach, which can optimize the development of green waste for sustainability and economic benefits. Given the sustainable solution for resource recovery and environmental management, the article reviews the latest advances in the novel valorization approach and valuation of the existing state-of-the-art green technologies for citrus waste utilization to bring a sustainable solution for increasing demand for food, fuel, and energy security. To achieve the zero-waste approach and industrial viability, more efforts should be given to scale-up green recovery techniques along with diverse product profiling.
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Affiliation(s)
- Vivek Yadav
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Horticulture, Northwest A&F University, Yangling 712100, China.
| | - Aniruddha Sarker
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Soil Science, EXIM Bank Agricultural University Bangladesh (EBAUB), Chapainawabganj, Bangladesh.
| | - Ashish Yadav
- Central Institute for Subtropical Horticulture, Lucknow, 226101, India.
| | - Amilin Oktarajifa Miftah
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China.
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
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18
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Shah AV, Singh A, Sabyasachi Mohanty S, Kumar Srivastava V, Varjani S. Organic solid waste: Biorefinery approach as a sustainable strategy in circular bioeconomy. BIORESOURCE TECHNOLOGY 2022; 349:126835. [PMID: 35150857 DOI: 10.1016/j.biortech.2022.126835] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/03/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
Waste generation is associated with numerous environmental consequences, making it a point of discussion in the environmental arena. Efforts have been made around the world to develop a systematic management approach coupled with a sustainable treatment technology to maximize resource utilization of organic solid waste. Biorefineries and bio-based products play a critical role in lowering total emissions and supporting energy systems. However, economic viability of biorefineries, on the other hand, is a stumbling hurdle to their commercialization. This communication provides a thorough study of the concept of biorefinery in waste management, as well as technological advancements in this field. In addition, the notion of techno-economic assessment, as well as challenges and future prospects have been covered. To find the most technologically and economically viable solution, further techno-economic study to the new context is required. Overall, this communication would assist decision-makers in identifying environmentally appropriate biorefinery solutions ahead of time.
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Affiliation(s)
- Anil V Shah
- Gujarat Pollution Control Board, Gandhinagar 382 010, Gujarat, India; Sankalchand Patel Vidyadham, Sankalchand Patel University, Visnagar 384 315, Gujarat, India
| | - Aditi Singh
- Gujarat Pollution Control Board, Gandhinagar 382 010, Gujarat, India; Central University of Gujarat, Gandhinagar 382030, Gujarat, India
| | - Swayansu Sabyasachi Mohanty
- Gujarat Pollution Control Board, Gandhinagar 382 010, Gujarat, India; Central University of Gujarat, Gandhinagar 382030, Gujarat, India
| | - Vijay Kumar Srivastava
- Sankalchand Patel Vidyadham, Sankalchand Patel University, Visnagar 384 315, Gujarat, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar 382 010, Gujarat, India; Sankalchand Patel Vidyadham, Sankalchand Patel University, Visnagar 384 315, Gujarat, India.
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19
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Virdis B, Hoelzle R, Marchetti A, Boto ST, Rosenbaum MA, Blasco-Gómez R, Puig S, Freguia S, Villano M. Electro-fermentation: Sustainable bioproductions steered by electricity. Biotechnol Adv 2022; 59:107950. [PMID: 35364226 DOI: 10.1016/j.biotechadv.2022.107950] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 02/22/2022] [Accepted: 03/24/2022] [Indexed: 01/06/2023]
Abstract
The market of biobased products obtainable via fermentation processes is steadily increasing over the past few years, driven by the need to create a decarbonized economy. To date, industrial fermentation (IF) employs either pure or mixed microbial cultures (MMC) whereby the type of the microbial catalysts and the used feedstock affect metabolic pathways and, in turn, the type of product(s) generated. In many cases, especially when dealing with MMC, the economic viability of IF is hindered by factors such as the low attained product titer and selectivity, which ultimately challenge the downstream recovery and purification steps. In this context, electro-fermentation (EF) represents an innovative approach, based on the use of a polarized electrode interface to trigger changes in the rate, yield, titer or product distribution deriving from traditional fermentation processes. In principle, the electrode in EF can act as an electron acceptor (i.e., anodic electro-fermentation, AEF) or donor (i.e., cathodic electro-fermentation, CEF), or simply as a mean to control the oxidation-reduction potential of the fermentation broth. However, the molecular and biochemical basis underlying the EF process are still largely unknown. This review paper provides a comprehensive overview of recent literature studies including both AEF and CEF examples with either pure or mixed microbial cultures. A critical analysis of biochemical, microbiological, and engineering aspects which presently hamper the transition of the EF technology from the laboratory to the market is also presented.
