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Benaddou M, Hajjaj H, Allali A, Moubchir T, Nait M’Barek H, Nafidi H, Bin Jardan YA, Dabiellil F, Bourhia M, Chakir M, Diouri M. Optimizing fungal treatment of lignocellulosic agro-industrial by-products to enhance their nutritional value. Food Sci Nutr 2024; 12:4831-4848. [PMID: 39055179 PMCID: PMC11266882 DOI: 10.1002/fsn3.4131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 02/22/2024] [Accepted: 03/14/2024] [Indexed: 07/27/2024] Open
Abstract
This study delves into the dynamic interaction between various fungal strains, substrates, and treatment durations to optimize the nutritional value of these by-products. Six fungi, including Penicillium chrysogenum, Fusarium sp., Fusarium oxysporum, Fusarium solani, Penicillium crustosum, and Cosmospora viridescens, were evaluated across three substrates: wheat straw (WS), cedar sawdust (CW), and olive pomace (OP) over treatment periods of 4, 8, and 12 weeks. The study discerned profound impacts of these fungi across multiple parameters, including cellulose variation (C.var), lignin variation (L.var), and in vitro true digestibility variation (IVTD.var). Our results demonstrated that the various fungi had a significant effect on all parameters (p < .001). Noteworthy, F. oxysporum and F. solani emerged as exemplars, displaying notable lignin degradation, cellulose liberation, and IVTD enhancement. Importantly, P. crustosum demonstrated substantial cellulose degradation, exhibiting optimal efficacy in just 4 weeks for all substrates. Notably, F. sp. excelled, yielding favorable results when treating WS. P. chrysogenum achieved optimal outcomes with 8-week treatment for WS. Both Fusarium sp. and P. chrysogenum exhibited slight cellulose release, with remarkable reduction of WS lignin compared to other substrates. Especially, WS and OP displayed superior digestibility enhancements relative to CW. It should be noted that the treatment duration further shaped these outcomes, as prolonged treatment (12 weeks) fostered greater benefits in lignin degradation and digestibility, albeit with concomitant cellulose degradation. These findings underscore the intricate balance between fungal strains, substrates, and treatment durations in optimizing the nutritional value of lignocellulosic agro-industrial by-products. The outcomes of this study lead to the enhancement in the overall value of by-products, promoting sustainable livestock feed and advancing agricultural sustainability.
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Affiliation(s)
- Mohamed Benaddou
- Biotechnology and Bio‐Resource Development Laboratory (BioVar)Moulay Ismail UniversityZitoune MeknesMorocco
| | - Hassan Hajjaj
- Biotechnology and Bio‐Resource Development Laboratory (BioVar)Moulay Ismail UniversityZitoune MeknesMorocco
| | - Aimad Allali
- Laboratory of Plant, Animal and Agro‐Industry ProductionsUniversity of Ibn TofailKenitraMorocco
| | - Tarik Moubchir
- Polyvalent Team in Research and Development, Department of BiologyFaculté Polydisciplinaire Beni MellalBeni‐MellalMorocco
| | - Hasna Nait M’Barek
- Biotechnology and Bio‐Resource Development Laboratory (BioVar)Moulay Ismail UniversityZitoune MeknesMorocco
| | - Hiba‐Allah Nafidi
- Department of Food Science, Faculty of Agricultural and Food SciencesLaval UniversityQuebec CityQuebecCanada
| | - Yousef A. Bin Jardan
- Department of Pharmaceutics, College of PharmacyKing Saud UniversityRiyadhSaudi Arabia
| | | | - Mohammed Bourhia
- Laboratory of Biotechnology and Natural Resources Valorization, Faculty of SciencesIbn Zohr UniversityAgadirMorocco
| | - Mariyem Chakir
- Biotechnology and Bio‐Resource Development Laboratory (BioVar)Moulay Ismail UniversityZitoune MeknesMorocco
| | - Mohammed Diouri
- Biotechnology and Bio‐Resource Development Laboratory (BioVar)Moulay Ismail UniversityZitoune MeknesMorocco
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Almeida-Naranjo CE, Aguilar AD, Valle V, Bastidas-Caldes C, Debut A, Sinchiguano B. A Circular Bioeconomy Approach to Using Post-Bioadsorbent Materials Intended for the Removal of Domestic Wastewater Contaminants as Potential Reinforcements. Polymers (Basel) 2024; 16:1822. [PMID: 39000678 PMCID: PMC11244392 DOI: 10.3390/polym16131822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 06/17/2024] [Accepted: 06/20/2024] [Indexed: 07/17/2024] Open
Abstract
Agro-industrial residue valorization under the umbrella of the circular bioeconomy (CBE) has prompted the search for further forward-thinking alternatives that encourage the mitigation of the industry's environmental footprint. From this perspective, second-life valorization (viz., thermoplastic composites) has been explored for agro-industrial waste (viz., oil palm empty fruit bunch fibers, OPEFBFs) that has already been used previously in other circular applications (viz., the removal of domestic wastewater contaminants). Particularly, this ongoing study evaluated the performance of raw residues (R-OPEFBFs) within three different size ranges (250-425, 425-600, 600-800 µm) both before and after their utilization in biofiltration processes (as post-adsorbents, P-OPEFBFs) to reinforce a polymer matrix of acrylic resin. The research examined the changes in R-OPEFBF composition and morphology caused by microorganisms in the biofilters and their impact on the mechanical properties of the composites. Smaller R-OPEFBFs (250-425 µm) demonstrated superior mechanical performance. Additionally, the composites with P-OPEFBFs displayed significant enhancements in their mechanical properties (3.9-40.3%) compared to those with R-OPEFBFs. The combination of the three fiber sizes improved the mechanical behavior of the composites, indicating the potential for both R-OPEFBFs and P-OPEFBFs as reinforcement materials in composite applications.
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Affiliation(s)
- Cristina E Almeida-Naranjo
- Grupo de Biodiversidad Medio Ambiente y Salud (BIOMAS), Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Las Américas, Redondel del Ciclista Antigua Vía a Nayón, Quito 170124, Ecuador
| | - Alex Darío Aguilar
- Departamento de Ciencias de Alimentos y Biotecnología, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, Quito 17-07-2759, Ecuador
- Advanced Materials and Processes (MAP)-Technische Fakultät, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
- Institute of Polymer Technology (LKT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Am Weichselgarten 10, 91058 Erlangen-Tennenlohe, Germany
| | - Vladimir Valle
- Departamento de Ciencias de Alimentos y Biotecnología, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, Quito 17-07-2759, Ecuador
| | - Carlos Bastidas-Caldes
- One Health Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de Las Américas, Redondel del Ciclista Antigua Vía a Nayón, Quito 170124, Ecuador
| | - Alexis Debut
- Center of Nanoscience and Nanotechnology, Universidad de las Fuerzas Armadas ESPE, Sangolquí 17-15-231B, Ecuador
| | - Britanny Sinchiguano
- Facultad de Ciencias, Ingeniería y Construcción, Universidad UTE, Rumipamba y Bourgeois, Quito 17-07-2759, Ecuador
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Bari E, Far MG, Daniel G, Bozorgzadeh Y, Ribera J, Aghajani H, Hosseinpourpia R. Fungal behavior and recent developments in biopulping technology. World J Microbiol Biotechnol 2024; 40:207. [PMID: 38767733 DOI: 10.1007/s11274-024-03992-2] [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: 01/05/2024] [Accepted: 04/17/2024] [Indexed: 05/22/2024]
Abstract
Biological pretreatment of wood chips by fungi is a well-known approach prior to mechanical- or chemical pulp production. For this biological approach, a limited number of white-rot fungi with an ability to colonize and selectively degrade lignin are used to pretreat wood chips allowing the remaining cellulose to be processed for further applications. Biopulping is an environmentally friendly technology that can reduce the energy consumption of traditional pulping processes. Fungal pretreatment also reduces the pitch content in the wood chips and improves the pulp quality in terms of brightness, strength, and bleachability. The bleached biopulps are easier to refine compared to pulps produced by conventional methodology. In the last decades, biopulping has been scaled up with pilot trials towards industrial level, with optimization of several intermediate steps and improvement of economic feasibility. Nevertheless, fundamental knowledge on the biochemical mechanisms involved in biopulping is still lacking. Overall, biopulping technology has advanced rapidly during recent decades and pilot mill trials have been implemented. The use of fungi as pretreatment for pulp production is in line with modern circular economy strategies and can be implemented in existing production plants. In this review, we discuss some recent advances in biopulping technology, which can improve mechanical-, chemical-, and organosolv pulping processes along with their mechanisms.
