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Feng ZT, Xiong JB, Wang GF, Li L, Zhou CF, Zhou CH, Huang HJ. Treatment of swine manure by hydrothermal carbonization: The influential effect and preliminary mechanism of surfactants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174233. [PMID: 38936726 DOI: 10.1016/j.scitotenv.2024.174233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Abstract
Treatment of swine manure by hydrothermal carbonization (HTC) with the aid of different surfactants was first explored in this study. PEG 400 (polyethylene glycol 400) and Tween 80 facilitated the formation of bio-oil. SLS (sodium lignosulfonate) and SDS (sodium dodecyl sulfate) promoted the formation of water-soluble matters/gases. Span 80 enhanced the formation of hydrochar, which resulted in a 50.19 % mass yield, 92.39 % energy yield, and a caloric value of 28.68 MJ/kg. The hydrochar obtained with Span 80 presented a similar combustion performance to raw swine manure and the best pyrolysis performance. The use of Span 80 promoted the transfer of degradation products to hydrochar, especially hydrophobic ester and ketone compounds. Notedly, Span 80 suppressed the synthesis of PAHs during the HTC process, which was reduced to 0.92 mg/kg. Furthermore, the hydrochar produced with Span 80 contained lower contents of heavy metals. On the whole, Span 80 has shown great potential in enhancing the HTC of swine manure. The acting mechanisms of surfactants in the HTC of swine manure included adsorption, dispersion, and electrostatics repulsion.
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Affiliation(s)
- Zhen-Tian Feng
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Jiang-Bo Xiong
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Guo-Feng Wang
- Jiangxi Academy of Ecological and Environmental Sciences, Jiangxi Key Laboratory of Environmental Pollution Control, Nanchang 330006, PR China
| | - Lin Li
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Chun-Fei Zhou
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, PR China; School of Forestry, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Chun-Huo Zhou
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Hua-Jun Huang
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, PR China.
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2
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Song G, Sun C, Madadi M, Dou S, Yan J, Huan H, Aghbashlo M, Tabatabaei M, Sun F, Ashori A. Dual assistance of surfactants in glycerol organosolv pretreatment and enzymatic hydrolysis of lignocellulosic biomass for bioethanol production. BIORESOURCE TECHNOLOGY 2024; 395:130358. [PMID: 38253243 DOI: 10.1016/j.biortech.2024.130358] [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: 10/29/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 01/24/2024]
Abstract
This study investigated an innovative strategy of incorporating surfactants into alkaline-catalyzed glycerol pretreatment and enzymatic hydrolysis to improve lignocellulosic biomass (LCB) conversion efficiency. Results revealed that adding 40 mg/g PEG 4000 to the pretreatment at 195 °C obtained the highest glucose yield (84.6%). This yield was comparable to that achieved without surfactants at a higher temperature (240 °C), indicating a reduction of 18.8% in the required heat input. Subsequently, Triton X-100 addition during enzymatic hydrolysis of PEG 4000-assisted pretreated substrate increased glucose yields to 92.1% at 6 FPU/g enzyme loading. High-solid fed-batch semi-simultaneous saccharification and co-fermentation using this dual surfactant strategy gave 56.4 g/L ethanol and a positive net energy gain of 1.4 MJ/kg. Significantly, dual assistance with surfactants rendered 56.3% enzyme cost savings compared to controls without surfactants. Therefore, the proposed surfactant dual-assisted promising approach opens the gateway to economically viable enzyme-mediated LCB biorefinery.
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Affiliation(s)
- Guojie Song
- 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
| | - Meysam Madadi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
| | - Shaohua Dou
- College of Life and Health, Dalian University, Dalian 116622, China
| | - Junshu Yan
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Hailin Huan
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Mortaza Aghbashlo
- Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Meisam Tabatabaei
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; Department of Biomaterials, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
| | - Fubao Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China.