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Affiliation(s)
- Bernardino Virdis
- Australian Centre for Water and Environmental Biotechnology (ACWEB, formerly AWMC), The University of Queensland, Brisbane, QLD 4072, Australia
| | - Robert Hoelzle
- School of Earth and Environmental Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Angela Marchetti
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Santiago T Boto
- Bio Pilot Plant, Leibniz Institute for Natural Product Research and Infection Biology - Hans-Knöll-Institute (HKI), 07745 Jena, Germany; Faculty of Biological Sciences, Friedrich Schiller University (FSU), 07743 Jena, Germany
| | - Miriam A Rosenbaum
- Bio Pilot Plant, Leibniz Institute for Natural Product Research and Infection Biology - Hans-Knöll-Institute (HKI), 07745 Jena, Germany; Faculty of Biological Sciences, Friedrich Schiller University (FSU), 07743 Jena, Germany
| | - Ramiro Blasco-Gómez
- LEQUIA, Institute of the Environment, University of Girona, Maria Aurèlia Capmany 69, 17003 Girona, Spain
| | - Sebastià Puig
- LEQUIA, Institute of the Environment, University of Girona, Maria Aurèlia Capmany 69, 17003 Girona, Spain
| | - Stefano Freguia
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Marianna Villano
- Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy.
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20
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Igbokwe VC, Ezugworie FN, Onwosi CO, Aliyu GO, Obi CJ. Biochemical biorefinery: A low-cost and non-waste concept for promoting sustainable circular bioeconomy. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 305:114333. [PMID: 34952394 DOI: 10.1016/j.jenvman.2021.114333] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 12/11/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
The transition from a fossil-based linear economy to a circular bioeconomy is no longer an option but rather imperative, given worldwide concerns about the depletion of fossil resources and the demand for innovative products that are ecocompatible. As a critical component of sustainable development, this discourse has attracted wide attention at the regional and international levels. Biorefinery is an indispensable technology to implement the blueprint of the circular bioeconomy. As a low-cost, non-waste innovative concept, the biorefinery concept will spur a myriad of new economic opportunities across a wide range of sectors. Consequently, scaling up biorefinery processes is of the essence. Despite several decades of research and development channeled into upscaling biorefinery processes, the commercialization of biorefinery technology appears unrealizable. In this review, challenges limiting the commercialization of biorefinery technologies are discussed, with a particular focus on biofuels, biochemicals, and biomaterials. To counteract these challenges, various process intensification strategies such as consolidated bioprocessing, integrated biorefinery configurations, the use of highly efficient bioreactors, simultaneous saccharification and fermentation, have been explored. This study also includes an overview of biomass pretreatment-generated inhibitory compounds as platform chemicals to produce other essential biocommodities. There is a detailed examination of the technological, economic, and environmental considerations of a sustainable biorefinery. Finally, the prospects for establishing a viable circular bioeconomy in Nigeria are briefly discussed.
