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Gong L, Passari AK, Yin C, Kumar Thakur V, Newbold J, Clark W, Jiang Y, Kumar S, Gupta VK. Sustainable utilization of fruit and vegetable waste bioresources for bioplastics production. Crit Rev Biotechnol 2024; 44:236-254. [PMID: 36642423 DOI: 10.1080/07388551.2022.2157241] [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: 08/31/2022] [Revised: 11/05/2022] [Accepted: 11/11/2022] [Indexed: 01/17/2023]
Abstract
Nowadays, rapidly increasing production, use and disposable of plastic products has become one of the utmost environmental issues. Our current circumstances in which the food supply chain is demonstrated as containing plastic particles and other plastic-based impurities, represents a significant health risk to humans, animals, and environmental alike. According to this point of view, biodegradable plastic material aims to produce a more sustainable and greener world with a lower ecological impact. Bioplastics are being investigated as an environmentally friendly candidate to address this problem and hence global bioplastic production has seen significant growth and expansion in recent years. This article focuses on a few critical issues that must be addressed for bioplastic production to become commercially viable. Although the reduction of fruit and vegetable waste biomass has an apparent value in terms of environmental benefits and sustainability, commercial success at industrial scale has remained flat. This is due to various factors, including biomass feedstocks, pretreatment technologies, enzymatic hydrolysis, and scale-up issues in the industry, all of which contribute to high capital and operating costs. This review paper summarizes the global overview of bioplastics derived from fruit and vegetable waste biomass. Furthermore, economic and technical challenges associated with industrialization and diverse applications of bioplastics in biomedical, agricultural, and food-packaging fields due to their excellent biocompatibility properties are reviewed.HighlightsReview of the diverse types and characteristics of sustainability of biobased plasticsImproved pretreatment technologies can develop to enhance greater yieldEnzyme hydrolysis process used for bioplastic extraction & hasten industrial scale-upFocus on technical challenges facing commercialized the bioplasticsDetailed discussion on the application for sustainability of biodegradable plastics.
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Affiliation(s)
- Liang Gong
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China
| | - Ajit Kumar Passari
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Edinburgh, UK
| | - Chunxiao Yin
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Edinburgh, UK
- School of Engineering, University of Petroleum & Energy Studies (UPES), Uttarakhand, India
| | - John Newbold
- Dairy Research Centre, SRUC, Dumfries, United Kingdom
| | | | - Yueming Jiang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
- Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China
| | - Shanmugam Kumar
- James Watt School of Engineering, University of Glasgow, Glasgow, UK
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Edinburgh, UK
- Centre for Safe and Improved Foods, Scotland's Rural College (SRUC), Edinburgh, UK
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Moya EB, Syhler B, Manso JO, Dragone G, Mussatto SI. Enzymatic hydrolysis cocktail optimization for the intensification of sugar extraction from sugarcane bagasse. Int J Biol Macromol 2023:125051. [PMID: 37245744 DOI: 10.1016/j.ijbiomac.2023.125051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/06/2023] [Accepted: 05/18/2023] [Indexed: 05/30/2023]
Abstract
Lignocellulosic biomasses have a very important role as a raw material to produce biofuels and biochemicals. However, a sustainable, efficient, and economically competitive process for the release of sugars from such materials has still not been achieved. In this work, the optimization of the enzymatic hydrolysis cocktail was evaluated as an approach to maximize sugar extraction from mildly pretreated sugarcane bagasse. Different additives and enzymes, including hydrogen peroxide (H2O2), laccase, hemicellulase and the surfactants Tween 80 and PEG4000 were added to a cellulolytic cocktail with the aim of improving biomass hydrolysis. An increase of 39 % and 46 % of glucose and xylose concentrations, respectively, compared to the control (when only the cellulolytic cocktail (20 or 35 FPU g-1 dry mass), was obtained when H2O2 (0.24 mM) was added at the beginning of the hydrolysis. On the other hand, the addition of hemicellulase (81-162 μL g-1 DM) increased the production of glucose up to 38 % and xylose up to 50 %. The findings of this study reveal that it is possible to increase the extraction of sugars from mildly pretreated lignocellulosic biomass by using an appropriate enzymatic cocktail supplemented with additives. This opens up new opportunities for the development of a more sustainable, efficient, and economically competitive process for biomass fractionation.
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Affiliation(s)
- Eva Balaguer Moya
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kongens Lyngby, Denmark
| | - Berta Syhler
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kongens Lyngby, Denmark
| | - Julen Ordeñana Manso
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kongens Lyngby, Denmark
| | - Giuliano Dragone
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kongens Lyngby, Denmark
| | - Solange I Mussatto
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 223, 2800 Kongens Lyngby, Denmark.
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Farhan BA, Zhihe L, Ali S, Shah TA, Zhiyu L, Zhang A, Javed S, Asad M. Multiple strategies for the development of multienzyme complex for one-pot reactions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:64904-64931. [PMID: 37097560 DOI: 10.1007/s11356-023-27098-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 04/13/2023] [Indexed: 05/17/2023]
Abstract
The main intention in the modern era is to make life and activities on earth more comfortable by adding necessary products through biological machinery. Millions of tons of biological raw materials and lignocellulosic biomass are wasted by burning each year without providing benefits to living organisms. Instead of being the cause of disturbing the natural environment by increasing global warming and pollutants worldwide, now, it is the need of the hour to develop an advanced strategy to utilize these biological raw materials to produce renewable energy resources to meet the energy crisis. The review presents the idea of multiple enzymes in one step to hydrolyze complex biomaterials into useful products. The paper discusses how multiple enzymes are arranged in a cascade for complete hydrolysis of raw material in one-pot to prevent multistep, time consuming, and expensive methods. Furthermore, there was the immobilization of multiple enzymes in a cascade system with in vitro and in vivo conditions for reusability of enzymes. The role of genetic engineering, metabolic engineering, and random mutation techniques is described for the development of multiple enzyme cascades. Techniques that are involved in the improvement of native strain to recombinant strain for the enhancement of hydrolytic capacity were used. The preparative steps, before enzymatic hydrolysis like acid, and base treatment methods are more effective for improving the hydrolysis of biomass by multiple enzymes in a one-pot system. Finally, the applications of one-pot multienzyme complexes in biofuel production from lignocellulosic biomass, biosensor production, medicine, food industry, and the conversion of biopolymers into useful products are described.
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Affiliation(s)
- Bahzad Ahmad Farhan
- Institute of Biological Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Li Zhihe
- College of Agriculture Engineering and Food Sciences, Shandong University of Technology, Zibo, 255000, China
| | - Shehbaz Ali
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Tawaf Ali Shah
- College of Agriculture Engineering and Food Sciences, Shandong University of Technology, Zibo, 255000, China.
| | - Li Zhiyu
- College of Agriculture Engineering and Food Sciences, Shandong University of Technology, Zibo, 255000, China
| | - Andong Zhang
- College of Agriculture Engineering and Food Sciences, Shandong University of Technology, Zibo, 255000, China
| | - Sadia Javed
- Department of Biochemistry, Government College University, Faisalabad, Pakistan
| | - Muhammad Asad
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
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Enzymatic Hydrolysis Strategies for Cellulosic Sugars Production to Obtain Bioethanol from Eucalyptus globulus Bark. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9030241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Cellulosic sugars production for the valorization of lignocellulosic biomass residues in an industrial site has economic benefits and is promising if integrated into a biorefinery. Enzymatic hydrolysis (EH) of pretreated Eucalyptus globulus bark, an industrial residue of low-economic value widely available in Portuguese pulp and paper mills, could be an excellent approach to attain resource circularity and pulp mill profitability. This work evaluated the potential for improving cellulosic sugars concentrations by operating with high solids loading and introducing the additives Triton X-100, PEG 4000 and Tween 80 using a commercial enzymatic consortium with a dosage of 25 FPU gcarbohydrates−1. Additives did not improve enzymatic hydrolysis performance, but the effect of increasing solids loading to 14% (w/v) in batch operation was accomplished. The fed-batch operation strategy was investigated and, when starting with 11% (w/v) solids loading, allowed the feeding of 3% (w/v) fresh feedstock sequentially at 2, 4 and 6 h, attaining 20% (w/v) total solids loading. After 24 h of operation, the concentration of cellulosic sugars reached 161 g L−1, corresponding to an EH conversion efficiency of 76%. Finally, the fermentability of the fed-batch hydrolysate using the Ethanol Red® strain was evaluated in a 5 L bioreactor scale. The present results demonstrate that Eucalyptus globulus bark, previously pretreated by kraft pulping, is a promising feedstock for cellulosic sugars production, allowing it to become the raw material for feeding a wide range of bioprocesses.
