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Arruda GL, Raymundo MTFR, Cruz-Santos MM, Shibukawa VP, Jofre FM, Prado CA, da Silva SS, Mussatto SI, Santos JC. Lignocellulosic materials valorization in second generation biorefineries: an opportunity to produce fungal biopigments. Crit Rev Biotechnol 2024:1-20. [PMID: 38817002 DOI: 10.1080/07388551.2024.2349581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/13/2024] [Indexed: 06/01/2024]
Abstract
Second generation biorefineries play an important role in the production of renewable energy and fuels, utilizing forest and agro-industrial residues and by-products as raw materials. The integration of novel bioproducts, such as: xylitol, β-carotene, xylooligosaccharides, and biopigments into the biorefinery's portfolio can offer economic benefits in the valorization of lignocellulosic materials, particularly cellulosic and hemicellulosic fractions. Fungal biopigments, known for their additional antioxidant and antimicrobial properties, are appealing to consumers and can have applications in various industrial sectors, including food and pharmaceuticals. The use of lignocellulosic materials as carbon and nutrient sources for the growth medium helps to reduce production costs, increasing the competitiveness of fungal biopigments in the market. In addition, the implementation of biopigment production in biorefineries allows the utilization of underutilized fractions, such as hemicellulose, for value-added bioproducts. This study deals with the potential of fungal biopigments production in second generation biorefineries in order to diversify the produced biomolecules together with energy generation. A comprehensive and critical review of the recent literature on this topic has been conducted, covering the major possible raw materials, general aspects of second generation biorefineries, the fungal biopigments and their potential for incorporation into biorefineries.
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Affiliation(s)
- Gabriel L Arruda
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | | | - Mónica M Cruz-Santos
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Vinícius P Shibukawa
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Fanny M Jofre
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Carina A Prado
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Silvio S da Silva
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
| | - Solange I Mussatto
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Júlio C Santos
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Lorena, Brazil
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2
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Subramaniam S, Karunanandham K, Raja ASM, Shukla SK, Uthandi S. EnZolv delignification of cotton spinning mill waste and optimization of process parameters using response surface methodology (RSM). BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:37. [PMID: 38449061 PMCID: PMC10918963 DOI: 10.1186/s13068-024-02473-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/05/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND EnZolv is a novel enzyme-based, eco-friendly biomass pretreatment process that has shown great potential in the field of textile engineering and biotechnology. It employs laccase from Hexagonia hirta MSF2 and 2% ethanol in the process of delignification. The process is designed to evaluate optimal conditions to remove lignin and other impurities from cotton spinning mill waste (CSMW), without compromising the quality and strength of the fibers. CSMW is a low-cost and readily available source of cellulose, making it an ideal candidate for delignification using EnZolv. By optimizing the pretreatment conditions and harnessing the potential of enzymatic delignification, this research aims to contribute to more sustainable and efficient ways of utilizing lignocellulosic biomass in various industries for the production of biochemical and bioproducts. RESULTS The present study emphasizes the EnZolv pretreatment in the delignification of cotton spinning mill wastes irrespective of the cellulose content. EnZolv process parameters such as, moisture content, enzyme load, incubation time, incubation temperature, and shaking speed were optimized. Under pre-optimized conditions, the percent lignin reduction was 61.34%, 61.64%, 41.85%, 35.34%, and 35.83% in blowroom droppings (BD), flat strips (FS), lickerin fly (LF), microdust (MD) and comber noils (CN), respectively. Using response surface methodology (RSM), the statistically optimized EnZolv pretreatment conditions showed lignin reduction of 59.16%, 62.88%, 48.26%, 34.64%, and 45.99% in BD, FS, LF, MD, and CN, respectively. CONCLUSION Traditional chemical-based pretreatment methods often involve harsh chemicals and high energy consumption, which can have detrimental effects on the environment. In contrast, EnZolv offers a greener approach by utilizing enzymes that are biodegradable and more environmentally friendly. The resulting fibers from EnZolv treatment exhibit improved properties that make them suitable for various applications. Some of the key properties include enhanced cellulose recovery, reduced lignin content, and improved biophysical and structural characteristics. These improvements can contribute to the fiber's performance and processability in different industries and future thrust for the production of cellulose-derived and lignin-derived bioproducts.
