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Ban Q, Wang J, Guo P, Yue J, Zhang L, Li J. Improved biohydrogen production by co-fermentation of corn straw and excess sludge: Insights into biochemical process, microbial community and metabolic genes. ENVIRONMENTAL RESEARCH 2024:119171. [PMID: 38763281 DOI: 10.1016/j.envres.2024.119171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/15/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
The global climate change mainly caused by fossil fuels combustion promotes that zero-carbon hydrogen production through eco-friendly methods has attracted attention in recent years. This investigation explored the biohydrogen production by co-fermentation of corn straw (CS) and excess sludge (ES), as well as comprehensively analyzed the internal mechanism. The results showed that the optimal ratio of CS to ES was 9:1 (TS) with the biohydrogen yield of 101.8 mL/g VS, which was higher than that from the mono-fermentation of CS by 1.0-fold. The pattern of volatile fatty acids (VFAs) indicated that the acetate was the most preponderant by-product in all fermentation systems during the biohydrogen production process, and its yield was improved by adding appropriate dosage of ES. In addition, the content of soluble COD (SCOD) was reduced as increasing ES, while concentration of NH4+-N showed an opposite tendency. Microbial community analysis revealed that the microbial composition in different samples showed a significant divergence. Trichococcus was the most dominant bacterial genus in the optimal ratio of 9:1 (CS/ES) fermentation system and its abundance was as high as 41.8%. The functional genes prediction found that the dominant metabolic genes and hydrogen-producing related genes had not been significantly increased in co-fermentation system (CS/ES=9:1) compared to that in the mono-fermentation of CS, implying that enhancement of biohydrogen production by adding ES mainly relied on balancing nutrients and adjusting microbial community in this study. Further redundancy analysis (RDA) confirmed that biohydrogen yield was closely correlated with the enrichment of Trichococcus.
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Affiliation(s)
- Qiaoying Ban
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; College of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, China.
| | - Jiangwei Wang
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, China
| | - Panpan Guo
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, China
| | - Jiaxin Yue
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, China
| | - Liguo Zhang
- College of Environmental and Resource Sciences, Shanxi University, Taiyuan 030006, China
| | - Jianzheng Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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2
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Tian Y, Yang X, Chen N, Li C, Yang W. Data-driven interpretable analysis for polysaccharide yield prediction. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2024; 19:100321. [PMID: 38021368 PMCID: PMC10661693 DOI: 10.1016/j.ese.2023.100321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 09/17/2023] [Accepted: 09/17/2023] [Indexed: 12/01/2023]
Abstract
Cornstalks show promise as a raw material for polysaccharide production through xylanase. Rapid and accurate prediction of polysaccharide yield can facilitate process optimization, eliminating the need for extensive experimentation in actual production to refine reaction conditions, thereby saving time and costs. However, the intricate interplay of enzymatic factors poses challenges in predicting and optimizing polysaccharide yield accurately. Here, we introduce an innovative data-driven approach leveraging multiple artificial intelligence techniques to enhance polysaccharide production. We propose a machine learning framework to identify highly accurate polysaccharide yield prediction modeling methods and uncover optimal enzymatic parameter combinations. Notably, Random Forest (RF) and eXtreme Gradient Boost (XGB) demonstrate robust performance, achieving prediction accuracies of 93.0% and 95.6%, respectively, while an independently developed deep neural network (DNN) model achieves 91.1% accuracy. A feature importance analysis of XGB reveals the enzyme solution volume's dominant role (43.7%), followed by time (20.7%), substrate concentration (15%), temperature (15%), and pH (5.6%). Further interpretability analysis unveils complex parameter interactions and potential optimization strategies. This data-driven approach, incorporating machine learning, deep learning, and interpretable analysis, offers a viable pathway for polysaccharide yield prediction and the potential recovery of various agricultural residues.
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Affiliation(s)
- Yushi Tian
- School of Resource and Environment, Northeast Agriculture University, Harbin, 150030, PR China
| | - Xu Yang
- School of Resource and Environment, Northeast Agriculture University, Harbin, 150030, PR China
| | - Nianhua Chen
- School of Resource and Environment, Northeast Agriculture University, Harbin, 150030, PR China
| | - Chunyan Li
- School of Resource and Environment, Northeast Agriculture University, Harbin, 150030, PR China
| | - Wulin Yang
- College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, PR China
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3
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Ma J, Ma NL, Fei S, Liu G, Wang Y, Su Y, Wang X, Wang J, Xie Z, Chen G, Sun Y, Sun C. Enhanced humification via lignocellulosic pretreatment in remediation of agricultural solid waste. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123646. [PMID: 38402938 DOI: 10.1016/j.envpol.2024.123646] [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: 10/21/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
Stover and manure are the main solid waste in agricultural industry. The generation of stover and manure could lead to serious environmental pollution if not handled properly. Composting is the potential greener solution to remediate and reduce agricultural solid waste, through which stover and manure could be remediated and converted into organic fertilizer, but the long composting period and low efficiency of humic substance production are the key constraints in such remediation approach. In this study, we explore the effect of lignocellulose selective removal on composting by performing chemical pretreatment on agricultural waste followed by utilization of biochar to assist in the remediation by co-composting treatment and reveal the impacts of different lignocellulose component on organic fertilizer production. Aiming to discover the key factors that influence humification during composting process and improve the composting quality as well as comprehensive utilization of agricultural solid waste. The results demonstrated that the removal of selective lignin or hemicellulose led to the shift of abundances lignocellulose-degrading bacteria, which in turn accelerated the degradation of lignocellulose by almost 51.2%. The process also facilitated the remediation of organic waste via humification and increased the humic acid level and HA/FA ratio in just 22 days. The richness of media relies on their lignocellulose content, which is negatively correlated with total nitrogen content, humic acid (HA) content, germination index (GI), and pH, but positively correlated with fulvic acid (FA) and total organic carbon (TOC). The work provides a potential cost effective and efficient framework for agricultural solid waste remediation and reduction.