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Lignocellulosic Biorefinery Technologies: A Perception into Recent Advances in Biomass Fractionation, Biorefineries, Economic Hurdles and Market Outlook. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9030238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Lignocellulosic biomasses (LCB) are sustainable and abundantly available feedstocks for the production of biofuel and biochemicals via suitable bioconversion processing. The main aim of this review is to focus on strategies needed for the progression of viable lignocellulosic biomass-based biorefineries (integrated approaches) to generate biofuels and biochemicals. Processing biomass in a sustainable manner is a major challenge that demands the accomplishment of basic requirements relating to cost effectiveness and environmental sustainability. The challenges associated with biomass availability and the bioconversion process have been explained in detail in this review. Limitations associated with biomass structural composition can obstruct the feasibility of biofuel production, especially in mono-process approaches. In such cases, biorefinery approaches and integrated systems certainly lead to improved biofuel conversion. This review paper provides a summary of mono and integrated approaches, their limitations and advantages in LCB bioconversion to biofuel and biochemicals.
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Daddaoua A, Álvarez C, Oggerin M, Rodriguez N, Duque E, Amils R, Armengaud J, Segura A, Ramos JL. Rio Tinto as a niche for acidophilus enzymes of industrial relevance. Microb Biotechnol 2023; 16:1069-1086. [PMID: 36748404 PMCID: PMC10128141 DOI: 10.1111/1751-7915.14192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 11/06/2022] [Indexed: 02/08/2023] Open
Abstract
Lignocellulosic residues are amongst the most abundant waste products on Earth. Therefore, there is an increasing interest in the utilization of these residues for bioethanol production and for biorefineries to produce compounds of industrial interest. Enzymes that breakdown cellulose and hemicellulose into oligomers and monosaccharides are required in these processes and cellulolytic enzymes with optimum activity at a low pH area are desirable for industrial processes. Here, we explore the fungal biodiversity of Rıo Tinto, the largest acidic ecosystem on Earth, as far as the secretion of cellulolytic enzymes is concerned. Using colorimetric and industrial substrates, we show that a high proportion of the fungi present in this extremophilic environment secrete a wide range of enzymes that are able to hydrolyze cellulose and hemicellulose at acidic pH (4.5-5). Shotgun proteomic analysis of the secretomes of some of these fungi has identified different cellulases and hemicellulolytic enzymes as well as a number of auxiliary enzymes. Supplementation of pre-industrial cocktails from Myceliophtora with Rio Tinto secretomes increased the amount of monosaccharides released from corn stover or sugar cane straw. We conclude that the Rio Tinto fungi display a good variety of hydrolytic enzymes with high industrial potential.
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Affiliation(s)
- Abdelali Daddaoua
- Department of Biochemistry and Molecular Biology II, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - Consolación Álvarez
- Instituto de Bioquímica Vegetal y Fotosíntesis (CSIC-US), Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, CIC Cartuja, Seville, Spain
| | - Monika Oggerin
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma de Madrid, Madrid, Spain
| | - Nuria Rodriguez
- Centro de Astrobiología (INTA-CSIC), Torrejón de Ardoz, Spain
| | - Estrella Duque
- Estación Experimental del Zaidín (EEZ-CSIC), Granada, Spain
| | - Ricardo Amils
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Astrobiología (INTA-CSIC), Torrejón de Ardoz, Spain
| | - Jean Armengaud
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, CEA, INRAE, Bagnols-sur-Cèze, France
| | - Ana Segura
- Estación Experimental del Zaidín (EEZ-CSIC), Granada, Spain
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Additives Enhancing Enzymatic Hydrolysis of Wheat Straw to Obtain Fermentable Sugar. Appl Biochem Biotechnol 2023; 195:1059-1071. [PMID: 36308636 DOI: 10.1007/s12010-022-04200-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2022] [Indexed: 01/24/2023]
Abstract
In order to explore the effect of additives on enzymatic hydrolysis of lignocellulose biomass, the effect of two different additives, Triton X-100 (TX-100) and Bovine serum albumin (BSA), enzyme dosages, and additive concentrations on enzymatic hydrolysis to obtain fermentable sugar using cellulose extracted from wheat straw (WS) as the substrate was investigated in this study. An enzymatic hydrolysis kinetic model was used to successfully describe the enzymatic hydrolysis in a heterogeneous system. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) were used to determine the effect of extraction and enzymatic hydrolysis on the composition and structure of the samples. The results showed that the total reducing sugar concentration of the raw was 1.535 g/L at 120 h, but that of the extracted cellulose (EC) increased to 5.087 g/L at 120 h, indicating that EC from WS is more conducive to enzymatic hydrolysis compared with the raw. The total reducing sugar concentration with the addition of the TX-100 was 6.737 g/L at 120 h, which was greater than that with the addition of the BSA (5.728 g/L at 120 h), indicating that the addition of two additives improved the enzymatic hydrolysis efficiency, especially TX-100. The kinetic studies showed that the initial enzymatic hydrolysis reaction rate (Km) of the EC was more than four times greater than that of the raw. The Km of the EC added with TX-100 and BSA were increased by 29.50% and 22.89% compared with that of the EC without the addition of additive. The addition of additives is an effective method for enhancing enzymatic hydrolysis efficiency and fermentable sugar production from lignocellulosic biomass.
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Madadi M, Song G, Sun F, Sun C, Xia C, Zhang E, Karimi K, Tu M. Positive role of non-catalytic proteins on mitigating inhibitory effects of lignin and enhancing cellulase activity in enzymatic hydrolysis: Application, mechanism, and prospective. ENVIRONMENTAL RESEARCH 2022; 215:114291. [PMID: 36103929 DOI: 10.1016/j.envres.2022.114291] [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: 05/25/2022] [Revised: 08/18/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Fermentable sugar production from lignocellulosic biomass has received considerable attention and has been dramatic progress recently. However, due to low enzymatic hydrolysis (EH) yields and rates, a high dosage of the costly enzyme is required, which is a bottleneck for commercial applications. Over the last decades, various strategies have been developed to reduce cellulase enzyme costs. The progress of the non-catalytic additive proteins in mitigating inhibition in EH is discussed in detail in this review. The low efficiency of EH is mostly due to soluble lignin compounds, insoluble lignin, and harsh thermal and mechanical conditions of the EH process. Adding non-catalytic proteins into the EH is considered a simple and efficient approach to boost hydrolysis yield. This review discussed the multiple mechanical steps involved in the EH process. The effect of physicochemical properties of modified lignin on EH and its interaction with cellulase and cellulose are identified and discussed, which include hydrogen bonding, hydrophobic, electrostatic, and cation-π interactions, as well as physical barriers. Moreover, the effects of different conditions of EH that lead to cellulase deactivation by thermal and mechanical mechanisms are also explained. Finally, recent advances in the development, potential mechanisms, and economic feasibility of non-catalytic proteins on EH are evaluated and perspectives are presented.