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Affiliation(s)
- Santhoshkumar Subramaniam
- Biocatalysts Laboratory, Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU), Coimbatore, Tamil Nadu, 641003, India
- Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai, Tamil Nadu, 625104, India
| | - Kumutha Karunanandham
- Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai, Tamil Nadu, 625104, India
| | - A S M Raja
- ICAR-Central Institute for Research on Cotton Technology, Adenwala Road, Matunga, Mumbai, 400019, India
| | - S K Shukla
- ICAR-Central Institute for Research on Cotton Technology, Adenwala Road, Matunga, Mumbai, 400019, India
| | - Sivakumar Uthandi
- Biocatalysts Laboratory, Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU), Coimbatore, Tamil Nadu, 641003, India.
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Qiu Y, Zhang L, Zhang F, Cheng X, Ji L, Jiang J. Efficient production of xylooligosaccharides from Camellia oleifera shells pretreated by pyruvic acid at lower temperature. Int J Biol Macromol 2024; 259:129262. [PMID: 38199559 DOI: 10.1016/j.ijbiomac.2024.129262] [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: 10/13/2023] [Revised: 12/12/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
XOS production from lignocellulose using organic carboxylic acids and alkyd acids has been widely reported. However, it still faces harsh challenges such as high energy consumption, high cost, and low purity. Pyruvic acid (PYA), a carbonyl acid with carbonyl and carboxyl groups, was used to produce XOS due to its stronger catalytic activity. In this work, XOS was efficiently prepared from COS in an autoclave under the condition of 0.21 M PYA-121 °C-35 min. The total yield of XOS reached 68.72 % without producing any toxic by-products, including furfural (FF) and 5-hydroxymethylfurfural (5-HMF). The yield of xylobiose (X2), xylotriose (X3), xylotetraose (X4), and xylopentaose (X5) were 20.58 %, 12.47 %, 15.74 %, and 10.05 %, respectively. Meanwhile, 89.05 % of lignin was retained in the solid residue, which provides a crucial functional group for synthesizing layered carbon materials (SRG-a). It achieves excellent electromagnetic shielding (EMS) performance through graphitization, reaching -30 dB at a thickness of 2.0 mm. The use of a PYA catalyst in the production of XOS has proven to be an efficient method due to lower temperature, lower acid consumption, and straightforward operation.
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Affiliation(s)
- Yuejie Qiu
- Department of Chemistry and Chemical Engineering, State Key Laboratory of Efficient Production of Forest Resources, National Forest and Grass Administration Woody Spices (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Leping Zhang
- Department of Chemistry and Chemical Engineering, State Key Laboratory of Efficient Production of Forest Resources, National Forest and Grass Administration Woody Spices (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Fenglun Zhang
- Nanjing Institute for the Comprehensive Utilization of Wild Plants, Nanjing 211111, China
| | - Xichuang Cheng
- Department of Chemistry and Chemical Engineering, State Key Laboratory of Efficient Production of Forest Resources, National Forest and Grass Administration Woody Spices (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Li Ji
- Department of Chemistry and Chemical Engineering, State Key Laboratory of Efficient Production of Forest Resources, National Forest and Grass Administration Woody Spices (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Jianxin Jiang
- Department of Chemistry and Chemical Engineering, State Key Laboratory of Efficient Production of Forest Resources, National Forest and Grass Administration Woody Spices (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China.
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Lu W, Cai H, Han X, Yang K, Wang H, Wu X, Liu L. Sustainable Biochar Nanosheets Derived from Sweet Sorghum Residues via Superbase Pretreatment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15942-15949. [PMID: 37914676 DOI: 10.1021/acs.langmuir.3c01790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Two-dimensional (2D) sheet-like biochar as promising alternatives to graphene nanosheets has gained significant attention in materials science while being highly restricted by its complicated synthetic steps. In this study, the dimethyl sulfoxide/potassium hydroxide (DMSO/KOH) superbase system was first used to pretreat sweet sorghum residues (SS) and then carbonized to prepare sheet-like biochar. Ascribing to the strong nucleophilicity of DMSO/KOH, a synergistic effect was achieved by partially removing non-cellulosic components in SS and swelling the amorphous region of cellulose, leaving more layered cellulose behind (∼46.5 wt %), which was favorable for the formation of 2D biochar nanosheets with high graphitization degrees (∼93.1%). This strategy was also suitable for other biomass fibers (e.g., straw, wood powders, and nuclear shells) to obtain sheet-like biochar. The resulting sheet-like biochar could be compounded with cellulose nanofibers to achieve the structural design of composites and solve the molding problem of biochar, which was beneficial for dyeing wastewater treatment. Thus, this work provides insight into a simple strategy for developing 2D ultrathin sheet-like biochar from sustainable biomass wastes.