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Affiliation(s)
- Jianxun Ma
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Nyuk Ling Ma
- BIOSES Research Interest Group, Faculty of Science & Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Center for Global Health Research (CGHR), Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Shuang Fei
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Guoqing Liu
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Yufan Wang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Yuchun Su
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Xuefeng Wang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Jihong Wang
- College of resources and environment, Jilin Agricultural University, Changchun, 130118, China
| | - Zhiming Xie
- College of Life Sciences, Baicheng Normal University, Baicheng, 137000, China
| | - Guang Chen
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Yang Sun
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China
| | - Chunyu Sun
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, China; Innovation platform of straw comprehensive utilization technology in Jilin Province, Changchun, 130118, China.
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Jin M, Wei X, Mu X, Ren W, Zhang S, Tang C, Cao W. Life-cycle analysis of biohydrogen production via dark-photo fermentation from wheat straw. BIORESOURCE TECHNOLOGY 2024; 396:130429. [PMID: 38336214 DOI: 10.1016/j.biortech.2024.130429] [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: 12/18/2023] [Revised: 02/04/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
This study presents a life-cycle analysis using energy conversion characteristics as an evaluation index to assess the feasibility of this production method. The results indicate that for a system processing 1000 kg/h of wheat straw, the addition of 12000 kg/h of 2 wt% H2SO4 and 120 kg/h of CH3COONa yields 340,000 L/h of H2 and 348.6 kW of electricity. The energy conversion efficiency from the feedstock to the product is 21.4 %, while the efficiency from the hydrolysate to the product is 62.2 %. The total CO2 emission is 27.1 kg/h. Variations in the hydrolysate have the most significant impact on energy conversion efficiency. This study explores the feasibility of industrial-scale biohydrogen production via dark-photo fermentation from wheat straw and analyzes the energy characteristic indices and the sensitivity of these indices to key parameters.
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Affiliation(s)
- Mingjie Jin
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Xuan Wei
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Xuefang Mu
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Weixi Ren
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Sihu Zhang
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Canfang Tang
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Wen Cao
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
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5
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Zhou X, Li F, Li C, Li Y, Jiang D, Zhang T, Lu C, Zhang Q, Jing Y. Effect of deep eutectic solvent pretreatment on biohydrogen production from corncob: pretreatment temperature and duration. Bioengineered 2023; 14:2252218. [PMID: 37647338 PMCID: PMC10469458 DOI: 10.1080/21655979.2023.2252218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 09/01/2023] Open
Abstract
Deep eutectic solvent pretreatment with different temperatures and durations was applied to corncob to increase hydrogen yield via photo-fermentation. The correlation of composition, enzymatic hydrolysis, and hydrogen production in pretreated corncobs, as well as energy conversion was evaluated. Deep eutectic solvent pretreatment effectively dissolved lignin, retained cellulose, and enhanced both enzymatic hydrolysis and hydrogen production. The maximum cumulative hydrogen yield obtained under a pretreatment condition of 50°C and 12 h was 677.45 mL; this was 2.72 times higher than that of untreated corncob, and the corresponding lignin removal and enzymatic reduction of sugar concentration were 79.15% and 49.83 g/L, respectively; the highest energy conversion efficiency was 12.08%. The hydrogen production delay period was shortened, and the maximum shortening time was 18.9 h. Moreover, the cellulose content in pretreated corncob was positively correlated with both reducing sugar concentration and hydrogen yield and had the strongest influence on hydrogen production.
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Affiliation(s)
- Xiaokai Zhou
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Fang Li
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Cunjie Li
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yameng Li
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Danping Jiang
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Tian Zhang
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Chaoyang Lu
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Quanguo Zhang
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yanyan Jing
- College of mechanical and electrical engineering, Henan Agricultural University, Zhengzhou, Henan, China
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Yang X, Li Y, Zhang N, Zhang H, Liu H, Xiang G, Zhang Q. Influence of titanate photocatalyst in biohydrogen yield via photo fermentation from corn stover. BIORESOURCE TECHNOLOGY 2023; 386:129544. [PMID: 37506929 DOI: 10.1016/j.biortech.2023.129544] [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: 07/11/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
The effects of three common titanate photocatalysts (TPC) on the photo fermentation biohydrogen production (PFHP) from corn stover were studied in this paper. Compared with CaTiO3 and BaTiO3, the experimental group with the addition of MgTiO3 showed stronger potential for PFHP, the maximum hydrogen yield of 344 mL (68.8 mL/g TS) was obtained at 3 g/L MgTiO3, increased by 48.3%. For CaTiO3, BaTiO3, the optimal amount of addition was 8 and 7 g/L, respectively, in which, the hydrogen yield was 308 and 288 mL (61.6 and 57.6 mL/g TS). TPC addition could shorten the delay period of hydrogen production lower the Oxidation-Reduction Potential (ORP) of fermentation broth, especially MgTiO3 addition, the delayed hydrogen production could be shortened by 33.2% compared with control group, and the ORP could reach the lowest value of -371 mV.