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Affiliation(s)
- Ehsan Bari
- Department of Wood Sciences and Engineering, Technical and Vocational University (TVU), Tehran, Iran.
| | - Mohammad Ghorbanian Far
- Department of Wood Sciences and Engineering, Technical and Vocational University (TVU), Tehran, Iran
| | - Geoffrey Daniel
- Department of Forest Biomaterial and Technology/Wood Science, Swedish University of Agricultural Sciences, 75007, Uppsala, Sweden
| | - Younes Bozorgzadeh
- Department of Wood Engineering and Technology, Gorgan University of Agriculture Sciences and Natural Resources, Gorgan, 4913815739, Iran
| | - Javier Ribera
- Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain
| | - Hamed Aghajani
- Department of Forest Science and Engineering, Sari Agricultural Science and Natural Resources University, Sari, Iran
| | - Reza Hosseinpourpia
- Department of Forestry and Wood Technology, Linnaeus University, Georg Lückligs Plats 1, 35195, Växjö, Sweden.
- College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI, 49931, USA.
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Martinho VJPD, Rodrigues RN. Bioenergy relations with agriculture, forestry and other land uses: Highlighting the specific contributions of artificial intelligence and co-citation networks. Heliyon 2024; 10:e26267. [PMID: 38379976 PMCID: PMC10877436 DOI: 10.1016/j.heliyon.2024.e26267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/22/2024] Open
Abstract
The concerns with the environment and sustainability have promoted options for energy sources that mitigate the footprint of human life. The use of biomass from agriculture, forestry and other land uses (AFOLU) has enormous potential for the production of bioenergy as a renewable source of energy. In this context, this research aims to analyse the interrelationships between bioenergy and agriculture, forestry and other land uses, highlighting the contributions of the digital transition for these dimensions. To achieve these objectives, a bibliometric analysis through co-citation links (and items related to cited authors, references and sources) was carried out for the dimensions associated with the bioenergy and the AFOLU and after a specific literature survey was performed for the contributions from the digital transition for these frameworks. With this study, top authors, references and sources were identified for the topics assessed and it was highlighted the importance of digital transitions for more efficient bioenergy use and production in the worldwide contexts.
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Affiliation(s)
| | - Raimundo Nonato Rodrigues
- Center of Applied Social Sciences, Department of Accounting and Actuarial Sciences, Federal University of Pernambuco, Recife 50740-580, Brazil
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Chen Z, Chen L, Khoo KS, Gupta VK, Sharma M, Show PL, Yap PS. Exploitation of lignocellulosic-based biomass biorefinery: A critical review of renewable bioresource, sustainability and economic views. Biotechnol Adv 2023; 69:108265. [PMID: 37783293 DOI: 10.1016/j.biotechadv.2023.108265] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/25/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
Urbanization has driven the demand for fossil fuels, however, the overly exploited resource has caused severe damage on environmental pollution. Biorefining using abundant lignocellulosic biomass is an emerging strategy to replace traditional fossil fuels. Value-added lignin biomass reduces the waste pollution in the environment and provides a green path of conversion to obtain renewable resources. The technology is designed to produce biofuels, biomaterials and value-added products from lignocellulosic biomass. In the biorefinery process, the pretreatment step is required to reduce the recalcitrant structure of lignocellulose biomass and improve the enzymatic digestion. There is still a gap in the full and deep understanding of the biorefinery process including the pretreatment process, thus it is necessary to provide optimized and adapted biorefinery solutions to cope with the conversion process in different biorefineries to further provide efficiency in industrial applications. Current research progress on value-added applications of lignocellulosic biomass still stagnates at the biofuel phase, and there is a lack of comprehensive discussion of emerging potential applications. This review article explores the advantages, disadvantages and properties of pretreatment methods including physical, chemical, physico-chemical and biological pretreatment methods. Value-added bioproducts produced from lignocellulosic biomass were comprehensively evaluated in terms of encompassing biochemical products , cosmetics, pharmaceuticals, potent functional materials from cellulose and lignin, waste management alternatives, multifunctional carbon materials and eco-friendly products. This review article critically identifies research-related to sustainability of lignocellulosic biomass to promote the development of green chemistry and to facilitate the refinement of high-value, environmentally-friendly materials. In addition, to align commercialized practice of lignocellulosic biomass application towards the 21st century, this paper provides a comprehensive analysis of lignocellulosic biomass biorefining and the utilization of biorefinery green technologies is further analyzed as being considered sustainable, including having potential benefits in terms of environmental, economic and social impacts. This facilitates sustainability options for biorefinery processes by providing policy makers with intuitive evaluation and guidance.
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Affiliation(s)
- Zhonghao Chen
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Lin Chen
- School of Civil Engineering, Chongqing University, Chongqing 400045, China; Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Science, Yuan Ze University, Taoyuan, Taiwan; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India.
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Centre, SRUC, Barony Campus, Parkgate, Dumfries DG1 3NE, United Kingdom.
| | | | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Pow-Seng Yap
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China.
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AbuQamar SF, Abd El-Fattah HI, Nader MM, Zaghloul RA, Abd El-Mageed TA, Selim S, Omar BA, Mosa WF, Saad AM, El-Tarabily KA, El-Saadony MT. Exploiting fungi in bioremediation for cleaning-up emerging pollutants in aquatic ecosystems. MARINE ENVIRONMENTAL RESEARCH 2023; 190:106068. [PMID: 37421706 DOI: 10.1016/j.marenvres.2023.106068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/04/2023] [Accepted: 06/22/2023] [Indexed: 07/10/2023]
Abstract
Aquatic pollution negatively affects water bodies, marine ecosystems, public health, and economy. Restoration of contaminated habitats has attracted global interest since protecting the health of marine ecosystems is crucial. Bioremediation is a cost-effective and eco-friendly way of transforming hazardous, resistant contaminants into environmentally benign products using diverse biological treatments. Because of their robust morphology and broad metabolic capabilities, fungi play an important role in bioremediation. This review summarizes the features employed by aquatic fungi for detoxification and subsequent bioremediation of different toxic and recalcitrant compounds in aquatic ecosystems. It also details how mycoremediation may convert chemically-suspended matters, microbial, nutritional, and oxygen-depleting aquatic contaminants into ecologically less hazardous products using multiple modes of action. Mycoremediation can also be considered in future research studies on aquatic, including marine, ecosystems as a possible tool for sustainable management, providing a foundation for selecting and utilizing fungi either independently or in microbial consortia.
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Affiliation(s)
- Synan F AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
| | - Hassan I Abd El-Fattah
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Maha M Nader
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Rashed A Zaghloul
- Department of Agricultural Microbiology, Faculty of Agriculture, Moshtohor, Benha University, Benha, 13511, Egypt
| | - Taia A Abd El-Mageed
- Department of Soils and Water, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72388, Saudi Arabia
| | - Belal A Omar
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Walid F Mosa
- Plant Production Department (Horticulture-Pomology), Faculty of Agriculture Saba Basha, Alexandria University, Alexandria, 21526, Egypt
| | - Ahmed M Saad
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
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Vasilakis G, Rigos EM, Giannakis N, Diamantopoulou P, Papanikolaou S. Spent Mushroom Substrate Hydrolysis and Utilization as Potential Alternative Feedstock for Anaerobic Co-Digestion. Microorganisms 2023; 11:microorganisms11020532. [PMID: 36838496 PMCID: PMC9964826 DOI: 10.3390/microorganisms11020532] [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: 01/19/2023] [Revised: 02/08/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
Valorization of lignocellulosic biomass, such as Spent Mushroom Substrate (SMS), as an alternative substrate for biogas production could meet the increasing demand for energy. In view of this, the present study aimed at the biotechnological valorization of SMS for biogas production. In the first part of the study, two SMS chemical pretreatment processes were investigated and subsequently combined with thermal treatment of the mentioned waste streams. The acidic chemical hydrolysate derived from the hydrothermal treatment, which yielded in the highest concentration of free sugars (≈36 g/100 g dry SMS, hydrolysis yield ≈75% w/w of holocellulose), was used as a potential feedstock for biomethane production in a laboratory bench-scale improvised digester, and 52 L biogas/kg of volatile solids (VS) containing 65% methane were produced in a 15-day trial of anaerobic digestion. As regards the alkaline hydrolysate, it was like a pulp due to the lignocellulosic matrix disruption, without releasing additional sugars, and the biogas production was delayed for several days. The biogas yield value was 37 L/kg VS, and the methane content was 62%. Based on these results, it can be concluded that SMS can be valorized as an alternative medium employed for anaerobic digestion when pretreated with both chemical and hydrothermal hydrolysis.