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Affiliation(s)
- Meysam Madadi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Guojie Song
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Fubao Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China.
| | - Chihe Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China
| | - Changlei Xia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Ezhen Zhang
- Institute of Agro-Products Processing Science and Technology, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Keikhosro Karimi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Maobing Tu
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH, 45221, United States
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Surfactants, Biosurfactants, and Non-Catalytic Proteins as Key Molecules to Enhance Enzymatic Hydrolysis of Lignocellulosic Biomass. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238180. [PMID: 36500273 PMCID: PMC9739445 DOI: 10.3390/molecules27238180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
Lignocellulosic biomass (LCB) has remained a latent alternative resource to be the main substitute for oil and its derivatives in a biorefinery concept. However, its complex structure and the underdeveloped technologies for its large-scale processing keep it in a state of constant study trying to establish a consolidated process. In intensive processes, enzymes have been shown to be important molecules for the fractionation and conversion of LCB into biofuels and high-value-added molecules. However, operational challenges must be overcome before enzyme technology can be the main resource for obtaining second-generation sugars. The use of additives is shown to be a suitable strategy to improve the saccharification process. This review describes the mechanisms, roles, and effects of using additives, such as surfactants, biosurfactants, and non-catalytic proteins, separately and integrated into the enzymatic hydrolysis process of lignocellulosic biomass. In doing so, it provides a technical background in which operational biomass processing hurdles such as solids and enzymatic loadings, pretreatment burdens, and the unproductive adsorption phenomenon can be addressed.
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Ojewumi ME, Emetere ME, Obanla OR, Babatunde DE, Adimekwe EG. Bio-Conversion of Waste Paper Into Fermentable Sugars—A Review. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2022.926400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Pollution generated by solid waste has become a massive source of concern worldwide as the amount of waste being generated has become overwhelming. Waste paper contributes significantly to the overall solid municipal waste being generated daily and with control methods that are equally bad for the environment or just plain ineffective; better, effective, and environmentally friendly control solutions are required. This study reviews the use of various microorganisms as they aid in the control of waste papers in an environmentally conscious way. In addition to being an environmentally friendly solution to the issue of solid waste paper pollution, it is also a prominent source of renewable energy in the conversion of paper into fermentable sugars for the production of bio-ethanol. This review examines the vital revolution in the enzymatic hydrolysis of paper to sugar. Salient challenges that involve bioconversion were highlighted and a few solutions were suggested.
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Lucaroni AC, Dresch AP, Fogolari O, Giehl A, Treichel H, Bender JP, Mibielli GM, Alves SL. Effects of Temperature and pH on Salt-Stressed Yeast Cultures in Non-Detoxified Coconut Hydrolysate. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2021.0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ana C. Lucaroni
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Aline P. Dresch
- Laboratory of Solid Waste, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Odinei Fogolari
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
- Laboratory of Solid Waste, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Anderson Giehl
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | - Helen Treichel
- Laboratory of Microbiology and Bioprocesses, Federal University of Fronteira Sul, Erechim, RS, Brazil
| | - João P. Bender
- Laboratory of Solid Waste, Federal University of Fronteira Sul, Chapecó, SC, Brazil
| | | | - Sérgio L. Alves
- Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Chapecó, SC, Brazil
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Sánchez Muñoz S, Rocha Balbino T, Mier Alba E, Gonçalves Barbosa F, Tonet de Pier F, Lazuroz Moura de Almeida A, Helena Balan Zilla A, Antonio Fernandes Antunes F, Terán Hilares R, Balagurusamy N, César Dos Santos J, Silvério da Silva S. Surfactants in biorefineries: Role, challenges & perspectives. BIORESOURCE TECHNOLOGY 2022; 345:126477. [PMID: 34864172 DOI: 10.1016/j.biortech.2021.126477] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/26/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
The use of lignocellulosic biomass (LCB) as feedstock has received increasing attention as an alternative to fossil-based refineries. Initial steps such as pretreatment and enzymatic hydrolysis are essential to breakdown the complex structure of LCB to make the sugar molecules available to obtain bioproducts by fermentation. However, these steps increase the cost of the bioproduct and often reduces its competitiveness against synthetic products. Currently, the use of surfactants has shown considerable potential to enhance lignocellulosic biomass processing. This review addresses the main mechanisms and role of surfactants as key molecules in various steps of biorefinery processes, viz., increasing the removal of lignin and hemicellulose during the pretreatments, increasing enzymatic stability and enhancing the accessibility of enzymes to the polymeric fractions, and improving the downstream process during fermentation. Further, technical advances, challenges in application of surfactants, and future perspectives to augment the production of several high value-added bioproducts have been discussed.
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Affiliation(s)
- Salvador Sánchez Muñoz
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Thércia Rocha Balbino
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Edith Mier Alba
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Fernanda Gonçalves Barbosa
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Fernando Tonet de Pier
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Alexandra Lazuroz Moura de Almeida
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Ana Helena Balan Zilla
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Felipe Antonio Fernandes Antunes
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Ruly Terán Hilares
- Laboratório de Materiales, Universidad Católica de Santa María - UCSM. Urb. San José, San José s/n, Yanahuara, Arequipa, Perú
| | - Nagamani Balagurusamy
- Bioremediation laboratory. Faculty of Biological Sciences, Autonomous University of Coahuila (UA de C), Torreón Campus, 27000 Coah, México
| | - Júlio César Dos Santos
- Biopolymers, bioreactors, and process simulation laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil
| | - Silvio Silvério da Silva
- Bioprocesses and sustainable products laboratory. Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), 12.602.810. Lorena, SP, Brazil.
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Li M, Jiang B, Wu W, Wu S, Yang Y, Song J, Ahmad M, Jin Y. Current understanding and optimization strategies for efficient lignin-enzyme interaction: A review. Int J Biol Macromol 2022; 195:274-286. [PMID: 34883164 DOI: 10.1016/j.ijbiomac.2021.11.188] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/24/2021] [Accepted: 11/27/2021] [Indexed: 11/29/2022]
Abstract
From energy perspective, with abundant polysaccharides (45-85%), the renewable lignocellulosic is recognized as the 2nd generation feedstock for bioethanol and bio-based products production. Enzymatic hydrolysis is a critical pathway to yield fermentable monosaccharides from pretreated substrates of lignocellulose. Nevertheless, the lignin presence in lignocellulosic substrates leads to the low substrate enzymatic digestibility ascribed to the nonproductive adsorption. It has been reported that the water-soluble lignin (low molecular weight, sulfonated/sulfomethylated and graft polymer) enhance the rate of enzymatic digestibility, however, the catalytic mechanism of lignin-enzyme interaction remains elusive. In this review, optimization strategies for enzymatic hydrolysis based on the lignin structural modification, enzyme engineering, and different additives are critically reviewed. Lignin-enzyme interaction mechanism is also discussed (lignin and various cellulases). In addition, the mathematical models and simulation of lignin, cellulose and enzyme aims for promoting an integrated biomass-conversion process for sustainable production of value-added biofuels.
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Affiliation(s)
- Mohan Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, China
| | - Bo Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, China; Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Wenjuan Wu
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Shufang Wu
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yiqin Yang
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Junlong Song
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, China; Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Mehraj Ahmad
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, China; Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, China; Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China.