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Affiliation(s)
- Xudong Yang
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S &T University, Zhengzhou 450006, China
| | - Yameng Li
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S &T University, Zhengzhou 450006, China
| | - Ningyuan Zhang
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Hong Liu
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Guanning Xiang
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Equipment for Renewable Energy (Ministry of Agriculture and Rural Affairs of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S &T University, Zhengzhou 450006, China.
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7
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Xiang G, Zhang Q, Li Y, Zhang X, Liu H, Lu C, Zhang H. Enhancement on photobiological hydrogen production from corn stalk via reducing hydrogen pressure in bioreactors by way of phased decompression schemes. BIORESOURCE TECHNOLOGY 2023; 385:129377. [PMID: 37385557 DOI: 10.1016/j.biortech.2023.129377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 07/01/2023]
Abstract
In this project, it was verified that properly reducing the bioreactor hydrogen partial pressure (HPP) could significantly enhance the photo-fermentative hydrogen production (PFHP) by corn stalk. The maximal cumulative hydrogen yield (CHY) of 82.37 mL/g was obtained under full decompression to 0.4 bar, which was 35% higher than that without decompression. To increase CHY and save the pressure control cost, 12-hour, 24-hour and 36-hour decompression schemes were provided, and the optimal decompression phase in fermentation under each scheme was investigated. The 12-hour decompression scheme was suitable for 24-36 h of fermentation; the 24-hour decompression scheme implemented within 12-36 h of fermentation had a more desirable CHY; when adopting the 36-hour decompression scheme, operation during 12-48 h yielded a CHY of 81.70 mL/g that approximated whole process decompression. The strategies of decompression at the appropriate phase of fermentation were innovative, which offered a new option for optimizing PFHP economically.
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Affiliation(s)
- Guanning Xiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Ministry of Agriculture and Rural Affaires of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Ministry of Agriculture and Rural Affaires of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Ministry of Agriculture and Rural Affaires of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Xueting Zhang
- Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Hong Liu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Ministry of Agriculture and Rural Affaires of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Ministry of Agriculture and Rural Affaires of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Ministry of Agriculture and Rural Affaires of China), Henan Agricultural University, Zhengzhou 450002, China.
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Zhang Q, Yang J, Zhang T, Shui X, Zhang H, Chen Z, He X, Lei T, Jiang D, Elgorban AM, Syed A, Kumar Solanki M. Pretreatment of Arundo donax L. for photo-fermentative biohydrogen production by ultrasonication and ionic liquid. BIORESOURCE TECHNOLOGY 2023; 377:128904. [PMID: 36933572 DOI: 10.1016/j.biortech.2023.128904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/08/2023] [Accepted: 03/12/2023] [Indexed: 06/18/2023]
Abstract
Combined pretreatment methods were assumed to further enhance photo-fermentative biohydrogen production (PFHP) from lignocellulosic biomass. For this purpose, an ultrasonication assisted ionic liquid pretreatment was applied to Arundo donax L. biomass for PFHP. The optimal condition for the combined pretreatment was 16 g/L of 1-Butyl-3-methylimidazolium Hydrogen Sulfate ([Bmim]HSO4) combined with ultrasonication at a solid to liquid ratio (SLR) of 1:10 for 1.5 h under 60 °C. Under this condition, the maximum delignification of 22.9 % was obtained, in addition, the hydrogen yield (HY) and energy conversion efficiency (ECE) were enhanced by 1.5-fold and 46.4 % (p < 0.05) compared to untreated biomass, respectively. Moreover, heat map analysis was performed to evaluate the correlation between pretreatment conditions and corresponding results, suggesting pretreatment temperature had the strongest (absolute value of Pearson's r was 0.97) linear correlation with HY. Combined multiple energy production approaches might be useful for further improved ECE.
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Affiliation(s)
- Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Jiabin Yang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tian Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Xuenan Shui
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Zhou Chen
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Xun He
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tingzhou Lei
- Changzhou University, Changzhou 213164, PR China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China.
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Manoj Kumar Solanki
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, 40-032 Katowice, Poland
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Zhou S, Zhang M, Zhu L, Zhao X, Chen J, Chen W, Chang C. Hydrolysis of lignocellulose to succinic acid: a review of treatment methods and succinic acid applications. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:1. [PMID: 36593503 PMCID: PMC9806916 DOI: 10.1186/s13068-022-02244-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 12/08/2022] [Indexed: 01/03/2023]
Abstract
Succinic acid (SA) is an intermediate product of the tricarboxylic acid cycle (TCA) and is one of the most significant platform chemicals for the production of various derivatives with high added value. Due to the depletion of fossil raw materials and the demand for eco-friendly energy sources, SA biosynthesis from renewable energy sources is gaining attention for its environmental friendliness. This review comprehensively analyzes strategies for the bioconversion of lignocellulose to SA based on the lignocellulose pretreatment processes and cellulose hydrolysis and fermentation principles and highlights the research progress on acid production and SA utilization under different microbial culture conditions. In addition, the fermentation efficiency of different microbial strains for the production of SA and the main challenges were analyzed. The future application directions of SA derivatives were pointed out. It is expected that this research will provide a reference for the optimization of SA production from lignocellulose.