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Affiliation(s)
- Gabriel Vasilakis
- Laboratory of Food Microbiology and Biotechnology, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
| | - Evangelos-Markos Rigos
- Laboratory of Food Microbiology and Biotechnology, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
| | - Nikos Giannakis
- Laboratory of Food Process Engineering, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
| | - Panagiota Diamantopoulou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization “Dimitra”, 1 Sofokli Venizelou Str., 14123 Lykovryssi, Greece
| | - Seraphim Papanikolaou
- Laboratory of Food Microbiology and Biotechnology, Department of Food Science and Human Nutrition, Agricultural University of Athens, 11855 Athens, Greece
- Correspondence:
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Wang M, Qiao J, Sheng Y, Wei J, Cui H, Li X, Yue G. Bioconversion of corn fiber to bioethanol: Status and perspectives. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 157:256-268. [PMID: 36577277 DOI: 10.1016/j.wasman.2022.12.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/17/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Due to the rising demand for green energy, bioethanol has attracted increasing attention from academia and industry. Limited by the bottleneck of bioethanol yield in traditional corn starch dry milling processes, an increasing number of studies focus on fully utilizing all corn ingredients, especially kernel fiber, to further improve the bioethanol yield. This mini-review addresses the technological challenges and opportunities on the way to achieving the efficient conversion of corn fiber. Significant advances during the review period include the detailed characterization of different forms of corn kernel fiber and the development of off-line and in-situ conversion strategies. Lessons from cellulosic ethanol technologies offer new ways to utilize corn fiber in traditional processes. However, the commercialization of corn kernel fiber conversion may be hampered by enzyme cost, conversion efficiency, and overall process economics. Thus, future studies should address these technical limitations.
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Affiliation(s)
- Minghui Wang
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Jie Qiao
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Yijie Sheng
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Junnan Wei
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Haiyang Cui
- Institute of Biotechnology, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany.
| | - Xiujuan Li
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China.
| | - Guojun Yue
- College of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China; SDIC Biotech Investment Co., Ltd., Beijing 100034, China
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9
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Activity-based protein profiling reveals dynamic substrate-specific cellulase secretion by saprotrophic basidiomycetes. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:6. [PMID: 35418096 PMCID: PMC8764865 DOI: 10.1186/s13068-022-02107-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 01/06/2022] [Indexed: 11/10/2022]
Abstract
Abstract
Background
Fungal saccharification of lignocellulosic biomass occurs concurrently with the secretion of a diverse collection of proteins, together functioning as a catalytic system to liberate soluble sugars from insoluble composite biomaterials. How different fungi respond to different substrates is of fundamental interest to the developing biomass saccharification industry. Among the cornerstones of fungal enzyme systems are the highly expressed cellulases (endo-β-glucanases and cellobiohydrolases). Recently, a cyclophellitol-derived activity-based probe (ABP-Cel) was shown to be a highly sensitive tool for the detection and identification of cellulases.
Results
Here we show that ABP-Cel enables endo-β-glucanase profiling in diverse fungal secretomes. In combination with established ABPs for β-xylanases and β-d-glucosidases, we collected multiplexed in-gel fluorescence activity-based protein profiles of 240 secretomes collected over ten days from biological replicates of ten different basidiomycete fungi grown on maltose, wheat straw, or aspen pulp. Our results reveal the remarkable dynamics and unique enzyme fingerprints associated with each species substrate combination. Chemical proteomic analysis identifies significant arsenals of cellulases secreted by each fungal species during growth on lignocellulosic biomass. Recombinant production and characterization of a collection of probe-reactive enzymes from GH5, GH10, and GH12 confirm that ABP-Cel shows broad selectivity towards enzymes with endo-β-glucanase activity.
Conclusion
Using small-volume samples with minimal sample preparation, the results presented here demonstrate the ready accessibility of sensitive direct evidence for fungal enzyme secretion during early stages of growth on complex lignocellulosic substrates.
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Combined Biological and Chemical/Physicochemical Pretreatment Methods of Lignocellulosic Biomass for Bioethanol and Biomethane Energy Production—A Review. Appl Microbiol 2022. [DOI: 10.3390/applmicrobiol2040055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Lignocellulosic biomass is a low-cost and environmentally-friendly resource that can be used to produce biofuels such as bioethanol and biogas, which are the leading candidates for the partial substitution of fossil fuels. However, the main challenge of using lignocellulosic materials for biofuel production is the low accessibility to cellulose for hydrolysis of enzymes and microorganisms, which can be overcome by pretreatment. Biological and chemical pretreatments have their own disadvantages, which could be reduced by combining the two methods. In this article, we review biological–chemical combined pretreatment strategies for biogas and bioethanol production. The synergy of fungal/enzyme–NaOH pretreatment is the only biological–chemical combination studied for biogas production and has proven to be effective. The use of enzyme, which is relatively expensive, has the advantage of hydrolysis efficiency compared to fungi. Nonetheless, there is vast scope for research and development of other chemical–biological combinations for biogas production. With respect to ethanol production, fungal–organosolv combination is widely studied and can achieve a maximum of 82% theoretical yield. Order of pretreatment is also important, as fungi may reduce the accessibility of cellulose made available by prior chemical strategies and suppress lignin degradation. The biofuel yield of similarly pretreated biomass can vary depending on the downstream process. Therefore, new strategies, such as bioaugmentation and genetically engineered strains, could help to further intensify biofuel yields.
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Cai Y, Li H, Qu G, Li J, Ren N, Zou H, Hu Y, Zeng J. Research on the electrochemistry synergied cellulase enzymes strengthens the anaerobic fermentation of cow dung. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:55174-55186. [PMID: 35316492 DOI: 10.1007/s11356-022-19802-x] [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] [Received: 09/10/2021] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Lignocellulose degradation (LCD) was the key factor limiting the development of anaerobic fermentation (AF) by the cow dung (CD). In the research, the effects of cellulase pretreatment (CP) and microvoltage (MV) alone and combination on the gas production and LCD during the AF were investigated. The results showed that both CP and MV had an significant effect on the AF, though the synergistic reaction was more pronounced. The total biogas yield (TBY) could reach 11521 mL, and the highest methane production rate was 73% in the synergistic reactions, which was increased by 18.7% and 10.0% compared to CP and MV alone respectively. Meanwhile, the degradation rates of cellulose and lignin could be increased by 33.44% and 22.23%, respectively. The results of SEM, FT-IR and excitation emission matrix demonstrated that CP and MV played an important role in improving the fermentation efficiency. The microbial biomass change results indicated that the synergistic effect of CP and 0.8 V MV on the LCD was achieved by promoting the growth of lignocellulose-degrading bacteria. Moreover, the electricity could not only accelerate the movement of microorganisms and enzymes, but also promoted and enhanced the activity of enzymes, which provided an important reference for further development of the AF technology and the biogas industry.
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Affiliation(s)
- Yingying Cai
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Heng Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Guangfei Qu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China.
| | - Junyan Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Nanqi Ren
- School of Environment, Harbin Institute of Technology, Harbin, 150000, Heilongjiang, China
| | - Hongmei Zou
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Yinghui Hu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
| | - Jinhua Zeng
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, Yunnan, China
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12
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Low Indirect Land Use Change (ILUC) Energy Crops to Bioenergy and Biofuels—A Review. ENERGIES 2022. [DOI: 10.3390/en15124348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Energy crops are dedicated cultures directed for biofuels, electricity, and heat production. Due to their tolerance to contaminated lands, they can alleviate and remediate land pollution by the disposal of toxic elements and polymetallic agents. Moreover, these crops are suitable to be exploited in marginal soils (e.g., saline), and, therefore, the risk of land-use conflicts due to competition for food, feed, and fuel is reduced, contributing positively to economic growth, and bringing additional revenue to landowners. Therefore, further study and investment in R&D is required to link energy crops to the implementation of biorefineries. The main objective of this study is to present a review of the potential of selected energy crops for bioenergy and biofuels production, when cultivated in marginal/degraded/contaminated (MDC) soils (not competing with agriculture), contributing to avoiding Indirect Land Use Change (ILUC) burdens. The selected energy crops are Cynara cardunculus, Arundo donax, Cannabis sativa, Helianthus tuberosus, Linum usitatissimum, Miscanthus × giganteus, Sorghum bicolor, Panicum virgatum, Acacia dealbata, Pinus pinaster, Paulownia tomentosa, Populus alba, Populus nigra, Salix viminalis, and microalgae cultures. This article is useful for researchers or entrepreneurs who want to know what kind of crops can produce which biofuels in MDC soils.