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Affiliation(s)
- Victor C Igbokwe
- Bioconversion and Renewable Energy Research Unit, University of Nigeria, Nsukka, Enugu State, Nigeria; Department of Materials Science and Engineering, Université de Pau et des Pays de l'Adour, 64012, Pau Cedex, France
| | - Flora N Ezugworie
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria; Bioconversion and Renewable Energy Research Unit, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Chukwudi O Onwosi
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria; Bioconversion and Renewable Energy Research Unit, University of Nigeria, Nsukka, Enugu State, Nigeria.
| | - Godwin O Aliyu
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria; Bioconversion and Renewable Energy Research Unit, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Chinonye J Obi
- Department of Microbiology, Faculty of Biological Sciences, University of Nigeria, Nsukka, Enugu State, Nigeria
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21
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Beggio G, Bonato T, Schievano A, Garbo F, Ciavatta C, Pivato A. Agricultural application of digestates derived from agricultural and municipal organic wastes: a health risk-assessment for heavy metals. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2021; 56:1409-1419. [PMID: 34766855 DOI: 10.1080/10934529.2021.2002628] [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: 02/17/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
A Human-health Risk Assessment was performed for an agricultural site in North-East Italy undergone digestate application to (i) check the compliance of digestate land spreading with the Italian and European regulations on contaminated agricultural soils and (ii) evaluate how resulting risk estimations can be influenced by the applied modeling assumptions. The assessment estimated the risk related to adults and children intake of Heavy Metals (HM) contained in crops at concentrations estimated by a soil-plant transfer model based on the substance-specific soil-water partition coefficients. Eight different scenarios were investigated, according to different digestate type (from biowaste and agro-industrial byproducts), digestate application techniques and soil background concentrations. Non-risky situations resulted in all scenarios involving digestate application. The totality of calculated non-carcinogenic Hazard Indexes (HI) and carcinogenic total risk (RTOTC) resulted below 0.02 and 3E10-9, respectively. In contrast with the definition, non-carcinogenic risks were associated with the considered soil background concentrations, with HI s up to 1.7 for child receptors, while carcinogenic risk was calculated below the concern threshold (i.e., RTOTC < 10-5). Accordingly, this study highlighted (i) non-concerning situations related with lawful application of digestates and (ii) the need to improve the modeling of bioavailability to plant of HMs background content of soil.
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Affiliation(s)
- Giovanni Beggio
- ICEA - Department of Civil, Architectural and Environmental Engineering, Padova, Italy
| | - Tiziano Bonato
- Società Estense Servizi Ambientali (S.E.S.A. S.p.A.), Este, PD, Italy
| | - Andrea Schievano
- Department of Environmental Science and Policy, University of Milano, Milano, Italy
| | - Francesco Garbo
- ICEA - Department of Civil, Architectural and Environmental Engineering, Padova, Italy
| | - Claudio Ciavatta
- Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Alberto Pivato
- ICEA - Department of Civil, Architectural and Environmental Engineering, Padova, Italy
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22
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Asunis F, De Gioannis G, Francini G, Lombardi L, Muntoni A, Polettini A, Pomi R, Rossi A, Spiga D. Environmental life cycle assessment of polyhydroxyalkanoates production from cheese whey. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 132:31-43. [PMID: 34304020 DOI: 10.1016/j.wasman.2021.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/30/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
Cheese whey (CW) is the main by-product of the dairy industry and is often considered one of the main agro-industrial biowaste streams to handle, especially within the European Union, where the diary activities play an essential role in the agrarian economy. In the paper, Life Cycle Assessment (LCA) is used to analyse the feasibility of producing polyhydroxyalkanoates (PHA) as the main output of an innovative CW valorisation route which is benchmarked against a conventional anaerobic digestion (AD) process. To this aim, the LCA inventory data are derived from lab-scale PHA accumulation tests performed on real CW, while data from the literature of concern are used for modelling both the PHA extraction from the accumulating biomass and for the alternative CW valorisation through AD. The comparison shows that AD would have better environmental performances than the baseline PHA production scenario. For example, the climate change indicator values result 44.8 and -35.7 kg CO2 eq./t CW for the baseline PHA recovery and AD, respectively. LCA proved to be a useful tool to highlight the weak points of innovative processes and suggest proper improvements. Once improved and again analysed through the LCA, the PHA production process from CW shows that environmental performance comparable to AD may be achieved. With reference, again, to the climate change indicator the value can be reduced to -50.3 kg CO2 eq./t CW for the improved PHA production process.