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14
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Li M, Yuan Y, Zhu Y, Jiang B, Wu W, Wu S, Jin Y. Comparison of sulfomethylated lignin from poplar and masson pine on cellulase adsorption and the enzymatic hydrolysis of wheat straw. BIORESOURCE TECHNOLOGY 2022; 343:126142. [PMID: 34655779 DOI: 10.1016/j.biortech.2021.126142] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
In this work, effects of sulfomethylated lignins (SLs) prepared from masson pine (SLM) and poplar (SLP) on enzymatic hydrolysis and cellulase-lignin interaction were comparatively investigated. The results showed that both SLM and SLP significantly promoted the substrate enzymatic digestibility. The total sugar yield increased from 38.6% to 74.4% and ∼ 100%, respectively at 10 FPU/g-cellulose of cellulase dosage. The protein content in hydrolysate linearly increased with the addition of SL (0 - 1.6 g/g-substrate lignin), which suggested the competitive adsorption of cellulase may occur to substrate lignin and SLs. Further structural analysis of lignin revealed the high S/(V + H) ratio was directly related to the high enzymatic saccharification efficiency. The strong interaction between SL and cellulase decreased the nonproductive adsorption of cellulase onto substrate lignin and increased the accessibility of cellulase to carbohydrate, which was considered to be the key factor for the improvement of substrate enzymatic digestibility.
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Affiliation(s)
- Mohan Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yufeng Yuan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yangsu Zhu
- Centre Testing International Group Co., Ltd., Suzhou 215134, China
| | - Bo Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Wenjuan Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Shufang Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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15
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Lee S, Akeprathumchai S, Bundidamorn D, Salaipeth L, Poomputsa K, Ratanakhanokchai K, Chang KL, Phitsuwan P. Interplays of enzyme, substrate, and surfactant on hydrolysis of native lignocellulosic biomass. Bioengineered 2021; 12:5110-5124. [PMID: 34369275 PMCID: PMC8806531 DOI: 10.1080/21655979.2021.1961662] [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] [Indexed: 11/17/2022] Open
Abstract
Tracking enzyme, substrate, and surfactant interactions to reach maximum reducing sugar production during enzymatic hydrolysis of plant biomass may provide a better understanding of factors that limit the lignocellulosic material degradation in native rice straw. In this study, enzymes (Cellic Ctec2 cellulase and Cellic Htec2 xylanase) and Triton X-100 (surfactant) were used as biocatalysts for cellulose and xylan degradation and as a lignin blocking agent, respectively. The response surface model (R2 = 0.99 and R2-adj = 0.97) indicated that Cellic Ctec2 cellulase (p < 0.0001) had significant impacts on reducing sugar production, whereas Cellic Htec2 xylanase and Triton X-100 had insignificant impacts on sugar yield. Although FTIR analysis suggested binding of Triton X-100 to lignin surfaces, the morphological observation by SEM revealed similar surface features (i.e., smooth surfaces with some pores) of rice straw irrespective of Triton X-100. The reducing sugar yields from substrate hydrolysis with or without the surfactant were comparable, suggesting similar exposure of polysaccharides accessible to the enzymes. The model analysis and chemical and structural evidence suggest that there would be no positive effects on enzymatic hydrolysis by blocking lignins with Triton X-100 if high lignin coverage exists in the substrate due to the limited availability of hydrolyzable polysaccharides.
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Affiliation(s)
- Sengthong Lee
- Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok Thailand.,LigniTech-Lignin Technology Research Group, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok, Thailand
| | - Saengchai Akeprathumchai
- Division of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok Thailand
| | - Damkerng Bundidamorn
- LigniTech-Lignin Technology Research Group, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok, Thailand
| | - Lakha Salaipeth
- Natural Resource Management Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok, Thailand
| | - Kanokwan Poomputsa
- Division of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok Thailand
| | - Khanok Ratanakhanokchai
- Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok Thailand
| | - Ken-Lin Chang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Paripok Phitsuwan
- Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok Thailand.,LigniTech-Lignin Technology Research Group, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkuntien, Bangkok, Thailand
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16
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Improved high solids loading enzymatic hydrolysis and fermentation of cotton microdust by surfactant addition and optimization of pretreatment. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Yang G, Yang D, Wang X, Cao W. A novel thermostable cellulase-producing Bacillus licheniformis A5 acts synergistically with Bacillus subtilis B2 to improve degradation of Chinese distillers' grains. BIORESOURCE TECHNOLOGY 2021; 325:124729. [PMID: 33493746 DOI: 10.1016/j.biortech.2021.124729] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/08/2021] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
Lack of effective degradation approaches of Chinese distillers' grains (CDGs) produced by Chinese liquor industry results in environmental pollution and economic waste. Cellulase activity was characterized at different temperatures to find thermostable cellulase-producing bacteria, and microbial co-culture method was used to improve the degradation of CDGs. Incubation of endoglucanase produced by Bacillus licheniformis A5 at 80 °C for 120 min showed 82% residual enzyme activity. Notably, enzyme activity increased by 30%-70% after co-culturing Bacillus licheniformis A5 and Bacillus subtilis B2. The two strains increased degradation rate of CDGs by 70% compared with optimized results of Bacillus subtilis B2 culture alone, and increased the reducing sugar content to 16.6 mg/mL. In addition, 2% ethanol increased degradation rate of CDGs by 15% in co-culture. The findings of this study imply that Bacillus licheniformis A5 acts synergistically with Bacillus subtilis B2 to improve degradation of CDGs.
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Affiliation(s)
- Gang Yang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Diqin Yang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Xiaodan Wang
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Wentao Cao
- School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China.
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18
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Pihlajaniemi V, Kallioinen A, Sipponen MH, Nyyssölä A. Modeling and optimization of polyethylene glycol (PEG) addition for cost-efficient enzymatic hydrolysis of lignocellulose. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107894] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Advanced Bioethanol Production: From Novel Raw Materials to Integrated Biorefineries. Processes (Basel) 2021. [DOI: 10.3390/pr9020206] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The production of so-called advanced bioethanol offers several advantages compared to traditional bioethanol production processes in terms of sustainability criteria. This includes, for instance, the use of nonfood crops or residual biomass as raw material and a higher potential for reducing greenhouse gas emissions. The present review focuses on the recent progress related to the production of advanced bioethanol, (i) highlighting current results from using novel biomass sources such as the organic fraction of municipal solid waste and certain industrial residues (e.g., residues from the paper, food, and beverage industries); (ii) describing new developments in pretreatment technologies for the fractionation and conversion of lignocellulosic biomass, such as the bioextrusion process or the use of novel ionic liquids; (iii) listing the use of new enzyme catalysts and microbial strains during saccharification and fermentation processes. Furthermore, the most promising biorefinery approaches that will contribute to the cost-competitiveness of advanced bioethanol production processes are also discussed, focusing on innovative technologies and applications that can contribute to achieve a more sustainable and effective utilization of all biomass fractions. Special attention is given to integrated strategies such as lignocellulose-based biorefineries for the simultaneous production of bioethanol and other high added value bioproducts.
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20
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Castilla-Archilla J, Papirio S, Lens PN. Two step process for volatile fatty acid production from brewery spent grain: Hydrolysis and direct acidogenic fermentation using anaerobic granular sludge. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.10.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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21
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Lignocellulosic Biomass-Based Biorefinery: an Insight into Commercialization and Economic Standout. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s40518-020-00157-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Wang W, Wang C, Zahoor, Chen X, Yu Q, Wang Z, Zhuang X, Yuan Z. Effect of a Nonionic Surfactant on Enzymatic Hydrolysis of Lignocellulose Based on Lignocellulosic Features and Enzyme Adsorption. ACS OMEGA 2020; 5:15812-15820. [PMID: 32656401 PMCID: PMC7345430 DOI: 10.1021/acsomega.0c00526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/15/2020] [Indexed: 02/29/2024]
Abstract
Reduction in the adsorption of cellulase onto lignin has been thought to be the common reason for the improvement of enzymatic hydrolysis of lignocellulose (EHLC) by a nonionic surfactant (NIS). Few research studies have focused on the relationship between lignocellulosic features and NIS for improving EHLC. This study investigated the impact of Tween20 on the enzymatic hydrolysis and enzyme adsorption of acid-treated and alkali-treated sugarcane bagasse (SCB), cypress, and Pterocarpus soyauxii (PS) with and without being ground. After addition of Tween20, the adsorption of cellulase onto unground and ground alkali-treated SCB increased, and the unground acid-treated SCB exhibited little change in adsorption cellulase, while other unground and ground, treated samples showed decreased cellulase adsorption. Tween20 could improve the enzymatic hydrolysis of acid-treated SCB, while it had little influence on the enzymatic hydrolysis of other treated materials. After being ground, both cellulase adsorption and enzymatic hydrolysis of treated lignocelluloses increased, and Tween20 could enhance the enzymatic hydrolysis of acid-treated materials while hardly affected the enzymatic hydrolysis of alkali-treated materials. This indicated that the promotion effect of Tween20 on enzymatic hydrolysis of treated lignocellulose could not be mainly ascribed to the hindrance of Tween20 to cellulase adsorption on lignin but was related to the lignocellulosic features such as hemicellulose removal and surface morphology changes.