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Ben Atitallah I, Antonopoulou G, Ntaikou I, Soto Beobide A, Dracopoulos V, Mechichi T, Lyberatos G. A Comparative Study of Various Pretreatment Approaches for Bio-Ethanol Production from Willow Sawdust, Using Co-Cultures and Mono-Cultures of Different Yeast Strains. Molecules 2022; 27:molecules27041344. [PMID: 35209130 PMCID: PMC8875012 DOI: 10.3390/molecules27041344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 11/16/2022] Open
Abstract
The effect of different pretreatment approaches based on alkali (NaOH)/hydrogen peroxide (H2O2) on willow sawdust (WS) biomass, in terms of delignification efficiency, structural changes of lignocellulose and subsequent fermentation toward ethanol, was investigated. Bioethanol production was carried out using the conventional yeast Saccharomyces cerevisiae, as well as three non-conventional yeasts strains, i.e., Pichia stipitis, Pachysolen tannophilus, Wickerhamomyces anomalus X19, separately and in co-cultures. The experimental results showed that a two-stage pretreatment approach (NaOH (0.5% w/v) for 24 h and H2O2 (0.5% v/v) for 24 h) led to higher delignification (38.3 ± 0.1%) and saccharification efficiency (31.7 ± 0.3%) and higher ethanol concentration and yield. Monocultures of S. cerevisiae or W. anomalus X19 and co-cultures with P. stipitis exhibited ethanol yields in the range of 11.67 ± 0.21 to 13.81 ± 0.20 g/100 g total solids (TS). When WS was subjected to H2O2 (0.5% v/v) alone for 24 h, the lowest ethanol yields were observed for all yeast strains, due to the minor impact of this treatment on the main chemical and structural WS characteristics. In order to decide which is the best pretreatment approach, a detailed techno-economical assessment is needed, which will take into account the ethanol yields and the minimum processing cost.
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Affiliation(s)
- Imen Ben Atitallah
- Laboratory of Biochemistry and Enzyme Engineering of Lipases, National School of Engineers of Sfax, University of Sfax, BP 1173, Sfax 3038, Tunisia; (I.B.A.); (T.M.)
| | - Georgia Antonopoulou
- Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou, Platani, GR 26504 Patras, Greece; (I.N.); (A.S.B.); (V.D.); (G.L.)
- Correspondence: ; Tel.: +30-261-096-5318
| | - Ioanna Ntaikou
- Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou, Platani, GR 26504 Patras, Greece; (I.N.); (A.S.B.); (V.D.); (G.L.)
| | - Amaia Soto Beobide
- Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou, Platani, GR 26504 Patras, Greece; (I.N.); (A.S.B.); (V.D.); (G.L.)
| | - Vassilios Dracopoulos
- Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou, Platani, GR 26504 Patras, Greece; (I.N.); (A.S.B.); (V.D.); (G.L.)
| | - Tahar Mechichi
- Laboratory of Biochemistry and Enzyme Engineering of Lipases, National School of Engineers of Sfax, University of Sfax, BP 1173, Sfax 3038, Tunisia; (I.B.A.); (T.M.)
| | - Gerasimos Lyberatos
- Institute of Chemical Engineering Sciences (FORTH/ICE-HT), Stadiou, Platani, GR 26504 Patras, Greece; (I.N.); (A.S.B.); (V.D.); (G.L.)
- School of Chemical Engineering, National Technical University of Athens, GR 15780 Athens, Greece
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Peguero DA, Gold M, Vandeweyer D, Zurbrügg C, Mathys A. A Review of Pretreatment Methods to Improve Agri-Food Waste Bioconversion by Black Soldier Fly Larvae. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2021.745894] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
As the world population increases, food demand and agricultural activity will also increase. However, ~30–40% of the food produced today is lost or wasted along the production chain. Increasing food demands would only intensify the existing challenges associated with agri-food waste management. An innovative approach to recover the resources lost along the production chain and convert them into value-added product(s) would be beneficial. An alternative solution is the use of the larvae of the black soldier fly (BSFL), Hermetia illucens L., which can grow and convert a wide range of organic waste materials into insect biomass with use as animal feed, fertilizer and/or bioenergy. However, the main concern when creating an economically viable business is the variability in BSFL bioconversion and processing due to the variability of the substrate. Many factors, such as the nutritional composition of the substrate heavily impact BSFL development. Another concern is that substrates with high lignin and cellulose contents have demonstrated poor digestibility by BSFL. Studies suggest that pretreatment methods may improve the digestibility and biodegradability of the substrate by BSFL. However, a systematic review of existing pretreatment methods that could be used for enhancing the bioconversion of these wastes by BSFL is lacking. This paper provides a state-of-the-art review on the potential pretreatment methods that may improve the digestibility of substrates by BSFL and consequently the production of BSFL. These processes include but are not limited to, physical (e.g., mechanical and thermal), chemical (alkaline treatments), and biological (bacterial and fungal) treatments.
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15
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Saini S, Sharma KK. Fungal lignocellulolytic enzymes and lignocellulose: A critical review on their contribution to multiproduct biorefinery and global biofuel research. Int J Biol Macromol 2021; 193:2304-2319. [PMID: 34800524 DOI: 10.1016/j.ijbiomac.2021.11.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/27/2021] [Accepted: 11/10/2021] [Indexed: 01/15/2023]
Abstract
The continuous increase in the global energy demand has diminished fossil fuel reserves and elevated the risk of environmental deterioration and human health. Biorefinery processes involved in producing bio-based energy-enriched chemicals have paved way to meet the energy demands. Compared to the thermochemical processes, fungal system biorefinery processes seems to be a promising approach for lignocellulose conversion. It also offers an eco-friendly and energy-efficient route for biofuel generation. Essentially, ligninolytic white-rot fungi and their enzyme arsenals degrade the plant biomass into structural constituents with minimal by-products generation. Hemi- or cellulolytic enzymes from certain soft and brown-rot fungi are always favoured to hydrolyze complex polysaccharides into fermentable sugars and other value-added products. However, the cost of saccharifying enzymes remains the major limitation, which hinders their application in lignocellulosic biorefinery. In the past, research has been focused on the role of lignocellulolytic fungi in biofuel production; however, a cumulative study comprising the contribution of the lignocellulolytic enzymes in biorefinery technologies is still lagging. Therefore, the overarching goal of this review article is to discuss the major contribution of lignocellulolytic fungi and their enzyme arsenal in global biofuel research and multiproduct biorefinery.
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Affiliation(s)
- Sonu Saini
- Laboratory of Enzymology and Recombinant DNA Technology, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
| | - Krishna Kant Sharma
- Laboratory of Enzymology and Recombinant DNA Technology, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India.
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16
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Nyári J, Kakuk B, Bagi Z, Rákhely G, Kovács KL. Use of ensiled green willow biomass in biogas fermentation. Biol Futur 2021; 72:263-271. [PMID: 34554482 DOI: 10.1007/s42977-021-00067-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 01/12/2021] [Indexed: 11/29/2022]
Abstract
The biggest challenges of our era include climate change and the global fossil energy problem. Extensive utilization of renewable energy sources should be a part of the solution for both these problems. Biogas is a versatile renewable energy carrier that has the potential to substitute fossil fuels. The most frequently utilized substrates for the anaerobic digestion (AD) process include maize silage today, but there is an increasing demand for second-generation biomass sources, which are cheaper and do not interfere with the cultivation of food production. Green biomass from short rotation coppice willow (GWB) may be a promising alternative. However, to ensure feedstock quantity and quality all year round, a preservation method has to be developed. We attempted to ensilage the biomass and subsequently utilized the resulting willow-silage in batch fermenters. Various mixtures of lactic acid bacteria were employed to facilitate ensiling by inoculation of the substrate in anaerobic jars for 60 days. During the ensiling analytical investigations, (HPLC, pH, oTS/TS%) were carried out in order to follow the build-up of fermentation products. AD fermentations were assembled from the ensilaged biomass and the methane production was measured for 56 days. The total methane yields of the ensilaged biomass were 8-15% higher than that of the fresh biomass and methane production rates were also improved. Our findings suggest that ensiling is not only an excellent preservation method for willow biomass, but also stimulates its AD.
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Affiliation(s)
- József Nyári
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Balázs Kakuk
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Zoltán Bagi
- Department of Biotechnology, University of Szeged, Szeged, Hungary
| | - Gábor Rákhely
- Department of Biotechnology, University of Szeged, Szeged, Hungary.,Biological Research Center, Hungarian Academy of Sciences, Institute of Biophysics, Szeged, Hungary
| | - Kornél L Kovács
- Department of Biotechnology, University of Szeged, Szeged, Hungary. .,Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary.