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Affiliation(s)
- Fabiano Asunis
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
| | - Giorgia De Gioannis
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy; IGAG - CNR, Istituto di Geologia Ambientale e Geoingegneria - Consiglio Nazionale delle Ricerche, Piazza d'Armi, 09123 Cagliari, Italy
| | - Giovanni Francini
- Department of Civil and Environmental Engineering, University of Florence, Via Santa Marta 3, 50139 Florence, Italy
| | - Lidia Lombardi
- Niccolò Cusano University of Rome, Via Don Carlo Gnocchi 3, 00166 Rome, Italy.
| | - Aldo Muntoni
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
| | - Alessandra Polettini
- Department of Civil and Environmental Engineering, University of Rome "La Sapienza", Via Eudossiana 18, 00184 Rome, Italy
| | - Raffaella Pomi
- Department of Civil and Environmental Engineering, University of Rome "La Sapienza", Via Eudossiana 18, 00184 Rome, Italy
| | - Andreina Rossi
- Department of Civil and Environmental Engineering, University of Rome "La Sapienza", Via Eudossiana 18, 00184 Rome, Italy
| | - Daniela Spiga
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy
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23
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Perra M, Lozano-Sánchez J, Leyva-Jiménez FJ, Segura-Carretero A, Pedraz JL, Bacchetta G, Muntoni A, De Gioannis G, Manca ML, Manconi M. Extraction of the antioxidant phytocomplex from wine-making by-products and sustainable loading in phospholipid vesicles specifically tailored for skin protection. Biomed Pharmacother 2021; 142:111959. [PMID: 34333288 DOI: 10.1016/j.biopha.2021.111959] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 12/17/2022] Open
Abstract
The present study is aimed at valorizing grape pomace, one of the most abundant winery-making by-products of the Mediterranean area, through the extraction of the main bioactive compounds from the skin of grape pomace and using them to manufacture innovative nanoformulations capable of both avoiding skin damages and promoting skincare. The phytochemicals were recovered through maceration in hydroethanolic solution. Catechin, quercetin, fisetin and gallic acid, which are known for their antioxidant power, were detected as the main compounds of the extract. Liposomes and phospholipid vesicles modified with glycerol or Montanov 82® or a combination of both, were used as carriers for the extract. The vesicles were small (~183 nm), slightly polydispersed (PI ≥ 0.28), and highly negatively charged (~-50 mV). The extract was loaded in high amounts in all vesicles (~100%) irrespective of their composition. The antioxidant activity of the extract, measured by using the DPPH (2,2-Diphenyl-1-picrylhydrazyl) test, was 84 ± 1%, and slightly increased when loaded into the vesicles (~89%, P < 0.05). The grape pomace extract loaded vesicles were highly biocompatible and able to protect fibroblasts (3T3) from the oxidative stress induced by hydrogen peroxide.