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Affiliation(s)
- Shuzhen Zhou
- grid.207374.50000 0001 2189 3846College of Chemical Engineering, Zhengzhou University, Zhengzhou, China
| | - Miaomiao Zhang
- grid.207374.50000 0001 2189 3846College of Chemical Engineering, Zhengzhou University, Zhengzhou, China
| | - Linying Zhu
- grid.207374.50000 0001 2189 3846College of Management Engineering, Zhengzhou University, Zhengzhou, China
| | - Xiaoling Zhao
- grid.207374.50000 0001 2189 3846College of Chemical Engineering, Zhengzhou University, Zhengzhou, China ,grid.454889.cState Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang, China ,Henan Center for Outstanding Overseas Scientists, Zhengzhou, China
| | - Junying Chen
- grid.207374.50000 0001 2189 3846College of Chemical Engineering, Zhengzhou University, Zhengzhou, China ,grid.454889.cState Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang, China ,Henan Center for Outstanding Overseas Scientists, Zhengzhou, China
| | - Wei Chen
- Henan Key Laboratory of Green Manufacturing of Biobased Chemicals, Puyang, China
| | - Chun Chang
- grid.207374.50000 0001 2189 3846College of Chemical Engineering, Zhengzhou University, Zhengzhou, China ,grid.454889.cState Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang, China ,Henan Center for Outstanding Overseas Scientists, Zhengzhou, China
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10
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Luo L, Yan B, Xu S, Zhou J, Liang J, Zhao J, Tyagi RD, Wong JWC. Regulation of acidogenic fermentation through exogenous additives for promoting carbon conversion of food waste in two-phase anaerobic system. BIORESOURCE TECHNOLOGY 2023; 368:128368. [PMID: 36423758 DOI: 10.1016/j.biortech.2022.128368] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
In this study, exogenous Megasphaera elsdenii inoculum and acetate supplementation were introduced at the acidogenic phase to regulate the acidogenic fermentation pathway and assess their effects on food waste (FW) carbon conversion in two-phase anaerobic digestion (AD) system. These two additives significantly accelerated organic removal efficiency and subsequently increased FW hydrolysis and acidogenesis by 16% and 35%, respectively. As expected, two exogenous additives promoted butyrate fermentation during FW acidogenesis. With regard to the role of exogenous additives, both hydrogen and butyrate yields increased by over 60%. This desired increment resulted in a 25% increase in methane production. The overall carbon conversion from FW in the integrated two-phase AD system was enhanced by biochemical additives, which was 1.3-fold higher than that in control without any additives. Collectively, findings demonstrate the feasibility of regulating acidogenic fermentation via exogenous biochemical additives and its benefits on FW carbon conversion during AD process.
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Affiliation(s)
- Liwen Luo
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China
| | - Binghua Yan
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China; College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Suyun Xu
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China; School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Jun Zhou
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China; Faculty of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jialin Liang
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China
| | - Jun Zhao
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China
| | - R D Tyagi
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China; School of Technology, Huzhou University, Huzhou 313000, China
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China; School of Technology, Huzhou University, Huzhou 313000, China.
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11
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Zhang Q, Shui X, Awasthi MK, Zhang T, Yang J, Zhang H, Chen Z, Zou C, Jiang D. 1-Butyl-3-methylimidazolium acetate pretreatment of giant reed triggering yield improvement of biohydrogen production via photo-fermentation. BIORESOURCE TECHNOLOGY 2022; 364:128068. [PMID: 36202280 DOI: 10.1016/j.biortech.2022.128068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Ionic liquids (ILs) have been considered as promising alternatives to traditional reagent for lignocellulosic biomass pretreatment because of their tunable physicochemical and "green" properties. In the study, the influence of 1-Butyl-3-methylimidazolium acetate ([Bmim]acetate) pretreatment of giant reed on H2 yield improvement via photo-fermentation (PF) was evaluated. Under the optimal pretreatment conditions (6 g/L [Bmim]acetate at 70 °C for 4 h), the delignification of giant reed was up to 26.7 %. In addition, the sugar yield (9.5 g/L) and hydrogen yield (72.3 mL/g TS) from giant reed were enhanced by 1.7-fold and 61.7 % over those of untreated giant reed, respectively. Moreover, ternary analysis showed that retention time had the strongest effect on delignification, sugar yield and hydrogen yield of giant reed compared to pretreatment temperature and [Bmim]acetate loading. These experimental results indicated that [Bmim]acetate pretreatment of giant reed is an effective approach to enhance the hydrogen yield via PF.
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Affiliation(s)
- Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Xuenan Shui
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Tian Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Jiabin Yang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Zhou Chen
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Caihong Zou
- College of Mechanical and Electrical Engineering of Henan Agricultural University, Zhengzhou 450002, PR China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China.
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12
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Eraky M, Elsayed M, Qyyum MA, Ai P, Tawfik A. A new cutting-edge review on the bioremediation of anaerobic digestate for environmental applications and cleaner bioenergy. ENVIRONMENTAL RESEARCH 2022; 213:113708. [PMID: 35724728 DOI: 10.1016/j.envres.2022.113708] [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: 04/02/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
Circular agriculture and economy systems have recently emerged around the world. It is a long-term environmental strategy that promotes economic growth and food security while reducing negative environmental consequences. Anaerobic digestion (AD) process has a high contribution and effective biodegradation route for bio-wastes valorization and reducing greenhouse gases (GHGs) emissions. However, the remaining massive digestate by-product contains non-fermented organic fractions, macro and/or micro-nutrients, heavy metals, and metalloids. Direct application of digestate in agriculture negatively affected the properties of the soil due to the high load of nutrients as well as the residuals of GHGs are emitted to the environment. Recycling and valorizing of anaerobic digestate is the main challenge for the sustainable biogas industry and nutrients recovery. To date, there is no global standard process for the safe digestate handling. This review described the biochemical composition and separation processes of anaerobic digestate. Further, advanced physical, chemical, and biological remediation's of the diverse digestate are comprehensively discussed. Moreover, recycling technologies such as phyco-remediation, bio-floc, and entomoremediation were reviewed as promising solutions to enhance energy and nutrient recovery, making the AD technology more sustainable with additional profits. Finally, this review gives an in-depth discussion of current biorefinery technologies, key roles of process parameters, and identifies challenges of nutrient recovery from digestate and prospects for future studies at large scale.