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17
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Szűcs C, Kovács E, Bagi Z, Rákhely G, Kovács KL. Enhancing biogas production from agroindustrial waste pre-treated with filamentous fungi. Biol Futur 2021; 72:341-346. [PMID: 34554554 DOI: 10.1007/s42977-021-00083-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 04/05/2021] [Indexed: 11/28/2022]
Abstract
Biogas is the product of anaerobic digestion (AD) of organic waste and is considered to be one of the most valuable natural renewable energy carriers. Plant biomass represents the most abundant eco-friendly energy reservoir on Earth. However, the tenacious and heterogeneous structure of the lignocellulose-rich elements makes it difficult for the involved microbes to digest the recalcitrant substrates. Both the degradation process and the biogas production yield can be enhanced by appropriate pre-treatment of lignocellulosic materials. Filamentous fungi have been known as proficient colonizers of lignocellulosic plant tissues and have been recognized as producers of exceptionally rich and diverse hydrolytic enzymes. We tested Aspergillus nidulans, Trichoderma reesei, Rhizomucor miehei and Gilbertella persicaria filamentous fungal strains for pre-treatment of various agricultural lignocellulosic wastes. During the pre-treatment phase, the β-glucosidase and endoglucanase activity was measured spectrophotometrically. In the AD step, methane production was monitored by gas chromatography. The preliminary results showed that all the applied strains (Aspergillus nidulans, Trichoderma reesei, Rhizomucor miehei and Gilbertella persicaria) were highly effective in producing both β-glucosidase and endo-(1,4)-β-D-glucanase enzymes, which might explain the greatly improved AD results. Pre-treatment with the above-mentioned filamentous fungi positively affected the biogas production, although the effect strongly depended on the selection of the fungal partner for any given biomass substrate. Depending on the used substrate and the pre-treatment strain, overall methane yields were elevated two-fold relative to the controls.
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Affiliation(s)
- Csilla Szűcs
- Department of Biotechnology, University of Szeged, Közép fasor 52, Szeged, 6726, Hungary.
| | - Etelka Kovács
- Department of Biotechnology, University of Szeged, Közép fasor 52, Szeged, 6726, Hungary
| | - Zoltán Bagi
- Department of Biotechnology, University of Szeged, Közép fasor 52, Szeged, 6726, Hungary
| | - Gábor Rákhely
- Department of Biotechnology, University of Szeged, Közép fasor 52, Szeged, 6726, Hungary.,Institute of Biophysics, Biological Research Centre, Temesvári krt. 62, Szeged, 6726, Hungary
| | - Kornél L Kovács
- Department of Biotechnology, University of Szeged, Közép fasor 52, Szeged, 6726, Hungary.,Department of Oral Biology and Experimental Dental Research, University of Szeged, Tisza Lajos körút 64-66, Szeged, 6720, Hungary
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18
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Kakuk B, Bagi Z, Rákhely G, Maróti G, Dudits D, Kovács KL. Methane production from green and woody biomass using short rotation willow genotypes for bioenergy generation. BIORESOURCE TECHNOLOGY 2021; 333:125223. [PMID: 33940504 DOI: 10.1016/j.biortech.2021.125223] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
Short rotation plantations of willow genotypes, harvested in vegetative growth phases, were tested as an alternative biomass for methane production. The substrate characteristics, maximal methane yields (K) and highest methane production rates (µmax) were determined. Leaves and stems from diploid Energo (EN) and tetraploid (PP) plants, harvested in June were superior methane sources to woody tissue. This could be related to the lower lignin contents in green willow. Fermentation of pooled biomasses from tetraploid genotypes harvested in June-August was more efficient than methane production from diploid tissues. Microbial community analyses by 16S rRNA genes showed a dominance of the order Clostridiales. In field study, based on Energo plantation, the maximum in green biomass accumulation was in early month 9 of the vegetation period. A theoretical calculation showed similar or better energy potential per unit area for willow than in the case of maize silage. This study encourages the use of green willow biomass as feedstock in biomethanation processes due to its relatively low production costs and uncomplicated agricultural practice.
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Affiliation(s)
- Balázs Kakuk
- Department of Medical Biology, University of Szeged, Hungary; Department of Biotechnology, University of Szeged, Hungary
| | - Zoltán Bagi
- Department of Biotechnology, University of Szeged, Hungary
| | - Gábor Rákhely
- Department of Biotechnology, University of Szeged, Hungary; Environmental Research Institute, University of Szeged, Szeged, Hungary
| | - Gergely Maróti
- Institute of Plant Biology, Biological Research Center, Szeged, Hungary
| | - Dénes Dudits
- Institute of Plant Biology, Biological Research Center, Szeged, Hungary.
| | - Kornél L Kovács
- Department of Biotechnology, University of Szeged, Hungary; Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary.
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Meenakshisundaram S, Fayeulle A, Leonard E, Ceballos C, Pauss A. Fiber degradation and carbohydrate production by combined biological and chemical/physicochemical pretreatment methods of lignocellulosic biomass - A review. BIORESOURCE TECHNOLOGY 2021; 331:125053. [PMID: 33827779 DOI: 10.1016/j.biortech.2021.125053] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 05/10/2023]
Abstract
Sustainable biorefinery concepts based on lignocellulosic biomass are gaining worldwide research interest because of their inexpensiveness and abundance. The recalcitrance of lignocellulosic biomass poses a major hindrance to enhance biofuel production. Therefore, a pretreatment step is critical to prepare the substrates for the downstream process. Combining pretreatment steps help to lower the severity of the drawbacks of a single pretreatment step. This paper systematically reviews the combined biological and chemical/physicochemical pretreatment based on fiber degradation and sugar yield. An energy-efficient biological pretreatment method combined with a chemical pretreatment that accelerates the pretreatment times has been seen to be efficient for fiber degradation and sugar yields. However, fungal species, culture conditions, biomass type, the severity of chemical pretreatment and the order of sequential pretreatment influences the relative component contents and sugar yield. Even the same biomass from different sources undergoing similar pretreatment conditions could result in a varying amount of digestibility.
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Affiliation(s)
- S Meenakshisundaram
- Université de technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de recherche Royallieu - CS 60 319, F-60 203 Compiègne Cedex, France
| | - A Fayeulle
- Université de technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de recherche Royallieu - CS 60 319, F-60 203 Compiègne Cedex, France
| | - E Leonard
- Université de technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de recherche Royallieu - CS 60 319, F-60 203 Compiègne Cedex, France
| | - C Ceballos
- Université de technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de recherche Royallieu - CS 60 319, F-60 203 Compiègne Cedex, France
| | - A Pauss
- Université de technologie de Compiègne, ESCOM, TIMR (Integrated Transformations of Renewable Matter), Centre de recherche Royallieu - CS 60 319, F-60 203 Compiègne Cedex, France
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20
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Ntaikou I, Siankevich S, Lyberatos G. Effect of thermo-chemical pretreatment on the saccharification and enzymatic digestibility of olive mill stones and their bioconversion towards alcohols. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:24570-24579. [PMID: 32557020 DOI: 10.1007/s11356-020-09625-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
The present study investigated the effect of thermo-chemical pretreatment on the enhancement of enzymatic digestibility of olive mill stones (OMS), as well as its possible valorisation via bioconversion of the generated free sugars to alcohols. Specifically, the influence of parameters such as reaction time, temperature, type and concentration of dilute acids and/or bases, was assessed during the thermo-chemical pretreatment. The hydrolysates and the solids remaining after pretreatment, as well as the whole pretreated slurries, were further evaluated as potential substrates for the simultaneous production of ethanol and xylitol via fermentation with the yeast Pachysolen tannophilus. The digestibility and overall saccharification of OMS were considerably enhanced in all cases, with the maximum enzymatic digestibility observed for dilute sodium hydroxide (almost 4-fold) which also yielded the highest total saccharification yield (91% of the total OMS carbohydrates). Ethanol and xylitol yields from the untreated OMS were 28 g/kg OMS and 25 g/kg OMS, respectively, and were both significantly enhanced by pretreatment. The highest ethanol yield was 79 g/kg OMS and was achieved by the alkali pretreatment and separate fermentation of hydrolysates and solids, whereas the highest xylitol yield was 49 g/kg OMS and was obtained by pretreatment with sulphuric acid and separate fermentation of hydrolysates and solids.