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Affiliation(s)
- Wenyu Lu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
| | - Hongzhen Cai
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
| | - Xiangsheng Han
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
| | - Keyan Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
| | - Hui Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
| | - Xun Wu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
| | - Li Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
- Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255000, China
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5
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Tang Z, Yang D, Tang W, Ma C, He YC. Combined sulfuric acid and choline chloride/glycerol pretreatment for efficiently enhancing enzymatic saccharification of reed stalk. BIORESOURCE TECHNOLOGY 2023; 387:129554. [PMID: 37499922 DOI: 10.1016/j.biortech.2023.129554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
In this study, an efficient combination of pretreatment solvents involving Choline chloride/Glycerol (ChCl/Gly) and H2SO4 was firstly developed to assess the pretreatment performance and determine optimal pretreatment conditions. The results illustrated that the H2SO4-[ChCl/Gly] combination efficiently removed lignin (52.6%) and xylan (80.5%) from the pretreated reed stalk, and subsequent enzymatic hydrolysis yielded 91.1% of glucose. Furthermore, several characterizations were conducted to examine the structural and morphological changes of the reed stalk, revealing apparently enhanced accessibility (128.4 to 522.6 mg/g), reduced lignin surface area (357.9 to 229.5 m2/g), and substantial changes on biomass surface. Based on the aforementioned study, possible mechanisms for the H2SO4-[ChCl/Gly] pretreatment of reed stalks were proposed. The comprehensive understanding of combined H2SO4-[ChCl/Gly] pretreatment system for enhancing the saccharification of the reed stalk was interpreted in this work. Overall, this novel approach could be efficiently applied to pretreat and saccharify reed stalks, empowering the biomass refining industry.
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Affiliation(s)
- Zhengyu Tang
- School of Pharmacy & School of Biological and Food Engineering, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, PR China
| | - Dong Yang
- School of Pharmacy & School of Biological and Food Engineering, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, PR China
| | - Wei Tang
- School of Pharmacy & School of Biological and Food Engineering, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, PR China
| | - Cuiluan Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Lifes, Hubei University, Wuhan 430062, PR China
| | - Yu-Cai He
- School of Pharmacy & School of Biological and Food Engineering, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, PR China; State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Lifes, Hubei University, Wuhan 430062, PR China.
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Jia Z, Wang S, Yu H, Li W, Ye J, Hu Y, Liu C, Ye Z, Sun Y, Xu X. Novel supramolecular deep eutectic solvent pretreatment for obtaining fluorescent lignin and promoting biomass pyrolytic saccharification. BIORESOURCE TECHNOLOGY 2023; 388:129780. [PMID: 37739185 DOI: 10.1016/j.biortech.2023.129780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023]
Abstract
In this study, β-CD was used as a receptor to prepare three novel SDES, which were used to pretreat corn stalks for obtaining fluorescent lignin and promoting biomass pyrolytic saccharification. It was found that GA-residue had a high cellulose retention ratio (94.63%) and the highest lignin removal ratio (61.78%). Besides, the yield of carbohydrates in bio-oil was increased from 0.63% to 49.37%, and fluorescent lignin was prepared for explosion detection, fluorescent film, and information encryption. It was confirmed that the weak interaction between β-CD and HBDs or dimer was mainly performed by hydrogen bond and van der Waals force. The minimum frontier orbital energy difference ΔEU (0.1976 a.u.) and high binding energy (-5456.71 kJ/mol) between molecules were calculated by DFT. Moreover, the mechanism of biomass pretreatment was explored. The green and efficient SDES developed in this study were of great significance for biomass pretreatment and efficient utilization of components.