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Affiliation(s)
- Mohamed Eraky
- College of Engineering, Huazhong Agricultural University, 430070, Wuhan, China
| | - Mahdy Elsayed
- Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, 12613, Giza, Egypt
| | - Muhammad Abdul Qyyum
- Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman.
| | - Ping Ai
- College of Engineering, Huazhong Agricultural University, 430070, Wuhan, China.
| | - Ahmed Tawfik
- National Research Centre, Water Pollution Research Department, P.O. Box 12622, Giza, Egypt.
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13
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Sun J, Deng Y, Li S, Xu W, Liu G. Enhanced efficiency of enzymatic hydrolysis of wheat straw via freeze-thaw pretreatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:56696-56704. [PMID: 35338462 DOI: 10.1007/s11356-022-18893-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
This research investigated enhancing the efficiency of enzymatic hydrolysis of wheat straw via freeze-thaw pretreatment and assessed the physicochemical structural changes after this pretreatment. The enzymatic hydrolysis efficiency of cellulose and hemicellulose was enhanced, and hemicellulose was more susceptible to pretreatment. The highest enzymatic hydrolysis efficiency of cellulose and hemicellulose was 57.06 and 70.66%, respectively, at - 80 ℃ for 24 h and - 10 ℃ for 24 h, respectively, which were 2.23 and 3.13-fold higher than the control levels, respectively. Scanning electron microscopy images indicated that transverse cracks appeared before longitudinal cracks with stronger pretreatment conditions, and holes were found in every sample after this pretreatment. Fourier transform infrared spectroscopy and X-ray diffraction analysis indicated that freeze-thaw pretreatment affected both the crystalline and amorphous regions and disrupted the hydrogen bonds within them. This study provides a physical pretreatment method to improve the efficiency of enzymatic hydrolysis of wheat straw.
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Affiliation(s)
- Jianhong Sun
- Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China.
- Key Laboratory of Resource Recycling Technology and Model, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China.
| | - Yuanfang Deng
- Jiangsu Key Laboratory for Biomass-Based Energy and Enzyme Technology, Huaiyin Normal University, Huai'an, 223300, China
| | - Shaohua Li
- Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China
- Key Laboratory of Resource Recycling Technology and Model, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China
| | - Wenyong Xu
- Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China
- Key Laboratory of Resource Recycling Technology and Model, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China
| | - Guoquan Liu
- Rural Energy and Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China
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14
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Zhang J, Zhang W, Cai Z, Zhang J, Guan D, Ji D, Gao W. Effect of Ammonia Fiber Expansion Combined with NaOH Pretreatment on the Resource Efficiency of Herbaceous and Woody Lignocellulosic Biomass. ACS OMEGA 2022; 7:18761-18769. [PMID: 35694490 PMCID: PMC9178718 DOI: 10.1021/acsomega.2c01302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/06/2022] [Indexed: 06/10/2023]
Abstract
The most essential issue facing the world today is the provision of energy and sustainable consumption of natural resources. Pretreatment is an essential step to produce biofuels from lignocellulosic biomass. In this study, ammonia fiber explosion (AFEX) combined with NaOH (A-NaOH) pretreatment effects on the characteristics of Pennisetum sinese (herbaceous), oak (hardwood), and camphor wood (softwood) were assessed using enzymatic efficiency analysis, thereby identifying the composition properties of subsequent bio-H2 production. The results show that the lignin removal (84.2%, 59.7%, and 36.7%, respectively) at 5%A-NaOH conditions and enzymatic efficiency (36.2%, 9.7%, and 6.5%, respectively) of Pennisetum sinese (P. sinese), oak, and camphor wood were significantly increased under 4% A-NaOH conditions. Further A-NaOH pretreatment significantly promoted dark fermentation bio-H2 production (152.3, 99.1, and 76.9 mL/g TS, respectively) and volatile acid production (4660.2, 3720.2, and 3496.2 mg/L, respectively) of P. sinese, oak, and camphor wood. These findings show that A-NaOH pretreatment is an effective means of utilization of lignocellulose resources.
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Affiliation(s)
- Jingjing Zhang
- College
of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong, P. R. China 250353
| | - Weihua Zhang
- Institute
of Vegetables and Flowers, Shandong Academy
of Agricultural Sciences, Jinan, Shandong, P.
R. China 250100
- Shandong
Green Fertilizer Technology Innovation Center, Linyi, Shandong, P. R. China 276700
| | - Ziyuan Cai
- College
of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong, P. R. China 250353
| | - Jilin Zhang
- College
of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong, P. R. China 250353
| | - Dan Guan
- China
Biotech Fermentation Industry Association, Beijing, P. R. China, 100833
| | - Dandan Ji
- College
of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan, Shandong, P. R. China 250353
- Shandong
Green Fertilizer Technology Innovation Center, Linyi, Shandong, P. R. China 276700
| | - Wensheng Gao
- Shandong
Agricultural Technology Extension Center, Jinan, Shandong, P.