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Affiliation(s)
- Ioanna Ntaikou
- Foundation for Research and Technology, Institute of Chemical Engineering Sciences, Stadiou 10, Platani, GR 50600, Patras, Greece.
| | - Sviatlana Siankevich
- Foundation for Research and Technology, Institute of Chemical Engineering Sciences, Stadiou 10, Platani, GR 50600, Patras, Greece
- Embion Technologies SA, Chemin de la Dent-d'Oche 1 A, Ecublens VD, 1024, Vaud, Switzerland
| | - Gerasimos Lyberatos
- Foundation for Research and Technology, Institute of Chemical Engineering Sciences, Stadiou 10, Platani, GR 50600, Patras, Greece
- School of Chemical Engineering Sciences, National Technical University of Athens, GR 15780, Athens, Greece
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21
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Davarazar M, Kamali M, Lopes I. Engineered nanomaterials for (waste)water treatment - A scientometric assessment and sustainability aspects. NANOIMPACT 2021; 22:100316. [PMID: 35559973 DOI: 10.1016/j.impact.2021.100316] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/07/2021] [Accepted: 04/07/2021] [Indexed: 06/15/2023]
Abstract
Application of nanomaterials for the treatment of effluents originated from various industrial and non-industrial sources, has been rapidly developed in recent decades. In this situation, there is a need for conclusive studies to identify the current status of the knowledge in this field and to promote the commercialization of such technologies by providing recommendations for future studies. In the present manuscript, a scientometric assessment on the progress made in this field has been performed and the results have been organized and discussed in terms of science statistics, research hotspots and trends, as well as the relevant sustainability aspects. Based on a set of keywords, identified through a pre-literature analysis, a total of 6539 documents were retrieved from the Web of Science (WoS) database and analyzed to achieve the main goals of this study. The results demonstrate that the studies in this field have been initiated since the beginning of the 2000s but were mainly performed in lab and pilot scales. Also, China and Iran were identified as the most contributing countries in this scientific area in terms of the number of publications. Among various types of engineered nanomaterials (ENMs), there has been especial attention for the application of iron-based nanomaterials as well as carbonaceous structures (such as graphene oxide and biochar). Besides, there are not still strong collaborations formed among researchers in this area worldwide. Regarding the research hotspots, the synthesis of green and sustainable nanomaterials (e.g., biosynthesis approaches) has received attention in recent years. The results can also demonstrate that the most widely studied pathway for the removal of pollutants from (waste)waters involves the adsorption of the pollutants using ENMs. Treatment of contaminants of emerging concern (CECs) as well as exploring the mechanisms involved in the treatment of contaminated (waste)waters using ENMs and the possible by-products are considered the current trends in the literature. Regarding the sustainability aspects of ENMs for (waste)water treatment, the results achieved in this study calls for in-depth sustainability studies, which consider parameters such as economic, environmental, and social aspects of nanomaterials utilization for (waste)water treatment purposes, besides the technical parameters, to push transferring such technologies from lab and pilot scales to large and real-scale applications.
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Affiliation(s)
- Mahsa Davarazar
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Mohammadreza Kamali
- Process and Environmental Technology Lab, Department of Chemical Engineering, KU Leuven, 2860 Sint-Katelijne-Waver, Belgium; CESAM - Center of Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Isabel Lopes
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; CESAM - Center of Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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Does Acid Addition Improve Liquid Hot Water Pretreatment of Lignocellulosic Biomass towards Biohydrogen and Biogas Production? SUSTAINABILITY 2020. [DOI: 10.3390/su12218935] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The effect of liquid hot water (LHW) pretreatment with or without acid addition (A-LHW) on the production of hydrogen—through dark fermentation (DF)—and methane—through anaerobic digestion (AD)—using three different lignocellulosic biomass types (sunflower straw (SS), grass lawn (GL), and poplar sawdust (PS)) was investigated. Both pretreatment methods led to hemicellulose degradation, but A-LHW resulted in the release of more potential inhibitors (furans and acids) than the LHW pretreatment. Biological hydrogen production (BHP) of the cellulose-rich solid fractions obtained after LHW and A-LHW pretreatment was enhanced compared to the untreated substrates. Due to the release of inhibitory compounds, LHW pretreatment led to higher biochemical methane potential (BMP) than A-LHW pretreatment when both separated fractions (liquid and solid) obtained after pretreatments were used for AD. The recovered energy in the form of methane with LHW pretreatment was 8.4, 12.5, and 7.5 MJ/kg total solids (TS) for SS, GL, and PS, respectively.
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Microorganisms and Enzymes Used in the Biological Pretreatment of the Substrate to Enhance Biogas Production: A Review. SUSTAINABILITY 2020. [DOI: 10.3390/su12177205] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The pretreatment of lignocellulosic biomass (LC biomass) prior to the anaerobic digestion (AD) process is a mandatory step to improve feedstock biodegradability and biogas production. An important potential is provided by lignocellulosic materials since lignocellulose represents a major source for biogas production, thus contributing to the environmental sustainability. The main limitation of LC biomass for use is its resistant structure. Lately, biological pretreatment (BP) gained popularity because they are eco-friendly methods that do not require chemical or energy input. A large number of bacteria and fungi possess great ability to convert high molecular weight compounds from the substrate into lower mass compounds due to the synthesis of microbial extracellular enzymes. Microbial strains isolated from various sources are used singly or in combination to break down the recalcitrant polymeric structures and thus increase biogasgeneration. Enzymatic treatment of LC biomass depends mainly on enzymes like hemicellulases and cellulases generated by microorganisms. The articles main purpose is to provide an overview regarding the enzymatic/biological pretreatment as one of the most potent techniques for enhancing biogas production.
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Effect of nanobubble water on anaerobic methane production from lignin. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04250-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Antonopoulou G. Designing Efficient Processes for Sustainable Bioethanol and Bio-Hydrogen Production from Grass Lawn Waste. Molecules 2020; 25:molecules25122889. [PMID: 32586042 PMCID: PMC7355486 DOI: 10.3390/molecules25122889] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/20/2020] [Accepted: 06/21/2020] [Indexed: 12/04/2022] Open
Abstract
The effect of thermal, acid and alkali pretreatment methods on biological hydrogen (BHP) and bioethanol production (BP) from grass lawn (GL) waste was investigated, under different process schemes. BHP from the whole pretreatment slurry of GL was performed through mixed microbial cultures in simultaneous saccharification and fermentation (SSF) mode, while BP was carried out through the C5yeast Pichia stipitis, in SSF mode. From these experiments, the best pretreatment conditions were determined and the efficiencies for each process were assessed and compared, when using either the whole pretreatment slurry or the separated fractions (solid and liquid), the separate hydrolysis and fermentation (SHF) or SSF mode, and especially for BP, the use of other yeasts such as Pachysolen tannophilus or Saccharomyces cerevisiae. The experimental results showed that pretreatment with 10 gH2SO4/100 g total solids (TS) was the optimum for both BHP and BP. Separation of solid and liquid pretreated fractions led to the highest BHP (270.1 mL H2/g TS, corresponding to 3.4 MJ/kg TS) and also BP (108.8 mg ethanol/g TS, corresponding to 2.9 MJ/kg TS) yields. The latter was achieved by using P. stipitis for the fermentation of the hydrolysate and S. serevisiae for the solid fraction fermentation, at SSF.
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Affiliation(s)
- Georgia Antonopoulou
- Institute of Chemical Engineering Sciences, Stadiou, Platani, 26504 Patras, Greece
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26
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Ali SS, Kornaros M, Manni A, Sun J, El-Shanshoury AERR, Kenawy ER, Khalil MA. Enhanced anaerobic digestion performance by two artificially constructed microbial consortia capable of woody biomass degradation and chlorophenols detoxification. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:122076. [PMID: 32004834 DOI: 10.1016/j.jhazmat.2020.122076] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/10/2020] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
Catalpa sawdust (CSW) is a promising biomass-based biofuel. However, the complex lignocellulosic structure limits its efficient utilization in biorefinery applications. It is even more so when chlorophenols (CPs), highly toxic organic substances widely used as wood preservatives, are present. Hence, it is crucial to develop effective and eco-friendly approaches to attain deconstruction of lignocellulose and chlorophenols simultaneously as well as to improve methane (CH4) production efficiently. This study might be the first to explore the performance of the novel constructed microbial consortia CS-5 and BC-4 on woody biomass degradation and CPs detoxification simultaneously with CH4 production. After the degradation of CSW and CPs for 15 days by C5-5 or BC-4, significant reduction in lignocellulosic components and CPs mixture was realized with a total weight loss of 69.2 and 56.3 % and CPs degradation of 89 and 95 %, respectively. The toxicity of individual or mixed CPs after 15 days of degradation was reduced by approximately 90 %. The synergistic action of CS-5 and BC-4 enhanced biogas and CH4 yields over 76 and 64 % respectively, higher than control. Furthermore, CH4 production increased by 113.7 % at the peak phase of AD process. Methanosataceae represented 45.1 % of the methanogenic Archaea in digester G-III.