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Affiliation(s)
- Zhiwen Jia
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Shiyang Wang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Haipeng Yu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Wanyu Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Jiamin Ye
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Yihao Hu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Cong Liu
- School of Chemistry, South China Normal University, Guangzhou 510006, China
| | - Zijian Ye
- School of Chemistry, South China Normal University, Guangzhou 510006, China
| | - Yan Sun
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China
| | - Xiwei Xu
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China; Lingnan Modern Agricultural Science and Technology Maoming Branch of Guangdong Provincial Laboratory, Maoming 525032, Guangdong, China.
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7
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Subramaniam S, Karunanandham K, Asm R, Uthandi S. Delignification of the cotton stalk and ginning mill waste via EnZolv pretreatment and optimization of process parameters using response surface methodology (RSM). BIORESOURCE TECHNOLOGY 2023; 387:129655. [PMID: 37573984 DOI: 10.1016/j.biortech.2023.129655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
The present study aimed to add value to cotton waste biomass using a more eco-friendly process, EnZolv which delignifies cotton stalk and cotton ginning mill waste. A maximum delignification of 68.68% and 65.51% was obtained using pre-optimized EnZolv parameters in cotton stalk (CS) and ginning mill waste (GMW), respectively. Optimized EnZolv process removed 78.68% of lignin in CS using Response Surface Methodology (RSM) in Box-Behnken design at 0% moisture content, 50 U laccase g-1 of biomass, 5 h incubation time, 50 ⁰C incubation temperature, and 150 rpm shaking speed. Similarly, RSM-based delignification of 70.53% in GMW was achieved under the optimized EnZolv conditions of 98.75 % moisture content, 41.59 U laccase g-1 of biomass, 9.3 h incubation time, 46.15 ⁰C incubation temperature, and 150 rpm shaking speed.
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Affiliation(s)
- Santhoshkumar Subramaniam
- Biocatalysts Laboratory, Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU), Coimbatore 641003, Tamil Nadu, India; Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai 625104, Tamil Nadu, India
| | - Kumutha Karunanandham
- Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai 625104, Tamil Nadu, India
| | - Raja Asm
- ICAR- Central Institute for Research on Cotton Technology, Adenwala Road, Matunga, 400019 Mumbai, India
| | - Sivakumar Uthandi
- Biocatalysts Laboratory, Department of Agricultural Microbiology, Tamil Nadu Agricultural University (TNAU), Coimbatore 641003, Tamil Nadu, India.
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8
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Song G, Madadi M, Sun C, Shao L, Tu M, Abdulkhani A, Zhou Q, Lu X, Hu J, Sun F. Surfactants facilitated glycerol organosolv pretreatment of lignocellulosic biomass by structural modification for co-production of fermentable sugars and highly reactive lignin. BIORESOURCE TECHNOLOGY 2023:129178. [PMID: 37270148 DOI: 10.1016/j.biortech.2023.129178] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/06/2023] [Accepted: 05/13/2023] [Indexed: 06/05/2023]
Abstract
This study reported that surfactants could facilitate the organosolv pretreatment of lignocellulosic biomass (LCB) to produce fermentable sugars and highly active lignin. Under the optimized conditions, the surfactant-assisted glycerol organosolv (saGO) pretreatment achieved 80.7% delignification with a retention of 93.4% cellulose and 83.0% hemicellulose. The saGO pretreated substrate exhibited an excellent enzymatic hydrolyzability, achieving 93% of glucose yield from the enzymatic hydrolysis at 48 h. Structural analysis showed that the saGO lignin contained rich β-O-4 bondings with less repolymerization and lower phenolic hydroxyl groups, thus forming highly reactive lignin fragments. The analysis evidenced that the surfactant graft the lignin by structural modification, which was responsible for the excellent substrate hydrolyzability. The co-production of fermentable sugars and organosolv lignin almost recovered a gross energy (87.2%) from LCB. Overall, the saGO pretreatment holds a lot of promise for launching a novel pathway towards lignocellulosic fractionation and lignin valorization.