R. China 250003
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15
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Li Y, Fan X, Zhang H, Ai F, Jiao Y, Zhang Q, Zhang Z. Pretreatment of corn stover by torrefaction for improving reducing sugar and biohydrogen production. BIORESOURCE TECHNOLOGY 2022; 351:126905. [PMID: 35219788 DOI: 10.1016/j.biortech.2022.126905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
The torrefaction pretreatment technology with different temperature varying from 160℃ to 240℃ was utilized to enhance the enzymatic saccharification and hydrogen production potential of corn stover. The composition characteristics, Crystal Intensity (CrI), reducing sugars yield and hydrogen production of the pretreated corn stover were detected to explore the torrefaction pretreatment effectiveness. Results revealed that the reducing sugar yield and hydrogen production from corn stover were improved significantly through torrefaction pretreatment, both the maximum reducing sugar yield of 427.86 ± 19 mg/g Total solid(TS) and hydrogen yield of 123.72 mL/g TS were obtained at 200 ℃, increased by 46.41% and 70.79%, respectively. The kinetic parameters from Gompertz model showed torrefaction pretreatment could shorten the lag phase time of enzymatic saccharification and hydrogen production. The reducing sugar data can be fitted well by fractal-like kinetic model and Gompertz model.
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Affiliation(s)
- Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaoni Fan
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Haorui Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Fuke Ai
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Yinggang Jiao
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China.
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16
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Study on Comparisons of Bio-Hydrogen Yield Potential and Energy Conversion Efficiency between Stem and Leaf of Sweet Potato by Photo-Fermentation. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8040165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The source of raw materials for hydrogen production can be expanded by using vine waste as a substrate. Likewise, the effectiveness of vine waste can also be improved. However, plant parts such as stems and leaves often differ in physicochemical properties, which significantly affects the effectiveness of biochemical transformation. In this research, sweet potato was used as substrate in photo-fermentative hydrogen production (PFHP) to evaluate differences in bio-hydrogen production yield potential and energy conversion efficiency for its stem and leaf. Physicochemical properties were determined using the following techniques: elementary analysis, SEM, and X-ray diffraction. The Gompertz model was adopted to analyze the kinetic parameters, and energy conversion efficiency was calculated. The results showed that stem samples with loose structures produced more hydrogen, with a total cellulose and hemicellulose content of 44.6%, but crystallinity was only 29.67%. Cumulative bio-hydrogen yield of stem was 66.03 mL/g TS, which was 3.59 times higher than that of leaf. An increase of 258.93% in energy conversion efficiency was obtained when stem was used for PFHP. In conclusion, stem samples were more suitable for PFHP than leaf samples.
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17
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Jing Y, Li F, Li Y, Jiang D, Lu C, Zhang Z, Zhang Q. Biohydrogen production by deep eutectic solvent delignification-driven enzymatic hydrolysis and photo-fermentation: Effect of liquid-solid ratio. BIORESOURCE TECHNOLOGY 2022; 349:126867. [PMID: 35183719 DOI: 10.1016/j.biortech.2022.126867] [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: 01/05/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Deep eutectic solvent (DES), a new green solvent, was used to pretreat corncob to enhance biohydrogen production. As a result of the pretreatment, lignin was effectively removed, and the maximum delignification efficiency of 83.12% was achieved. Moreover, the contents of cellulose in the pretreated corncob significantly increased. DES pretreatment effect improved with increasing liquid-solid ratio. The pretreated corncob's enzymatic saccharification activity and hydrogen production were promoted due to the lower content of lignin. The best result was observed at a ratio of 25:1 (DES:corncob, g/g), in which the reducing sugar concentration (53.91 g/L) and the hydrogen yield (151 mL/g) was 6.8 and 3.1 times than that of untreated corncob, respectively. In addition, the lag time of hydrogen production was obviously shortened to 16.53 h due to the utilization of abundant available fermentable sugars, which accelerated hydrogen production.
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Affiliation(s)
- Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Fang Li
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China.
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18
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Li Y, Zhang Z, Jing Y, Liu T, Fan X, Zhu S, Jiang D, Lu C, Zhang H, Yue J, Zhang Y, Yao Z, Petracchini F, Li D, Zhang Q. Forecasting of reducing sugar yield from corncob after ultrafine grinding pretreatment based on GM(1,N) method and evaluation of biohydrogen production potential. BIORESOURCE TECHNOLOGY 2022; 348:126836. [PMID: 35150856 DOI: 10.1016/j.biortech.2022.126836] [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: 01/05/2022] [Revised: 02/02/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
Pretreatment of biomass helps to enhance reducing sugar yield from biomass during enzyme hydrolysis tests. Ultrafine grinding was applied to pretreat corncob. The effect of affecting factors including milling time, initial particle size and ball to power weight on the reducing sugar yield from corncob was investigated firstly. And then, an GM(1,N) model was constructed to model the ultrafine grinding pretreatment system predicting the reducing sugar yield from corncob based on experimental data, the results demonstrate GM(1,N) could predict the reducing sugar yield accurately and effectively without depending on the number of samples. The initial particle size was the most critical influential factor affecting reducing sugar yield according to the driving coefficient. The cumulative hydrogen yield was significantly affected by ultrafine grinding pretreatment, the hydrogen yield of pretreated corncob was 153.60 ± 5.8 mL/g total solids, which was higher than that of untreated corncob (113.20 ± 3.2 mL/g total solids).
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Affiliation(s)
- Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Tao Liu
- College of Resource and Environment, Henan University of Economics and Law, Zhengzhou 450002, China
| | - Xiaoni Fan
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Shengnan Zhu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Jianzhi Yue
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Yang Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Zhun Yao
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Francesco Petracchini
- Institute of Atmospheric Pollution Research, National Research Council of Italy, 29300 Rome, Italy
| | - Defeng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China.