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Affiliation(s)
- Matteo Perra
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Jesús Lozano-Sánchez
- Department of Food Science and Nutrition, University of Granada, Campus Universitario s/n, 18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Francisco-Javier Leyva-Jiménez
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Antonio Segura-Carretero
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain
| | - Josè Luis Pedraz
- NanoBioCel Group, University of Basque Country, Paseo de la Universidad 7, 01006 Vitoria, Spain; Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Gianluigi Bacchetta
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy; Centre for the Conservation of Biodiversity (CCB), University of Cagliari, V.le Sant'Ignazio da Laconi 13, 09123 Cagliari, Italy
| | - Aldo Muntoni
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123 Cagliari, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123 Cagliari, Italy
| | - Giorgia De Gioannis
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123 Cagliari, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123 Cagliari, Italy
| | - Maria Letizia Manca
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
| | - Maria Manconi
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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24
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Zhang J, Qin Q, Li G, Tseng CH. Sustainable municipal waste management strategies through life cycle assessment method: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 287:112238. [PMID: 33714044 DOI: 10.1016/j.jenvman.2021.112238] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 02/13/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
Increasing amounts of municipal solid waste (MSW) has gained widely concern on reduction, utilization and minimizing environmental impacts associated with waste management. Life cycle assessment (LCA) has been used to evaluate total environmental impact of municipal waste management (MSWM) options in strategy-planning and decision-making process. The exiting LCA studies have covered a large range of detailed focus from waste treatment technology to applied modelling methods in LCA of MSWM, yet an important concern for stakeholders, the relationship between practical management strategies and their LCA results, has not been comprehensively summarized. This paper reviews recent LCA studies focusing on MSWM system in 45 cases from both developing and developed regions to promote evolution of the MSWM system through modification of waste management strategies. Selected literatures conducted LCA with system boundary covering the whole MSWM system rather than single treatment process or specific type of waste. This review has explored distribution and evolution of LCA studies in waste management field and summarized critical parameters (system boundary, functional unit, assessment approach and data uncertainty) for conducting LCA of MSWM system. Comparison results from 45 worldwide cases indicated 33%-154% environmental benefit in Global warming potential (GWP) impact with implement of integrated solid waste management system to replace single landfill, incineration, or open dumping treatment. Key issues with upgrading of MSWM system have been highlighted to raise concern, i.e., the importance of targeted management strategy on organic and recyclable waste, the growing contribution of waste collection and transportation to the total environmental impact, as well as promoting multi-impacts assessment for MSWM system to achieve environmentally effective, economically affordable, and socially acceptable. Rather than focus on technical factors, results from this study indicated the key influences from understanding local limitation, environmental concern, management chain and comprehensive impact, providing useful strategies on improving MSWM with generalization results of LCA studies.
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Affiliation(s)
- Junting Zhang
- College of Management, Shenzhen University, Shenzhen, 518060, China
| | - Quande Qin
- College of Management, Shenzhen University, Shenzhen, 518060, China.
| | - Guangming Li
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Chao-Heng Tseng
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei City, 106, Taiwan, ROC
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25
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Ubando AT, Del Rosario AJR, Chen WH, Culaba AB. A state-of-the-art review of biowaste biorefinery. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116149. [PMID: 33280912 DOI: 10.1016/j.envpol.2020.116149] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Biorefineries provide a platform for different industries to produce multiple bio-products enhancing the economic value of the system. The production of these biorefineries has led to an increase in the generation of biowaste. To minimize the risk of environmental pollution, numerous studies have focused on a variety of strategies to mitigate these concerns reflected in the vast amount of literature written on this topic. This paper aims to systematically analyze and review the enormous body of scientific literature in the biowaste and biorefinery field for establishing an understanding and providing a direction for future works. A bibliometric analysis is first performed using the CorTexT Manager platform on a corpus of 1488 articles written on the topic of biowaste. Popular and emerging topics are determined using a terms extraction algorithm. A contingency matrix is then created to study the correlation of scientific journals and key topics from this field. Then, the connection and evolution of these terms were analyzed using network mapping, to determine relationships among key terms and analyze notable trends in this research field. Finally, a critical review of articles was presented across three main categories of biowaste management such as mitigation, sustainable utilization, and cleaner disposal from the perspective of the biorefinery concept. Operational and technological challenges are identified for the integration of anaerobic digestion in biorefineries, especially in developing nations. Moreover, logistical challenges in the biorefinery supply-chain are established based on the economics and collection aspect of handling biowaste.