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Affiliation(s)
- Wen Wang
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
| | - Chaojun Wang
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
| | - Zahoor
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
| | - Xiaoyan Chen
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
| | - Qiang Yu
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
| | - Zhongming Wang
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
| | - Xinshu Zhuang
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
| | - Zhenhong Yuan
- Guangzhou
Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key
Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
- Collaborative
Innovation Centre of Biomass Energy, Zhengzhou 450002, P. R.
China
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23
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Brondi MG, Elias AM, Furlan FF, Giordano RC, Farinas CS. Performance targets defined by retro-techno-economic analysis for the use of soybean protein as saccharification additive in an integrated biorefinery. Sci Rep 2020; 10:7367. [PMID: 32355315 PMCID: PMC7192929 DOI: 10.1038/s41598-020-64316-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/13/2020] [Indexed: 01/19/2023] Open
Abstract
The use of additives in the enzymatic saccharification of lignocellulosic biomass can have positive effects, decreasing the unproductive adsorption of cellulases on lignin and reducing the loss of enzyme activity. Soybean protein stands out as a potential lignin-blocking additive, but the economic impact of its use has not previously been investigated. Here, a systematic evaluation was performed of the process conditions, together with a techno-economic analysis, for the use of soybean protein in the saccharification of hydrothermally pretreated sugarcane bagasse in the context of an integrated 1G-2G ethanol biorefinery. Statistical experimental design methodology was firstly applied as a tool to select the process variable solids loading at 15% (w/w) and soybean protein concentration at 12% (w/w), followed by determination of enzyme dosage at 10 FPU/g and hydrolysis time of 24 h. The saccharification of sugarcane bagasse under these conditions enabled an increase of 26% in the amount of glucose released, compared to the control without additive. The retro-techno-economic analysis (RTEA) technique showed that to make the biorefinery economically feasible, some performance targets should be reached experimentally such as increasing biomass conversion to ideally 80% and reducing enzyme loading to 5.6 FPU/g in the presence of low-cost soybean protein.
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Affiliation(s)
- Mariana G Brondi
- Embrapa Instrumentation, Rua XV de Novembro 1452, 13560-970, São Carlos, SP, Brazil
- Graduate Program of Chemical Engineering, Federal University of São Carlos, 13565-905, Sao Carlos, SP, Brazil
| | - Andrew M Elias
- Graduate Program of Chemical Engineering, Federal University of São Carlos, 13565-905, Sao Carlos, SP, Brazil
| | - Felipe F Furlan
- Graduate Program of Chemical Engineering, Federal University of São Carlos, 13565-905, Sao Carlos, SP, Brazil
| | - Roberto C Giordano
- Graduate Program of Chemical Engineering, Federal University of São Carlos, 13565-905, Sao Carlos, SP, Brazil
| | - Cristiane S Farinas
- Embrapa Instrumentation, Rua XV de Novembro 1452, 13560-970, São Carlos, SP, Brazil.
- Graduate Program of Chemical Engineering, Federal University of São Carlos, 13565-905, Sao Carlos, SP, Brazil.
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24
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Barbosa FC, Silvello MA, Goldbeck R. Cellulase and oxidative enzymes: new approaches, challenges and perspectives on cellulose degradation for bioethanol production. Biotechnol Lett 2020; 42:875-884. [DOI: 10.1007/s10529-020-02875-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 01/04/2023]
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25
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Pallapolu VR, Shi S, Kang L, Kothari U, Li J. Boost Effect of Water-Soluble Polymers on Enzymatic Hydrolysis of Lignocellulosic Biomass. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b05850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Venkata R. Pallapolu
- Chemical Engineering Department, Auburn University, Auburn, Alabama 36849, United States
| | - Suan Shi
- Department of Biosystems Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Li Kang
- Chemical Engineering Department, Auburn University, Auburn, Alabama 36849, United States
| | - Urvi Kothari
- Chemical Engineering Department, Auburn University, Auburn, Alabama 36849, United States
| | - Jing Li
- Chemical Engineering Department, Auburn University, Auburn, Alabama 36849, United States
- The Alabama Center for Paper and Bioresource Engineering, Auburn University, Auburn, Alabama 36849, United States
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26
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27
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Aoki T, Nakagawa Y, Genjima R, Koumoto K. Structural effect of amine N-oxides on the facilitation of α-glucosidase-catalyzed hydrolysis reactions. Bioprocess Biosyst Eng 2019; 43:541-548. [PMID: 31741084 DOI: 10.1007/s00449-019-02248-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/02/2019] [Indexed: 11/24/2022]
Abstract
Activation and stabilization of enzymes is an important issue in their industrial application. We recently reported that synthetic betaines, derived from cellular metabolites, structure-dependently increased the activity and stability of various enzymes including hydrolases, oxidases, and synthetases simply by mixing them into the reaction buffer. In this report, we focus on amine N-oxides, which are similarly important metabolites in cells with a highly polarized N-oxide bond, and investigate their enzyme stabilization and activation behavior. It was revealed that synthetic amine N-oxides structure-dependently activate α-glucosidase-catalyzed hydrolysis reactions similarly to betaines. The subsequent comparison of the kinetic parameters, the optimal concentration range for activation, and the maximal activity, suggested that amine N-oxides facilitate hydrolysis reactions via the same mechanism as betaines, because no differences were confirmed. However, the enzyme stabilization effect of amine N-oxides was slightly superior to that of betaines and the temporal stability of the enzyme in aqueous solutions was higher in the low amine N-oxide concentration range. The rheological properties, CD spectra, and dynamic fluorescence quenching experiments suggested that the suppression of unfavorable conformational perturbation was related to the difference in the hydration environments provided by the surrounding water molecules. Thus, we clarified that amine N-oxides facilitate enzyme reactions as a result of their similarity to betaines and provide a superior stabilizing effect for enzymes. Amine N-oxides show potential for application in enzyme storage and long-term reactions.
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Affiliation(s)
- Takuma Aoki
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Yuichi Nakagawa
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Ryutaro Genjima
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, Japan
| | - Kazuya Koumoto
- Department of Nanobiochemistry, FIRST (Frontiers of Innovative Research in Science and Technology), Konan University, 7-1-20 Minatojima-minamimachi, Chuo-ku, Kobe, 650-0047, Japan.