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19
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Zheng W, Ma Y, Wang X, Wang X, Li J, Tian Y, Zhang X. Producing high-quality cultivation substrates for cucumber production by in-situ composting of corn straw blocks amended with biochar and earthworm casts. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 139:179-189. [PMID: 34973573 DOI: 10.1016/j.wasman.2021.12.010] [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: 01/24/2021] [Revised: 12/01/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
In-situ composting is an efficient method for the dispose of crop residues. However, the high organic carbon content and low water-holding capacity of corn (Zea mays L.) straw can easily result in a slow composting process with high nutrient loss. In this study, compressed corn straw blocks was a control (S), straw mixed with earthworm casts (SE), straw mixed with biochar (SB), straw mixed with earthworm casts and biochar (SEB) were treatments to determine their effects on in-situ composting performance. In general, compared with S, the thermophilic period was extended by 14, 13 and 3 days in SE, SB and SEB, respectively, reduced nutrient loss, the water holding porosity of SE and SEB increased by 28.67% and 24.03%. Besides, the bacterial Shannon and Pielou's indices of SEB increased by 9.42% and 9.33%, respectively, and the relative abundance of Acinetobacter was increased in SB and SEB. Amino acid metabolism and carbohydrate metabolism were the most abundant metabolic processes in composts. SEB showed not only the highest cucumber yields, but also the highest OQI. The OQI of the CCSBs was significantly and positively correlated with cucumber yields (P < 0.001). These results indicated that the combination of earthworm casts and biochar was more effective than each single additive during in-situ composting of corn straw blocks, and emphasized that the overall quality of CCSBs played pivotal roles in determining the agronomic performance of CCSBs. In addition, the in-situ composting of corn straw blocks could be used to produce high-quality cultivation substrates.
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Affiliation(s)
- Wende Zheng
- College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China
| | - Yongjie Ma
- College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China
| | - Xiaodong Wang
- College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China
| | - Xingyi Wang
- College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China
| | - Jianshe Li
- College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China
| | - Yongqiang Tian
- College of Horticulture, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, Beijing 100193, China.
| | - Xueyan Zhang
- College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China.
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20
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Zhang T, Jiang D, Li Y, Zhang H, Zhang Z, Jing Y, Lu C, Zhang Y, Xia C, Zhang Q. Lignin removal, reducing sugar yield and photo-fermentative biohydrogen production capability of corn stover: Effects of different pretreatments. BIORESOURCE TECHNOLOGY 2022; 346:126437. [PMID: 34852280 DOI: 10.1016/j.biortech.2021.126437] [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: 10/19/2021] [Revised: 11/20/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
The effects of different pretreatment methods, including hydrothermal, acid, alkali, acid-heat and alkali-heat on lignin removal, reducing sugar (RS) yield and photo-fermentative biohydrogen production (PFHP) capability of corn stover (CS) were studied. NaOH-heat pretreatment was the most effective for lignin removal from CS, and the lignin removal rate reached 77%. All the studied pretreatment methods improved the total RS yield of CS, and the highest total RS yield (46.1 g/100 g raw material (RM)) was obtained from 2% NaOH-heat pretreated CS. 2% NaOH pretreatment realized the best PFHP of CS, which increased the hydrogen yield (HY), maximal hydrogen production rate (HPR) and highest hydrogen content (HC) by 31.9%, 50.9% and 20.1% respectively, and shortened hydrogen production lag time (HPLT) by 58.8% over that of untreated CS. However, NaOH-heat and 4% NaOH pretreatment weakened the PFHP capability of CS.
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Affiliation(s)
- Tian Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Yang Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Chenxi Xia
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China.
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21
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Zhang Q, Jin P, Li Y, Zhang Z, Zhang H, Ru G, Jiang D, Jing Y, Zhang X. Analysis of the characteristics of paulownia lignocellulose and hydrogen production potential via photo fermentation. BIORESOURCE TECHNOLOGY 2022; 344:126361. [PMID: 34801718 DOI: 10.1016/j.biortech.2021.126361] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Paulownia biomass is rich in carbohydrates, making which a potential feedstock for biohydrogen production. In the study, different parts and varieties of Paulownia were chose as substrates to evaluate hydrogen production potential of paulownia lignocellulose via biohydrogen production by photo fermentation (BHPPF) and energy conversion efficiency (ECE). Results showed the highest cumulative hydrogen yield (CHY) of 67.11 mL/g total solids (TS) and ECE of 4.74% were obtained from leaves of Paulownia, which were 121.06% and 115.45% higher than those of the branches. Moreover, Paulownia jianshiensis leaves were found to be the best variety for BHPPF, with the maximum CHY of 98.83 mL/g TS and ECE of 7.18%. Using Paulownia waste as the substrate to produce hydrogen helps broaden the range of raw materials for BHPPF and improve the economic utilization of forestry waste.