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Affiliation(s)
- Aristotle T Ubando
- Mechanical Engineering Department, De La Salle University, 2401 Taft Avenue, 0922, Manila, Philippines; Center for Engineering and Sustainable Development Research, De La Salle University, Manila, 0922, Philippines; Thermomechanical Laboratory, De La Salle University, Laguna Campus, LTI Spine Road, Laguna Blvd, Biñan, Laguna, 4024, Philippines
| | - Aaron Jules R Del Rosario
- Mechanical Engineering Department, De La Salle University, 2401 Taft Avenue, 0922, Manila, Philippines; Center for Engineering and Sustainable Development Research, De La Salle University, Manila, 0922, Philippines
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan, 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung, 411, Taiwan.
| | - Alvin B Culaba
- Mechanical Engineering Department, De La Salle University, 2401 Taft Avenue, 0922, Manila, Philippines; Center for Engineering and Sustainable Development Research, De La Salle University, Manila, 0922, Philippines
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26
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Isipato M, Dessì P, Sánchez C, Mills S, Ijaz UZ, Asunis F, Spiga D, De Gioannis G, Mascia M, Collins G, Muntoni A, Lens PNL. Propionate Production by Bioelectrochemically-Assisted Lactate Fermentation and Simultaneous CO 2 Recycling. Front Microbiol 2021; 11:599438. [PMID: 33384675 PMCID: PMC7769879 DOI: 10.3389/fmicb.2020.599438] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 11/23/2020] [Indexed: 11/17/2022] Open
Abstract
Production of volatile fatty acids (VFAs), fundamental building blocks for the chemical industry, depends on fossil fuels but organic waste is an emerging alternative substrate. Lactate produced from sugar-containing waste streams can be further processed to VFAs. In this study, electrofermentation (EF) in a two-chamber cell is proposed to enhance propionate production via lactate fermentation. At an initial pH of 5, an applied potential of −1 V vs. Ag/AgCl favored propionate production over butyrate from 20 mM lactate (with respect to non-electrochemical control incubations), due to the pH buffering effect of the cathode electrode, with production rates up to 5.9 mM d–1 (0.44 g L–1 d–1). Microbial community analysis confirmed the enrichment of propionate-producing microorganisms, such as Tyzzerella sp. and Propionibacterium sp. Organisms commonly found in microbial electrosynthesis reactors, such as Desulfovibrio sp. and Acetobacterium sp., were also abundant at the cathode, indicating their involvement in recycling CO2 produced by lactate fermentation into acetate, as confirmed by stoichiometric calculations. Propionate was the main product of lactate fermentation at substrate concentrations up to 150 mM, with a highest production rate of 12.9 mM d–1 (0.96 g L–1 d–1) and a yield of 0.48 mol mol–1 lactate consumed. Furthermore, as high as 81% of the lactate consumed (in terms of carbon) was recovered as soluble product, highlighting the potential for EF application with high-carbon waste streams, such as cheese whey or other food wastes. In summary, EF can be applied to control lactate fermentation toward propionate production and to recycle the resulting CO2 into acetate, increasing the VFA yield and avoiding carbon emissions and addition of chemicals for pH control.
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Affiliation(s)
- Marco Isipato
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy.,Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Paolo Dessì
- Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Carlos Sánchez
- Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Simon Mills
- Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Umer Z Ijaz
- Infrastructure and Environment Research Division, School of Engineering, University of Glasgow, Glasgow, United Kingdom
| | - Fabiano Asunis
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
| | - Daniela Spiga
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy
| | - Giorgia De Gioannis
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy.,IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council-Piazza D'Armi 1, Cagliari, Italy
| | - Michele Mascia
- Dipartimento di Ingegneria Meccanica, Chimica, e dei Materiali, Università degli Studi di Cagliari, Cagliari, Italy
| | - Gavin Collins
- Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - Aldo Muntoni
- Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Cagliari, Italy.,IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council-Piazza D'Armi 1, Cagliari, Italy
| | - Piet N L Lens
- Microbiology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway, Galway, Ireland
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