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28
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Zhan X, Cai C, Pang Y, Qin F, Lou H, Huang J, Qiu X. Effect of the isoelectric point of pH-responsive lignin-based amphoteric surfactant on the enzymatic hydrolysis of lignocellulose. BIORESOURCE TECHNOLOGY 2019; 283:112-119. [PMID: 30901583 DOI: 10.1016/j.biortech.2019.03.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 05/09/2023]
Abstract
The isoelectric point (pI) of lignin-based surfactant is an important factor in the enhancement on the enzymatic hydrolysis of lignocellulose. In this work, lignin carboxylate (LC) and quaternary ammonium lignin carboxylates (LCQ-x, x%: the mass ratio of quaternizing agent to enzymatic hydrolysis lignin) with different isoelectric points were synthesized. LC or LCQ-x with pI significantly lower or higher than 4.8 reduced the non-productive adsorption of cellulase on lignin, but for the significant inhibitory effect on cellulase activity, their enhancements on the enzymatic hydrolysis of lignocellulose were not remarkable. However, LCQ-x with pI around 4.8 preserved the cellulase activity, and significantly reduced the non-productive adsorption of cellulase, therefore remarkably enhanced the enzymatic hydrolysis. 2 g/L LC, LCQ-40 (pI = 5.0) and LCQ-100 (pI = 9.2) increased the enzymatic digestibility of pretreated eucalyptus from 35.2% to 53.4%, 95.3% and 60.4% respectively. In addition, for the excellent pH-response performance, LCQ could be efficiently recovered after enzymatic saccharification.
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Affiliation(s)
- Xuejuan Zhan
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China
| | - Cheng Cai
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China
| | - Yuxia Pang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China
| | - Feiyang Qin
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China
| | - Hongming Lou
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.
| | - Jinhao Huang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China
| | - Xueqing Qiu
- School of Chemistry and Chemical Engineering, Guangdong Provincial Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
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Abaide ER, Dotto GL, Tres MV, Zabot GL, Mazutti MA. Adsorption of 2-nitrophenol using rice straw and rice husks hydrolyzed by subcritical water. BIORESOURCE TECHNOLOGY 2019; 284:25-35. [PMID: 30925420 DOI: 10.1016/j.biortech.2019.03.110] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
The potential of rice husks and straw as adsorbents after being processed by subcritical water hydrolysis (SWH) was investigated. The influences of temperature (453, 493 and 533 K) and liquid/solid ratio (7.5 and 15 g water/g biomass) on the rice straw and rice husks characteristics and on the adsorption capacity of 2-nitrophenol were evaluated at pH 4 and 7. Adsorption kinetics, equilibrium and thermodynamic parameters were also studied. The adsorption capacity was favored at pH 7. Pseudo-first-order model was suitable to predict the kinetic curves for 2-nitrophenol concentrations of 25, 50, 75 and 100 mg/L and the isotherm data obeyed the Freundlich model. Overall, the thermodynamic results revealed a spontaneous and exothermic process. The maximum adsorption capacity (92.97 ± 1.31 mg/g) was obtained for rice straw that has undergone an SWH at 453 K and 7.5 g water/g straw. The integration of processes to valorize co-products can make the production of cellulosic bioethanol more feasible.
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Affiliation(s)
- Ederson R Abaide
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Guilherme L Dotto
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Marcus V Tres
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil
| | - Giovani L Zabot
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), 1040, Sete de Setembro St., Center DC, Cachoeira do Sul, RS 96508-010, Brazil.
| | - Marcio A Mazutti
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima Avenue, Santa Maria, RS 97105-900, Brazil
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30
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Champreda V, Mhuantong W, Lekakarn H, Bunterngsook B, Kanokratana P, Zhao XQ, Zhang F, Inoue H, Fujii T, Eurwilaichitr L. Designing cellulolytic enzyme systems for biorefinery: From nature to application. J Biosci Bioeng 2019; 128:637-654. [PMID: 31204199 DOI: 10.1016/j.jbiosc.2019.05.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/06/2019] [Accepted: 05/11/2019] [Indexed: 12/14/2022]
Abstract
Cellulolytic enzymes play a key role on conversion of lignocellulosic plant biomass to biofuels and biochemicals in sugar platform biorefineries. In this review, we survey composite carbohydrate-active enzymes (CAZymes) among groups of cellulolytic fungi and bacteria that exist under aerobic and anaerobic conditions. Recent advances in designing effective cellulase mixtures are described, starting from the most complex microbial consortium-based enzyme preparations, to single-origin enzymes derived from intensively studied cellulase producers such as Trichoderma reesei, Talaromyces cellulolyticus, and Penicellium funiculosum, and the simplest minimal enzyme systems comprising selected sets of mono-component enzymes tailor-made for specific lignocellulosic substrates. We provide a comprehensive update on studies in developing high-performance cellulases for biorefineries.
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Affiliation(s)
- Verawat Champreda
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand.
| | - Wuttichai Mhuantong
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Hataikarn Lekakarn
- Department of Biotechnology, Faculty of Science and Technology, Thammasat University, Rangsit Campus, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Benjarat Bunterngsook
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Pattanop Kanokratana
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
| | - Xin-Qing Zhao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fei Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hiroyuki Inoue
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology, 3-11-32 Kagamiyama, Hiroshima 739-0046, Japan
| | - Tatsuya Fujii
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology, 3-11-32 Kagamiyama, Hiroshima 739-0046, Japan
| | - Lily Eurwilaichitr
- National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Phahonyothin Road, Khlong Luang, Pathumthani 12120, Thailand
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31
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Fahmy M, Sohel MI, Vaidya AA, Jack MW, Suckling ID. Does sugar yield drive lignocellulosic sugar cost? Case study for enzymatic hydrolysis of softwood with added polyethylene glycol. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Li H, Wang C, Xiao W, Yang Y, Hu P, Dai Y, Jiang Z. Dissecting the effect of polyethylene glycol on the enzymatic hydrolysis of diverse lignocellulose. Int J Biol Macromol 2019; 131:676-681. [PMID: 30904528 DOI: 10.1016/j.ijbiomac.2019.03.131] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/06/2019] [Accepted: 03/19/2019] [Indexed: 12/20/2022]
Abstract
Natural lignocellulose is used as raw material to produce chemicals through biological transformation. The accessibility of cellulase to substrate was also one of the limiting factors of industrial production. Polyethylene glycol (PEG) can be used as additive in enzymatic hydrolysis of lignocellulose. In this study, enzymatic activity on simultaneous or non-simultaneous addition of PEG 4000 was investigated, and the partly delignified rice straw, the rice straw and filter paper were used as substrates, respectively. Enzyme activity was characterized by reducing sugar concentration in supernatant which was quantified through 3,5-dinitrosalicylic acid (DNS) method. Addition of PEG has been proven to facilitate enzymatic hydrolysis of lignocellulosic materials. Furthermore, PEG had the positive effect on hydrolytic enzyme activity of pure cellulose materials without lignin. Changes in lignocellulose materials have been observed by inverted microscope and Scanning electron microscope (SEM), and no chemical changes were shown by Fourier transform infrared spectroscopy (FTIR). The promotion of PEG on enzymatic hydrolysis of pure cellulose materials may be due to its loose physical structure and similar phenomenon in natural lignin materials. PEG loosens the physical structure of lignocellulose, thus facilitating enzymatic hydrolysis. This may be a new idea to optimize the lignocellulosic enzymatic hydrolysis process.
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Affiliation(s)
- Huanan Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Chaoying Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Wenjing Xiao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Yuxian Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Pan Hu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China
| | - Yujun Dai
- Hubei Province Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hubei Engineering University, Xiaogan 432000, PR China
| | - Zhengbing Jiang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China; Hubei Key Laboratory of Industrial Biotechnology, School of Life Science, Hubei University, Wuhan 430062, PR China.