| | - Alireza Ashori
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology, Tehran, Iran
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3
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Kong X, Gui Q, Liu H, Qian F, Wang P. Efficient Synthesis of Chiral Aryl Alcohol with a Novel Kosakonia radicincitans Isolate in Tween 20/L-carnitine: Lysine-Containing Synergistic Reaction System. Appl Biochem Biotechnol 2024; 196:1509-1526. [PMID: 37428385 DOI: 10.1007/s12010-023-04641-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2023] [Indexed: 07/11/2023]
Abstract
Chiral trifluoromethyl alcohols as vital intermediates are of great interest in fine chemicals and especially in pharmaceutical synthesis. In this work, a novel isolate Kosakonia radicincitans ZJPH202011 was firstly employed as biocatalyst for the synthesis of (R)-1-(4-bromophenyl)-2,2,2-trifluoroethanol ((R)-BPFL) with good enantioselectivity. By optimizing fermentation conditions and bioreduction parameters in aqueous buffer system, the substrate concentration of 1-(4-bromophenyl)-2,2,2-trifluoroethanone (BPFO) was doubled from 10 to 20 mM, and the enantiomeric excess (ee) value for (R)-BPFL increased from 88.8 to 96.4%. To improve biocatalytic efficiency by strengthening the mass-transfer rate, natural deep-eutectic solvents, surfactants and cyclodextrins (CDs) were introduced separately in the reaction system as cosolvent. Among them, L-carnitine: lysine (C: Lys, molar ratio 1:2), Tween 20 and γ-CD manifested higher (R)-BPFL yield compared with other same kind of cosolvents. Furthermore, based on the excellent performance of both Tween 20 and C: Lys (1:2) in enhancing BPFO solubility and ameliorating cell permeability, a Tween 20/C: Lys (1:2)-containing integrated reaction system was then established for efficient bioproduction of (R)-BPFL. After optimizing the critical factors involved in BPFO bioreduction in this synergistic reaction system, BPFO loading increased up to 45 mM and the yield reached 90.0% within 9 h, comparatively only 37.6% yield was acquired in neat aqueous buffer. This is the first report on K. radicincitans cells as new biocatalyst applied in (R)-BPFL preparation, and the developed Tween 20/C: Lys-containing synergistic reaction system has great potential for the synthesis of various chiral alcohols.
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Affiliation(s)
- Xiangxin Kong
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Qian Gui
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Hanyu Liu
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Feng Qian
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Pu Wang
- Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China.
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Zhu Z, Wu S, Qi B, Wang C, Luo J, Wan Y. High-solids enzymatic saccharification of starch-rich raw herbal biomass residues for producing high titers of glucose. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86232-86243. [PMID: 37402046 DOI: 10.1007/s11356-023-28501-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/25/2023] [Indexed: 07/05/2023]
Abstract
The bioresource utilization of herbal biomass residues (HBRs) has been receiving more attention. Herein, three different HBRs from Isatidis Radix (IR) and Sophorae Flavescentis Radix (SFR) and Ginseng Radix (GR) were subjected to batch and fed-batch enzymatic hydrolysis to produce high-concentration glucose. Compositional analysis showed the three HBRs had substantial starch content (26.36-63.29%) and relatively low cellulose contents (7.85-21.02%). Due to their high starch content, the combined action of cellulolytic and amylolytic enzymes resulted in greater release of glucose from the raw HBRs compared to using the individual enzyme alone. Batch enzymatic hydrolysis of 10% (w/v) raw HBRs with low loadings of cellulase (≤ 10 FPU/g substrate) and amylolytic enzymes (≤ 5.0 mg/g substrate) led to a high glucan conversion of ≥ 70%. The addition of PEG 6000 and Tween 20 did not contribute to glucose production. Furthermore, to achieve higher glucose concentrations, fed-batch enzymatic hydrolysis was conducted using a total solid loading of 30% (w/v). After 48-h of hydrolysis, glucose concentrations of 125 g/L and 92 g/L were obtained for IR and SFR residues, respectively. GR residue yielded an 83 g/L glucose concentration after 96 h of digestion. The high glucose concentrations produced from these raw HBRs indicate their potential as ideal substrate for a profitable biorefinery. Notably, the obvious advantage of using these HBRs is the elimination of the pretreatment step, which is typically required for agricultural and woody biomass in similar studies.
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Affiliation(s)
- Zhenzhou Zhu
- Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Sirong Wu
- National R&D Center for Se-Rich Agricultural Products Processing, College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Benkun Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Caixia Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinhua Wan
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341119, China
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Tang W, Huang C, Ling Z, He YC. Enhancing cellulosic digestibility of wheat straw by adding sodium lignosulfonate and sodium hydroxide to hydrothermal pretreatment. BIORESOURCE TECHNOLOGY 2023; 379:129058. [PMID: 37068525 DOI: 10.1016/j.biortech.2023.129058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Surfactant-assisted pretreatment has been widely reported to improve the enzymatic hydrolysis of lignocellulose by promoting removal of xylan and lignin. Hence, this work innovatively proposed the use of sodium lignosulfonate (SL) as an additive of alkaline pretreatment (AP), and evaluated its influence on the cellulosic digestibility of wheat straw (WS). The results displayed that the maximum of 72-h cellulosic digestibility could reach 83.5% as 15 g/L SL was introduced to the AP process (SAP), while the cellulosic digestibility of hydrothermal and alkaline pretreated WS was only 63.6% and 70.2%, respectively. These increments were subsequently attributed to the improvement of 6.5% xylan and 26.8% lignin accelerated by SAP, resulting in positive changes in structural characteristics such as accessibility, specific surface area, and cellulosic crystalline structure. The utilization of lignin-based surfactants in pretreatment has realized the economic feasibility of lignocellulosic biorefining and broadened the application prospect of surfactants.