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Affiliation(s)
- Guojie Song
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Meysam Madadi
- 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
| | - Lishu Shao
- Ministry of Forestry Bioethanol Research Center, School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Maobing Tu
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221, China
| | - Ali Abdulkhani
- Department of Wood and Paper Sciences and Technology, Faculty of Natural Resources, University of Tehran, Karaj 1417466191, China
| | - Qing Zhou
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xingmei Lu
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Canada
| | - Fubao Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
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Tang ZY, Li L, Tang W, Shen JW, Yang QZ, Ma C, He YC. Significantly enhanced enzymatic hydrolysis of waste rice hull through a novel surfactant-based deep eutectic solvent pretreatment. BIORESOURCE TECHNOLOGY 2023; 381:129106. [PMID: 37127172 DOI: 10.1016/j.biortech.2023.129106] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/03/2023]
Abstract
The potential of green solvents, specifically deep eutectic solvents (DESs), has piqued the interest of researchers in the field of lignocellulose pretreatment. To enhance the enzymatic digestion efficiency of waste rice hull (RCH), an effective pretreatment approach was developed using the DES [AA][CATB], which was made with acetic acid (AA) and cetyltrimethylammonium bromide (CTAB). The results showed that [AA][CATB] improved enzymatic saccharification by 3.7 times compared to raw RCH and efficiently eliminated lignin (38.7%) and removed xylan (42.9%). The improvement in enzymatic hydrolysis efficiency was then interpreted by a series of characterizations that showed a great morphological changed RCH with an obvious accessibility increase and a lignin surface area and hydrophobicity reduction. This work demonstrates that functional, and easily recoverable DESs have potential for improving the efficiency of lignocellulose pretreatment in biorefineries, providing a promising approach for developing green solvents and achieving more sustainable and efficient biorefinery processes.
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Affiliation(s)
- Zheng-Yu Tang
- School of Pharmacy, Changzhou University, Changzhou 213164, P.R. China
| | - Lei Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, P.R. China
| | - Wei Tang
- School of Pharmacy, Changzhou University, Changzhou 213164, P.R. China
| | - Jia-Wei Shen
- School of Pharmacy, Changzhou University, Changzhou 213164, P.R. China
| | - Qi-Zhen Yang
- School of Pharmacy, Changzhou University, Changzhou 213164, P.R. China
| | - Cuiluan Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, P.R. China
| | - Yu-Cai He
- School of Pharmacy, Changzhou University, Changzhou 213164, P.R. China; State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan 430062, P.R. China.
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10
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Di J, Li Q, Ma C, He YC. An efficient and sustainable furfurylamine production from biomass-derived furfural by a robust mutant ω-transaminase biocatalyst. BIORESOURCE TECHNOLOGY 2023; 369:128425. [PMID: 36470494 DOI: 10.1016/j.biortech.2022.128425] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Furfurylamine is a key furan-based compound for manufacturing perfumes, fibers, additives, medicines and agrochemicals. It can be obtained by amination of furfural by ω-transaminase (AtAT) from Aspergillus terreus. In this work, site-directed mutant of amino acid residues [Threonine (T) at AT130 was mutated to Methionine (M) and Glutamic acid (E) at AT133 was mutated to Phenylalanine (F)] was used to change in the flexible region of AtAT. The transamination activity and thermostability were significantly improved. In ChCl:MA (30 wt%), furfural (500 mM) was efficiently transformed into furfurylamine (92% yield) with TMEF after 12 h. 101.3 mM of biomass-derived furfural and 129.7 mM of D-xylose-derived furfural were wholly converted into furfurylamine within 5 h, achieving the productivity of 0.465 g furfurylamine/(g xylan in corncob) and 0.302 g furfurylamine/(g D-xylose). This established chemoenzymatic conversion strategy by bridging chemocatalysis and biocatalysis could be utilized in the valorisation of renewable biomass to valuable furans.
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Affiliation(s)
- Junhua Di
- School of Pharmacy, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province, PR China
| | - Qing Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, Hubei Province, PR China
| | - Cuiluan Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, Hubei Province, PR China
| | - Yu-Cai He
- School of Pharmacy, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou, Jiangsu Province, PR China; State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, Hubei Province, PR China; State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, PR China.
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