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Affiliation(s)
- Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China; Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Michael Kornaros
- Laboratory of Biochemical Engineering & Environmental Technology (LBEET), Department of Chemical Engineering, University of Patras, 1 Karatheodori Str., University Campus, 26504, Patras, Greece
| | - Alessandro Manni
- Department of Industrial Engineering, University of Rome Tor Vergata, Italy
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | | | - El-Refaie Kenawy
- Polymer Research Group, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Maha A Khalil
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt; Biology Department, Faculty of Science, Taif University, Saudi Arabia
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Millati R, Wikandari R, Ariyanto T, Putri RU, Taherzadeh MJ. Pretreatment technologies for anaerobic digestion of lignocelluloses and toxic feedstocks. BIORESOURCE TECHNOLOGY 2020; 304:122998. [PMID: 32107151 DOI: 10.1016/j.biortech.2020.122998] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/04/2020] [Accepted: 02/08/2020] [Indexed: 05/12/2023]
Abstract
Several feedstocks for anaerobic digestion (AD) have challenges that hamper the success of AD with their low accessible surface area, biomass recalcitrance, and the presence of natural inhibitors. This paper presents different types of pretreatment to address those individual challenges and how they contribute to facilitate AD. Organosolv and ionic liquid pretreatments are effective to remove lignin without a significant defect on lignin structures. To deal with accessible surface area and crystallinity, comminution, steam explosion, pretreatment using N-methyl-morpholine-N-oxide methods are suggested. Moreover, solid extraction, simple aeration, and biological treatments are capable in removing natural inhibitors. Up to date, methods like comminution, thermal process, and grinding are more preferable to be scaled-up.
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Affiliation(s)
- Ria Millati
- Department of Food and Agricultural Product Technology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
| | - Rachma Wikandari
- Department of Food and Agricultural Product Technology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Teguh Ariyanto
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Rininta Utami Putri
- Department of Food and Agricultural Product Technology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
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28
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Usmani Z, Sharma M, Gupta P, Karpichev Y, Gathergood N, Bhat R, Gupta VK. Ionic liquid based pretreatment of lignocellulosic biomass for enhanced bioconversion. BIORESOURCE TECHNOLOGY 2020; 304:123003. [PMID: 32081446 DOI: 10.1016/j.biortech.2020.123003] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/06/2020] [Accepted: 02/08/2020] [Indexed: 05/12/2023]
Abstract
Lignocellulosic biomass is the most plentiful renewable biomolecule and an alternative bioresource for the production of biofuels and biochemicals in biorefineries. But biomass recalcitrance is a bottleneck in their usage, thus necessitating their pretreatment for hydrolysis. Most pretreatment technologies, result in toxic by-products or have lower yield. Ionic liquids (ILs) have successfully advanced as 'greener and recyclable' alternatives to volatile organic solvents for lignocellulosic biomass dissolution. This review covers recent developments made in usage of IL-based techniques with focus on biomass breakdown mechanism, process parameter design, impact of cation and anion groups, and the advantageous impact of ILs on the subsequent processing of the fractionated biomass. Progress and barriers for large-scale commercial usage of ILs in emerging biorefineries were critically evaluated using the principles of economies of scale and green chemistry in an environmentally sustainable way.
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Affiliation(s)
- Zeba Usmani
- Department of Chemistry and Biotechnology, Tallinn University of Technology, 12618 Tallinn, Estonia
| | - Minaxi Sharma
- ERA Chair for Food (By-) Products Valorization Technologies (VALORTECH), Estonian University of Life Sciences, Kreutzwaldi 56/5, 51006 Tartu, Estonia
| | - Pratishtha Gupta
- Applied Microbiology Laboratory, Department of Environmental Science and Engineering, Indian Institute of Technology (ISM), Dhanbad 826001, India
| | - Yevgen Karpichev
- Department of Chemistry and Biotechnology, Tallinn University of Technology, 12618 Tallinn, Estonia
| | - Nicholas Gathergood
- Department of Chemistry and Biotechnology, Tallinn University of Technology, 12618 Tallinn, Estonia; School of Chemistry, University of Lincoln, Joseph Banks Laboratories, Green Lane, Lincoln, Lincolnshire LN6 7DL, UK
| | - Rajeev Bhat
- ERA Chair for Food (By-) Products Valorization Technologies (VALORTECH), Estonian University of Life Sciences, Kreutzwaldi 56/5, 51006 Tartu, Estonia
| | - Vijai Kumar Gupta
- Department of Chemistry and Biotechnology, Tallinn University of Technology, 12618 Tallinn, Estonia; ERA Chair for Food (By-) Products Valorization Technologies (VALORTECH), Estonian University of Life Sciences, Kreutzwaldi 56/5, 51006 Tartu, Estonia.
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29
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McGregor NGS, Artola M, Nin-Hill A, Linzel D, Haon M, Reijngoud J, Ram A, Rosso MN, van der Marel GA, Codée JDC, van Wezel GP, Berrin JG, Rovira C, Overkleeft HS, Davies GJ. Rational Design of Mechanism-Based Inhibitors and Activity-Based Probes for the Identification of Retaining α-l-Arabinofuranosidases. J Am Chem Soc 2020; 142:4648-4662. [PMID: 32053363 PMCID: PMC7068720 DOI: 10.1021/jacs.9b11351] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
![]()
Identifying
and characterizing the enzymes responsible for an observed
activity within a complex eukaryotic catabolic system remains one
of the most significant challenges in the study of biomass-degrading
systems. The debranching of both complex hemicellulosic and pectinaceous
polysaccharides requires the production of α-l-arabinofuranosidases
among a wide variety of coexpressed carbohydrate-active enzymes. To
selectively detect and identify α-l-arabinofuranosidases
produced by fungi grown on complex biomass, potential covalent inhibitors
and probes which mimic α-l-arabinofuranosides were
sought. The conformational free energy landscapes of free α-l-arabinofuranose and several rationally designed covalent α-l-arabinofuranosidase inhibitors were analyzed. A synthetic
route to these inhibitors was subsequently developed based on a key
Wittig–Still rearrangement. Through a combination of kinetic
measurements, intact mass spectrometry, and structural experiments,
the designed inhibitors were shown to efficiently label the catalytic
nucleophiles of retaining GH51 and GH54 α-l-arabinofuranosidases.
Activity-based probes elaborated from an inhibitor with an aziridine
warhead were applied to the identification and characterization of
α-l-arabinofuranosidases within the secretome of A. niger grown on arabinan. This method was extended to
the detection and identification of α-l-arabinofuranosidases
produced by eight biomass-degrading basidiomycete fungi grown on complex
biomass. The broad applicability of the cyclophellitol-derived activity-based
probes and inhibitors presented here make them a valuable new tool
in the characterization of complex eukaryotic carbohydrate-degrading
systems and in the high-throughput discovery of α-l-arabinofuranosidases.
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Affiliation(s)
- Nicholas G S McGregor
- York Structural Biology Laboratory, Department of Chemistry, The University of York, Heslington, York YO10 5DD, U.K
| | - Marta Artola
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands
| | - Alba Nin-Hill
- Departament de Quı́mica Inorgànica i Orgànica (Secció de Quı́mica Orgànica) & Institut de Quı́mica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
| | - Daniël Linzel
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands
| | - Mireille Haon
- INRA, Aix Marseille University, Biodiversité et Biotechnologie Fongiques (BBF), UMR1163, F-13009 Marseille, France
| | - Jos Reijngoud
- Molecular Microbiology and Biotechnology, Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Arthur Ram
- Molecular Microbiology and Biotechnology, Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Marie-Noëlle Rosso
- INRA, Aix Marseille University, Biodiversité et Biotechnologie Fongiques (BBF), UMR1163, F-13009 Marseille, France
| | - Gijsbert A van der Marel
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands
| | - Jeroen D C Codée
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands
| | - Gilles P van Wezel
- Molecular Microbiology and Biotechnology, Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Jean-Guy Berrin
- INRA, Aix Marseille University, Biodiversité et Biotechnologie Fongiques (BBF), UMR1163, F-13009 Marseille, France
| | - Carme Rovira
- Departament de Quı́mica Inorgànica i Orgànica (Secció de Quı́mica Orgànica) & Institut de Quı́mica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), 08020 Barcelona, Spain
| | - Herman S Overkleeft
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands
| | - Gideon J Davies
- York Structural Biology Laboratory, Department of Chemistry, The University of York, Heslington, York YO10 5DD, U.K
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30
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The Effect of Mechanocatalytic Pretreatment on the Structure and Depolymerization of Willow. Catalysts 2020. [DOI: 10.3390/catal10020255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, the effect of a mechanocatalytic pretreatment on the structure of willow and sugar release from pretreated willow was explored. In the mechanocatalytic approach, the pretreatment consists of solvent-free impregnation with sulfuric acid and a mechanical treatment with ball milling. Willow sawdust and pretreated samples were analyzed with field emission scanning electron microscope and X-ray diffraction. The products in the sugar solution were determined as the total reducing sugars with the 3,5-dinitrosalicylic acid method and monosaccharides with capillary electrophoresis. According to the results, milling increased the sugar production, depending on the sulfuric acid load. The milling parameters, such as the rotation speed of the mill, the catalyst-to-willow ratio, and the milling time influenced the amount of sugars in the hydrolysate and the composition of the sugar solution produced. Changes were observed in the surface of the willow particles as well as changes in the crystalline structure. Glucose and xylose yields increased after 15 min of milling and reached their maximum level after 45 min of milling with the 0.5 mmol/g sulfuric acid load.