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Affiliation(s)
- Wei Tang
- School of Pharmacy & School of Biological and Food Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Changzhou University, Changzhou 213164, Jiangsu Province, People's Republic of China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu Province, People's Republic of China
| | - Zhe Ling
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu Province, People's Republic of China
| | - Yu-Cai He
- School of Pharmacy & School of Biological and Food Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, National-Local Joint Engineering Research Center of Biomass Refining and High-Quality Utilization, Changzhou University, Changzhou 213164, Jiangsu Province, People's Republic of 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 430062, Hubei Province, People's Republic of China.
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6
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Awasthi MK, Sar T, Gowd SC, Rajendran K, Kumar V, Sarsaiya S, Li Y, Sindhu R, Binod P, Zhang Z, Pandey A, Taherzadeh MJ. A comprehensive review on thermochemical, and biochemical conversion methods of lignocellulosic biomass into valuable end product. FUEL 2023; 342:127790. [DOI: 10.1016/j.fuel.2023.127790] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
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7
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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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8
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Tang Z, Wu C, Tang W, Ma C, He YC. A novel cetyltrimethylammonium bromide-based deep eutectic solvent pretreatment of rice husk to efficiently enhance its enzymatic hydrolysis. BIORESOURCE TECHNOLOGY 2023; 376:128806. [PMID: 36858123 DOI: 10.1016/j.biortech.2023.128806] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Deep eutectic solvent (DES) has caught widely attention of researchers in biomass pretreatment. As a highly efficient surfactant, cetyltrimethylammonium bromide (CTAB) was expected to be used for synthesizing new DESs with additional functions in pretreatment. In this work, an efficient pretreatment method using a mixture of CTAB and lactic acid (LA) as a novel functional DES was established to improve enzymatic digestion efficiency of rice husk (RH). The results showed that DES CTAB:LA effectively removed lignin (51.5%) and xylan (79.9%) and the enzymatic hydrolysis activity of CTAB:LA-treated RH was 5 times that of RH. Then, a series of characterization demonstrated that a substantial accessibility increased, a hydrophobicity and lignin surface area decreased, and great surface morphology alternation were observed on the treated RH, which explained the increase in enzymatic hydrolysis efficiency. Overall, the discovery of more functional DESs might be motivated and biorefinery pretreatment processes might be greatly promoted.
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Affiliation(s)
- Zhengyu Tang
- 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 213164, Jiangsu Province, PR China
| | - Changqing Wu
- 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, PR China
| | - Wei Tang
- 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 213164, Jiangsu 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, 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 213164, 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, PR China.
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9
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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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Cui T, Tang Y, Zhao M, Hu Y, Jin M, Long X. Preparing Biosurfactant Glucolipids from Crude Sophorolipids via Chemical Modifications and Their Potential Application in the Food Industry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2964-2974. [PMID: 36723399 DOI: 10.1021/acs.jafc.2c06066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
This investigation developed a novel strategy for efficiently preparing glucolipids (GLs) by chemically modifying crude sophorolipids. Running this strategy, crude sophorolipids were effectively transformed into GLs through deglycosylation and de-esterification, with a yield of 54.1%. The acquired GLs were then purified via stepwise extractions, and 66.2% of GLs with 95% purity was recovered. GLs are more hydrophobic and present a stronger surface activity than acidic sophorolipids (ASLs). More importantly, these GLs displayed a superior antimicrobial activity to that of ASLs against the tested Gram-positive food pathogens, with a minimum inhibitory concentration of 32-64 mg/L, except against E. coli . This activity of GLs is pH-dependent and especially more powerful under acidic conditions. The mechanism involved is possibly associated with the more efficient adsorption of GLs, as demonstrated by the hydrophobicity of the cell membrane. These GLs could be used as antimicrobial agents for food preservation and health in the food industry.