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Liuzzi F, Mastrolitti S, De Bari I. Hydrolysis of Corn Stover by Talaromyces cellulolyticus Enzymes: Evaluation of the Residual Enzymes Activities Through the Process. Appl Biochem Biotechnol 2019; 188:690-705. [DOI: 10.1007/s12010-018-02946-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/26/2018] [Indexed: 01/03/2023]
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34
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Jain L, Kurmi AK, Agrawal D. Benchmarking hydrolytic potential of cellulase cocktail obtained from mutant strain of Talaromyces verruculosus IIPC 324 with commercial biofuel enzymes. 3 Biotech 2019; 9:23. [PMID: 30622861 DOI: 10.1007/s13205-018-1547-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 12/16/2018] [Indexed: 12/23/2022] Open
Abstract
In the present study, an attempt was made to benchmark the hydrolytic potential of cellulase cocktail obtained from stable mutant UV-8 of Talaromyces verruculosus IIPC 324 (NFCCI 4117) with three commercially available cellulases. With two experimental approaches, acid-pretreated sugarcane bagasse was subjected to hydrolysis for 72 h, where all the enzymes were dosed on the basis of common protein or common cellulase activity /g cellulose content. Concentrated fungal enzyme (CFE) of mutant UV-8 resulted in ~ 59% and 55% saccharification of acid-pretreated sugarcane bagasse after 72 h at 55 °C and pH 4.5 with respect to reducing sugar release, when dosed at 25 mg protein/g and 500 IU CMC'ase/g cellulose, respectively. On the other hand, at similar dosages, the performance of Cellic CTec2 was best resulting in 77% and 66% saccharification, respectively. When enzyme desorption studies were undertaken by carrying out cellulase activities in saccharified broth after 72 h CFE of UV-8 emerged as the best cellulase cocktail. A minimum of 90% endoglucanase and 60% cellobiohydrolase I was successfully desorbed from residual biomass, thereby increasing the probability of enzyme recycle and reuse for next round of hydrolysis.
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Affiliation(s)
- Lavika Jain
- 1Biotechnology Conversion Area, Biofuels Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002 India
| | - Akhilesh Kumar Kurmi
- 1Biotechnology Conversion Area, Biofuels Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005 India
| | - Deepti Agrawal
- 1Biotechnology Conversion Area, Biofuels Division, CSIR-Indian Institute of Petroleum, Mohkampur, Dehradun, 248005 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002 India
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35
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Abaide ER, Ugalde G, Di Luccio M, Moreira RDFPM, Tres MV, Zabot GL, Mazutti MA. Obtaining fermentable sugars and bioproducts from rice husks by subcritical water hydrolysis in a semi-continuous mode. BIORESOURCE TECHNOLOGY 2019; 272:510-520. [PMID: 30391844 DOI: 10.1016/j.biortech.2018.10.075] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/25/2018] [Accepted: 10/26/2018] [Indexed: 06/08/2023]
Abstract
This work aimed at producing fermentable sugars and bioproducts from rice husks by subcritical water hydrolysis at 25 MPa in a semi-continuous mode. The influences of temperature (180 °C; 220 °C; 260 °C) and liquid/solid ratio (7.5 g water/g husks; 15 g water/g husks) on reducing sugar yield (YRS), efficiency (E), kinetic profiles (0-15 min), composition of sugars, inhibitors and organic acids, and physicochemical characteristics of the remaining solid material were evaluated and discussed in the work. The highest YRS (18.0 ± 2.9 g/100 g husks) and E (39.5 ± 1.7 g sugars/100 g carbohydrates) were obtained at 220 °C and 7.5 gwater/g husks. In such condition, the hydrolyzed solutions presented cellobiose (18.0 g/L), xylose 17.7 g/L), arabinose (3.6 g/L), glucose (1.5 g/L), and levulinic acid (0.7 g/L). The fermentable sugars and bioproducts can be applied in several industrial fields, especially for the production of bioethanol and other higher value-added chemical compounds.
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Affiliation(s)
- Ederson R Abaide
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima Avenue, Santa Maria, RS 97105-900, Brazil; Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), 1040, Sete de Setembro St, Center DC, Cachoeira do Sul - RS 96508-010, Brazil
| | - Gustavo Ugalde
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Marco Di Luccio
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC 88040-900, Brazil
| | - Regina de F P M Moreira
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC 88040-900, Brazil
| | - Marcus V Tres
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), 1040, Sete de Setembro St, Center DC, Cachoeira do Sul - RS 96508-010, Brazil
| | - Giovani L Zabot
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria (UFSM), 1040, Sete de Setembro St, Center DC, Cachoeira do Sul - RS 96508-010, Brazil.
| | - Marcio A Mazutti
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima Avenue, Santa Maria, RS 97105-900, Brazil
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36
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Chen YA, Zhou Y, Qin Y, Liu D, Zhao X. Evaluation of the action of Tween 20 non-ionic surfactant during enzymatic hydrolysis of lignocellulose: Pretreatment, hydrolysis conditions and lignin structure. BIORESOURCE TECHNOLOGY 2018; 269:329-338. [PMID: 30195225 DOI: 10.1016/j.biortech.2018.08.119] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 06/08/2023]
Abstract
The aim of this work was to study the effects of pretreatment process, hydrolysis condition and structural features of lignin on the improving action of surfactants (Tween 20) for enzymatic hydrolysis of pretreated wheat straw, and further to interpret the relation of these factors with the non-productive adsorption of cellulases on lignin. Tween 20 seemed to be more greatly improve cellulose conversion under harsher conditions. The surfactant showed more significant improvement for acid-pretreated substrates than oxidative-pretreated substrates. Highly-condensed lignin and phenolic hydroxyl groups showed much stronger adsorption ability to cellulases, while Tween 20 could well block the lignin-cellulase interactions recovering cellulose hydrolyzability. It was proposed that pretreatments altered lignin structures, resulting in the change of surface properties thus further impacting the lignin-cellulase interactions. Addition of Tween 20 could modify lignin surface properties to change its hydrophobicity, hydrogen bonding ability and surface charges, thus reducing the non-productive adsorption of proteins.
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Affiliation(s)
- Yu-An Chen
- Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Institute of Applied Chemistry, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yan Zhou
- Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Institute of Applied Chemistry, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yanlin Qin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Dehua Liu
- Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Institute of Applied Chemistry, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xuebing Zhao
- Key Laboratory for Industrial Biocatalysis, Ministry of Education of China, Institute of Applied Chemistry, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
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37
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Jain L, Kurmi AK, Agrawal D. Feasibility studies with lignin blocking additives in enhancing saccharification and cellulase recovery: Mutant UV-8 of T. verruculosus IIPC 324 a case study. Enzyme Microb Technol 2018; 118:44-49. [DOI: 10.1016/j.enzmictec.2018.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/19/2018] [Accepted: 07/12/2018] [Indexed: 01/13/2023]
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38
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Guo H, Wang XD, Lee DJ. Proteomic researches for lignocellulose-degrading enzymes: A mini-review. BIORESOURCE TECHNOLOGY 2018; 265:532-541. [PMID: 29884341 DOI: 10.1016/j.biortech.2018.05.101] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 05/14/2023]
Abstract
Protective action of lignin/hemicellulose networks and crystalline structures of embedded cellulose render lignocellulose material resistant to external enzymatic attack. To eliminate this bottleneck, research has been conducted in which advanced proteomic techniques are applied to identify effective commercial hydrolytic enzymes. This mini-review summarizes researches on lignocellulose-degrading enzymes, the mechanisms of the responses of various lignocellulose-degrading strains and microbial communities to various carbon sources and various biomass substrates, post-translational modifications of lignocellulose-degrading enzymes, new lignocellulose-degrading strains, new lignocellulose-degrading enzymes and a new method of secretome analysis. The challenges in the practical use of enzymatic hydrolysis process to realize lignocellulose biorefineries are discussed, along with the prospects for the same.