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31
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Antonopoulou G, Vayenas D, Lyberatos G. Biogas Production from Physicochemically Pretreated Grass Lawn Waste: Comparison of Different Process Schemes. Molecules 2020; 25:molecules25020296. [PMID: 31940836 PMCID: PMC7024254 DOI: 10.3390/molecules25020296] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/06/2020] [Accepted: 01/09/2020] [Indexed: 11/29/2022] Open
Abstract
Various pretreatment methods, such as thermal, alkaline and acid, were applied on grass lawn (GL) waste and the effect of each pretreatment method on the Biochemical Methane Potential was evaluated for two options, namely using the whole slurry resulting from pretreatment or the separate solid and liquid fractions obtained. In addition, the effect of each pretreatment on carbohydrate solubilization and lignocellulossic content fractionation (to cellulose, hemicellulose, lignin) was also evaluated. The experimental results showed that the methane yield was enhanced with alkaline pretreatment and, the higher the NaOH concentration (20 g/100 gTotal Solids (TS)), the higher was the methane yield observed (427.07 L CH4/kg Volatile Solids (VS), which was almost 25.7% higher than the BMP of the untreated GL). Comparing the BMP obtained under the two options, i.e., that of the whole pretreatment slurry with the sum of the BMPs of both fractions, it was found that direct anaerobic digestion without separation of the pretreated biomass was favored, in almost all cases. A preliminary energy balance and economic assessment indicated that the process could be sustainable, leading to a positive net heat energy only when using a more concentrated pretreated slurry (i.e., 20% organic loading), or when applying NaOH pretreatment at a lower chemical loading.
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Affiliation(s)
- Georgia Antonopoulou
- Institute of Chemical Engineering Sciences, Stadiou, Platani, GR 26504 Patras, Greece; (D.V.); (G.L.)
- Correspondence: ; Tel.: +30-26-1096-5318
| | - Dimitrios Vayenas
- Institute of Chemical Engineering Sciences, Stadiou, Platani, GR 26504 Patras, Greece; (D.V.); (G.L.)
- Department of Chemical Engineering, University of Patras, GR 26500 Patras, Greece
| | - Gerasimos Lyberatos
- Institute of Chemical Engineering Sciences, Stadiou, Platani, GR 26504 Patras, Greece; (D.V.); (G.L.)
- School of Chemical Engineering, National Technical University of Athens, GR 15780 Athens, Greece
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32
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Rahmati S, Doherty W, Dubal D, Atanda L, Moghaddam L, Sonar P, Hessel V, Ostrikov K(K. Pretreatment and fermentation of lignocellulosic biomass: reaction mechanisms and process engineering. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00241k] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
At a time of rapid depletion of oil resources, global food shortages and solid waste problems, it is imperative to encourage research into the use of appropriate pre-treatment techniques using regenerative raw materials such as lignocellulosic biomass.
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Affiliation(s)
- Shahrooz Rahmati
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
- Centre for Agriculture and the Bioeconomy
| | - William Doherty
- Centre for Agriculture and the Bioeconomy
- Institute for Future Environments
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
| | - Deepak Dubal
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
- Centre for Materials Science
| | - Luqman Atanda
- Centre for Agriculture and the Bioeconomy
- Institute for Future Environments
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
| | - Lalehvash Moghaddam
- Centre for Agriculture and the Bioeconomy
- Institute for Future Environments
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
| | - Prashant Sonar
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
- Centre for Agriculture and the Bioeconomy
| | - Volker Hessel
- School of Chemical Engineering and Advanced Materials
- The University of Adelaide
- Adelaide
- Australia
- School of Engineering
| | - Kostya (Ken) Ostrikov
- School of Chemistry and Physics
- Queensland University of Technology (QUT)
- Brisbane 4000
- Australia
- Centre for Agriculture and the Bioeconomy
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33
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Vannarath A, Thalla AK. Evaluation, ranking, and selection of pretreatment methods for the conversion of biomass to biogas using multi-criteria decision-making approach. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s10669-019-09749-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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34
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Antonopoulou G, Kampranis A, Ntaikou I, Lyberatos G. Enhancement of Liquid and Gaseous Biofuels Production From Agro-Industrial Residues After Thermochemical and Enzymatic Pretreatment. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2019. [DOI: 10.3389/fsufs.2019.00092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9183721] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lignocellulosic biomass is recalcitrant due to its heterogeneous structure, which is one of the major limitations for its use as a feedstock for methane production. Although different pretreatment methods are being used, intermediaries formed are known to show adverse effect on microorganisms involved in methane formation. This review, apart from highlighting the efficiency and limitations of the different pretreatment methods from engineering, chemical, and biochemical point of views, will discuss the strategies to increase the carbon recovery in the form of methane by way of amending pretreatments to lower inhibitory effects on microbial groups and by optimizing process conditions.
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36
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Schimpf U, Schulz R. Industrial by-products from white-rot fungi production. Part II: Application in anaerobic digestion for enzymatic treatment of hay and straw. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Nosratpour MJ, Karimi K, Sadeghi M. Improvement of ethanol and biogas production from sugarcane bagasse using sodium alkaline pretreatments. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 226:329-339. [PMID: 30125812 DOI: 10.1016/j.jenvman.2018.08.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/13/2018] [Accepted: 08/13/2018] [Indexed: 06/08/2023]
Abstract
Sugarcane bagasse was pretreated with sodium carbonate, sodium sulfite, and sodium acetate in concentrations of 0.5 M and 0.25 M, as well as hydrothermal pretreatment, to break down its structural recalcitrance and improve biogas and ethanol production. The pretreatments were conducted at 100, 140, and 180 °C for 1 h. The highest biogas and ethanol production was observed for sugarcane bagasse pretreated with 0.5 M sodium carbonate solution at 140 °C, which was 239 ± 20 Nml CH4/g VS, and 7.27 ± 0.70 g/l, respectively, containing gasoline equivalents of 164.2 ± 14.3 l/ton of raw bagasse and 147.8 ± 14.2 l/ton of raw bagasse, respectively. The highest gasoline equivalent was obtained for biogas production from the substrate pretreated with 0.5 M sodium sulfite solution at 100 °C (190.2 ± 2.1 l/ton of raw bagasse). In comparison to sodium carbonate and sodium sulfite, sodium acetate had less effect on biofuel production and was comparable with hydrothermal pretreatment. In contradiction to sodium acetate pretreated bagasse, in which increased pretreatment temperature intensified biofuel production, a reduction of biofuel production was observed for sodium carbonate and sodium sulfite pretreatment when temperature was increased from 140 to 180 °C. Besides considerable amounts of biofuel production at the best conditions obtained, over 762 and 543 kilotons of equivalent CO2 can be reduced annually in Iran by biogas and ethanol production from sugarcane, respectively.
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Affiliation(s)
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Morteza Sadeghi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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38
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Fungal Pretreatment of Willow Sawdust with Abortiporus biennis for Anaerobic Digestion: Impact of an External Nitrogen Source. SUSTAINABILITY 2017. [DOI: 10.3390/su9010130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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Wei S. The application of biotechnology on the enhancing of biogas production from lignocellulosic waste. Appl Microbiol Biotechnol 2016; 100:9821-9836. [PMID: 27761635 DOI: 10.1007/s00253-016-7926-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/02/2016] [Accepted: 10/05/2016] [Indexed: 12/11/2022]
Abstract
Anaerobic digestion of lignocellulosic waste is considered to be an efficient way to answer present-day energy crisis and environmental challenges. However, the recalcitrance of lignocellulosic material forms a major obstacle for obtaining maximum biogas production. The use of biological pretreatment and bioaugmentation for enhancing the performance of anaerobic digestion is quite recent and still needs to be investigated. This paper reviews the status and perspectives of recent studies on biotechnology concept and investigates its possible use for enhancing biogas production from lignocellulosic waste with main emphases on biological pretreatment and bioaugmentation techniques.
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Affiliation(s)
- Suzhen Wei
- Department of Resource and Environment, Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet, 860000, China.
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