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Affiliation(s)
- Tianyou Cui
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Yujing Tang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Mengqian Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Yang Hu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Mingjie Jin
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
| | - Xuwei Long
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing210094, PR China
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11
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Morano C, Dei Cas M, Bergamaschi RF, Palmisano E, Pallavicini M, Bolchi C, Roda G, Casati S. Fractioning and Compared 1H NMR and GC-MS Analyses of Lanolin Acid Components. Molecules 2023; 28:molecules28041635. [PMID: 36838621 PMCID: PMC9964252 DOI: 10.3390/molecules28041635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
The management of food and food-related wastes represents a growing global issue, as they are hard to recycle and dispose of. Foremost, waste can serve as an important source of biomasses. Particularly, fat-enriched biomasses are receiving more and more attention for their role in the manufacturing of biofuels. Nonetheless, many biomasses have been set aside over the years. Wool wax, also known as lanolin, has a huge potential for becoming a source of typical and atypical fatty acids. The main aim of this work was to evaluate and assess a protocol for the fractioning of fatty acids from lanolin, a natural by-product of the shearing of sheep, alongside the design of a new and rapid quantitative GC-MS method for the derivatization of free fatty acids in fat mixtures, using MethElute™. As the acid portion of lanolin is characterized by the presence of both aliphatic and hydroxylated fatty acids, we also evaluated a procedure for the parting of these two species, by using NMR spectroscopy, benefitting of the different solubilities of the components in organic solvents. At last, we evaluated and quantified the fatty acids and the α-hydroxy fatty acids present in each attained portion, employing both analytical and synthetic standards. The performed analyses, both qualitative and quantitative, showed a good performance in the parting of the different acid components, and GC-MS allowed to speculate that the majority of α-hydroxylated fatty acids is formed of linear saturated carbon chains, while the totality of properly said fatty acids has a much more complex profile.
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Affiliation(s)
- Camillo Morano
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Michele Dei Cas
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milan, Italy
| | - Roberta F. Bergamaschi
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Erika Palmisano
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Marco Pallavicini
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Cristiano Bolchi
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Gabriella Roda
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Sara Casati
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy
- Correspondence:
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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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13
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Liu T, Wang P, Tian J, Guo J, Zhu W, Seidi F, Jin Y, Xiao H, Song J. Enzymatic saccharification promotion for bioenergy poplar under green liquor pretreatment by fully sulfonated polystyrene: Effect of molecular weight. BIORESOURCE TECHNOLOGY 2022; 363:127904. [PMID: 36108943 DOI: 10.1016/j.biortech.2022.127904] [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: 08/05/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Water-soluble lignin and lignin derivatives are cited to promote the enzymatic saccharification of lignocellulose. Herein, a series of fully sulfonated polystyrene sulfonates (FSPSSs) with various molecular weights (MW) were synthesized through free radical polymerization (FRP) and atom transfer radical polymerization (ATRP) to serve as lignin analogues to boost the enzymatic saccharification of bioenergy poplar under green liquor pretreatment. The FRP-made polymers with MW 944.5 × 103 to 123.6 × 103 g/mol increased the enzymatic hydrolysis digestibility (SED) by 13 % to 18.8 %. On contrary, the ATRP-made polymers with lower MW (3.8 × 103-12.2 × 103 g/mol) showed a weak effect with<8 % improvement in SED. This can be explained the adsorption capacity and the conformation of cellulase-FSPSS complexes, which respond to the reducing nonproductive adsorption correlated to their MWs, due to the strong dependence of molecular conformation on the chain length of strong polyelectrolytes.
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Affiliation(s)
- Tian Liu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Peipei Wang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Jing Tian
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Jiaqi Guo
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Wenyuan Zhu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Fazard Seidi
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yongcan Jin
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Junlong Song
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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14
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Tong D, Zhan P, Zhang W, Zhou Y, Huang Y, Qing Y, Chen J. Surfactant‐Assisted Dilute Phosphoric Acid Plus Steam Explosion of Poplar for Fermentable Sugar Production. ChemistrySelect 2022. [DOI: 10.1002/slct.202200423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Denghui Tong
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
| | - Peng Zhan
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
| | - Weifeng Zhang
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
| | - Yongcai Zhou
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
| | - Yilei Huang
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
| | - Yan Qing
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
| | - Jienan Chen
- Ministry of Forestry Bioethanol Research Center Central South University of Forestry and Technology Changsha 410004 China
- Hunan Engineering Research Center for Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- Hunan International Joint Laboratory of Woody Biomass Conversion Central South University of Forestry and Technology Changsha 410004 China
- School of Materials Science and Engineering Central South University of Forestry and Technology Changsha 410004, China
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