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Affiliation(s)
- Hongliang Guo
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Xiao-Dong Wang
- Research Center of Engineering Thermophysics, North China Electric Power University, Beijing 102206, China; School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
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39
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Zhang H, Lyu G, Zhang A, Li X, Xie J. Effects of ferric chloride pretreatment and surfactants on the sugar production from sugarcane bagasse. BIORESOURCE TECHNOLOGY 2018; 265:93-101. [PMID: 29885498 DOI: 10.1016/j.biortech.2018.05.111] [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: 04/16/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 05/08/2023]
Abstract
An efficient pretreatment with various concentrations of FeCl3 (0.005-0.2 mol/L) was developed to extract hemicellulose in sugarcane bagasse and enhance the enzymatic hydrolysis of cellulose in pretreated solids. It was found that 0.025 mol/L FeCl3 pretreated substrate yielded a high glucose yield of 80.1% during enzymatic hydrolysis. Then the characterization of raw material and pretreated solids was carried out to better understand how hemicellulose removal affected subsequent enzymatic hydrolysis. In addition, Tween 80 and Bovine Serum Albumin (BSA) were added to promote enzymatic hydrolysis of pretreated substrate. Together with that obtained from pretreatment, the highest glucose yield reached 97.7% with addition of Tween 80, meanwhile, a reduction of 50% loading of enzyme yielded the same level of glucose. However, the increased yields with additives decreased gradually as the hydrolysis time was extended. Furthermore, the enhancement mechanisms of Tween 80 and BSA were determined.
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Affiliation(s)
- Hongdan Zhang
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, PR China; Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education of China, Qilu University of Technology, Jinan 250353, PR China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China.
| | - Gaojin Lyu
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education of China, Qilu University of Technology, Jinan 250353, PR China
| | - Aiping Zhang
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, PR China
| | - Xin Li
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, PR China
| | - Jun Xie
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, PR China.
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40
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Expression and characterisation of a thermophilic endo-1,4-β-glucanase from Sulfolobus shibatae of potential industrial application. Mol Biol Rep 2018; 45:2201-2211. [DOI: 10.1007/s11033-018-4381-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 09/12/2018] [Indexed: 12/17/2022]
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41
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Longati AA, Lino ARA, Giordano RC, Furlan FF, Cruz AJG. Defining research & development process targets through retro-techno-economic analysis: The sugarcane biorefinery case. BIORESOURCE TECHNOLOGY 2018; 263:1-9. [PMID: 29723843 DOI: 10.1016/j.biortech.2018.04.102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/24/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
A new approach is reported for techno-economic analysis of lignocellulosic ethanol production. With this methodology, general targets for key process variables can be draw, a valuable feedback for Research & Development teams. An integrated first- and second-generation ethanol from sugarcane biorefinery is presented as a case study for the methodology, with the biomass pretreated by liquid hot water, followed by enzymatic hydrolysis of the cellulose fraction. The hemicellulose fraction may be either fermented or biodigested. The methodology was able to identify the main variables that affect the process global economic performance: enzyme load in the cellulose hydrolysis reactor, cellulose-to-glucose, and xylose-to-ethanol yields. Windows of feasible operation are the graphical output of the methodology, outlining regions to be further explored experimentally. One example of quantitative result is that the maximum feasible enzyme load was 11.3 FPU/gcellulose when xylose is fermented to ethanol and 7.7 FPU/gcellulose when xylose is biodigested.
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Affiliation(s)
- Andreza A Longati
- Chemical Engineering Graduate Program, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil
| | - Anderson R A Lino
- Chemical Engineering Graduate Program, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil
| | - Roberto C Giordano
- Chemical Engineering Graduate Program, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil; Chemical Engineering Department, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil
| | - Felipe F Furlan
- Chemical Engineering Graduate Program, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil; Chemical Engineering Department, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil
| | - Antonio J G Cruz
- Chemical Engineering Graduate Program, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil; Chemical Engineering Department, Federal University of São Carlos, C.P. 676, São Carlos, São Paulo 13565-905, Brazil.
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42
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Characterization of truncated endo-β-1,4-glucanases from a compost metagenomic library and their saccharification potentials. Int J Biol Macromol 2018; 115:554-562. [DOI: 10.1016/j.ijbiomac.2018.04.102] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/18/2018] [Accepted: 04/19/2018] [Indexed: 11/23/2022]
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43
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Brondi MG, Vasconcellos VM, Giordano RC, Farinas CS. Alternative Low-Cost Additives to Improve the Saccharification of Lignocellulosic Biomass. Appl Biochem Biotechnol 2018; 187:461-473. [DOI: 10.1007/s12010-018-2834-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 06/27/2018] [Indexed: 12/12/2022]
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44
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Optimization of Saccharification Conditions of Lignocellulosic Biomass under Alkaline Pre-Treatment and Enzymatic Hydrolysis. ENERGIES 2018. [DOI: 10.3390/en11040886] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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45
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Rocha-Martín J, Martínez-Bernal C, Zamorano LS, Reyes-Sosa FM, Díez García B. Inhibition of enzymatic hydrolysis of pretreated corn stover and sugar cane straw by laccases. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.01.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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46
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Guo H, Chang Y, Lee DJ. Enzymatic saccharification of lignocellulosic biorefinery: Research focuses. BIORESOURCE TECHNOLOGY 2018; 252:198-215. [PMID: 29329774 DOI: 10.1016/j.biortech.2017.12.062] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 06/07/2023]
Abstract
To realize lignocellulosic biorefinery is of global interest, with enzymatic saccharification presenting an essential stage to convert polymeric sugars to mono-sugars for fermentation use. This mini-review summarizes qualitatively the research focuses discussed the review articles presented in the past 22 months and other relevant papers. The research focuses on pretreatment with improved efficiency, enhanced enzyme production with high yields and high extreme tolerance, feasible combined saccharification and fermentation processes, detailed mechanisms corresponding to the enzymatic saccharification in lignocellulosic biorefinery, and the costs are discussed.
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Affiliation(s)
- Hongliang Guo
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Yingju Chang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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Zhang H, Wei W, Zhang J, Huang S, Xie J. Enhancing enzymatic saccharification of sugarcane bagasse by combinatorial pretreatment and Tween 80. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:309. [PMID: 30455738 PMCID: PMC6225707 DOI: 10.1186/s13068-018-1313-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/01/2018] [Indexed: 05/09/2023]
Abstract
BACKGROUND The recalcitrant structure of lignocellulosic biomass made it challenging for their bioconversion into biofuels and biochemicals. Pretreatment was required to deconstruct the intact structure by the removal of hemicellulose/lignin, improving the cellulose accessibility of enzyme. Combinatorial pretreatments with liquid hot water/H2SO4 and ethanol/NaOH of sugarcane bagasse were developed to improve enzymatic hydrolysis under mild conditions. RESULTS After one-step 60% ethanol containing 0.5% NaOH pretreatment with solid to liquid ratio of 1/10, the glucose yield after hydrolysis for 72 h with enzyme dosage of 20 FPU/g substrate was enhanced by 41% and 205% compared to that of NaOH or 60% ethanol pretreated solids, respectively. This improvement was correlated with the removal of hemicellulose and lignin. However, using combinatorial pretreatments with 1% H2SO4 followed by 60% ethanol containing 0.5% NaOH, the highest glucose yield with Tween 80 reached 76%, representing 84.5% of theoretical glucose in pretreated substrate. While retaining similar glucose yield, the addition of Tween 80 capacitated either a reduction of enzyme loading by 50% or shortening hydrolysis time to 24 h. However, the enhancement with the addition of Tween 80 decreased as hydrolysis time was extended. CONCLUSIONS This study demonstrated that a combinatorial pretreatment with 1% H2SO4 followed by 60% ethanol containing 0.5% NaOH had significant effects on improving the enzymatic hydrolysis of sugarcane bagasse. The addition of Tween 80 enabled reducing the enzyme loading or shortening the hydrolysis time. This study provided an economically feasible and mild process for the generation of glucose, which will be subsequently converted to bioethanol and biochemicals.
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Affiliation(s)
- Hongdan Zhang
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640 People’s Republic of China
| | - Weiqi Wei
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China
| | - Jiajie Zhang
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Shihang Huang
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
| | - Jun Xie
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642 People’s Republic of China
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