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Affiliation(s)
- Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Peng Jin
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China.
| | - Guangming Ru
- Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy(MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Xueting Zhang
- Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
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22
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Chen Z, Jiang D, Zhang T, Lei T, Zhang H, Yang J, Shui X, Li F, Zhang Y, Zhang Q. Comparison of three ionic liquids pretreatment of Arundo donax L. For enhanced photo-fermentative hydrogen production. BIORESOURCE TECHNOLOGY 2022; 343:126088. [PMID: 34624469 DOI: 10.1016/j.biortech.2021.126088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Ionic liquids (ILs) pretreatment has been regarded as a promising green way to treat lignocellulosic biomass. 1-Butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4), 1-allyl-3-methylimidazolium chloride ([Amim]Cl), and 1-Butyl-3-methylimidazolium Hydrogen Sulfate ([Bmim]HSO4) with different loadings (2, 4, 8, and 16 g/L) were adopted to pretreat the Arundo donax L.. 16 g/L [Bmim]HSO4 pretreated Arundo donax L. obtained the highest sugar yield of 7.9 g/L during the enzymatic hydrolysis and hydrogen yield of 106.1 mL/g TS during the photo-fermentation, which were 68.8 % and 35.3 % higher than those of untreated Arundo donax L., respectively. Moreover, volatile fatty acids (VFAs) distribution revealed that acetic acid was the main by-product during hydrogen production process with ILs pretreated Arundo donax L.. Besides, the relationship between sugar yield and hydrogen yield was the closest based on scatter matrix analysis. This study helps to understand of correlation between ILs pretreatment with the behavior of bioenergy production.
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Affiliation(s)
- Zhou Chen
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tian Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tingzhou Lei
- Changzhou University, Changzhou 213164, PR China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Jiabin Yang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Xuenan Shui
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Fang Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yang Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs of China, Henan Agricultural University, Zhengzhou 450002, PR China.
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Zhao L, Sun ZF, Zhang CC, Nan J, Ren NQ, Lee DJ, Chen C. Advances in pretreatment of lignocellulosic biomass for bioenergy production: Challenges and perspectives. BIORESOURCE TECHNOLOGY 2022; 343:126123. [PMID: 34653621 DOI: 10.1016/j.biortech.2021.126123] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/06/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
As a clean and renewable energy, bioenergy is one of the most promising alternatives to fossil fuels. Lignocellulose possesses great potential for bioenergy production, but the recalcitrant and heterogeneous structure limits its application. Pretreatment technology offers an effective solution to fractionate the main components of the lignocellulose and uncover the available cellulose. The obtained feedstock can be applied to bioconversion into energy, e.g., bioethanol, biogas, biohydrogen, etc. Here, the current state of lignocellulose pretreatment technologies was comprehensively reviewed, the advances in bioenergy production from pretreated lignocellulose was described, with particular attention to key challenges involved. Several new strategies for overcoming pretreatment barriers to realize highly efficient lignocellulose bioconversion were highlighted. The insights given in this review will facilitate further development on lignocellulosic bioenergy production, towards addressing the global energy crisis and climate change related to the use of fossil fuels.
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Affiliation(s)
- Lei Zhao
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Zhong-Fang Sun
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Cheng-Cheng Zhang
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jun Nan
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan
| | - Chuan Chen
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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24
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Zhang Q, Zhu S, Zhang Z, Zhang H, Xia C. Enhancement strategies for photo-fermentative biohydrogen production: A review. BIORESOURCE TECHNOLOGY 2021; 340:125601. [PMID: 34330005 DOI: 10.1016/j.biortech.2021.125601] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
Biohydrogen production by photo fermentation is an attractive clean energy production approach with less environmental pollution and higher substrate conversion. In recent years, various measures have been used to improve biohydrogen production performance, but there is a lack of systematic and comprehensive summary and analysis. Hence, the recent literatures on enhancing biohydrogen production by photo fermentation were summarized, and the functional mechanisms of enhancement strategies were explained. In this work, these measures were divided into four categories according to their roles in photo fermentation, including substrate pretreatment, bacterial modification and immobilization, additive addition, reactor design optimization. It can be concluded that the optimal enhancement conditions of each strategy were affected by substrate type, strain and process parameters. According to the results of this work, it was expected to give readers a clear understanding and provide a scientific reference of the research of photosynthetic biohydrogen production.
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Affiliation(s)
- Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S&T University, Zhengzhou 450006, China
| | - Shengnan Zhu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China.
| | - Chenxi Xia
- Institute of Agricultural Engineering, Huanghe S&T University, Zhengzhou 450006, China
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25
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Zhang T, Jiang D, Li Y, Zhang H, Zhang Z, Petracchini F, Paolini V, Zhang Y, Yue T, Zhang Q. Study of the interrelationship between nano-TiO 2 addition and photo-fermentative bio-hydrogen production of corn straw. BIORESOURCE TECHNOLOGY 2021; 338:125549. [PMID: 34274580 DOI: 10.1016/j.biortech.2021.125549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
This study explored the interrelationship between nano-TiO2 addition and photo-fermentative hydrogen production (PFHP) of corn straw. The maximum cumulative hydrogen volume (CHV) was up to 688.8 mL under the optimal photo-fermentative process conditions with nano-TiO2 addition of 300 mg/L. Initial pH and interaction between substrate concentration and light intensity had highly significant effects on PFHP of corn straw with nano-TiO2 addition. With the improvement of CHV, nano-TiO2 addition decreased the optimal initial pH and substrate concentration for PFHP of corn straw. Moreover, nano-TiO2 addition promoted the metabolism of butyric acid and acetic acid by photosynthetic bacteria HAU-M1, and significantly reduced the total concentration of intermediate byproducts during hydrogen production to a low level of 1.6-2.5 g/L, thus making the CHV, maximum hydrogen production rate (HPR) and average hydrogen content (HC) increased by 32.6%, 27.9% and 8.3% respectively over the control without nano-TiO2 addition.
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Affiliation(s)
- Tian Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Francesco Petracchini
- Institute of Atmospheric Pollution Research of Italian National Research Council, Rome 29300, Italy
| | - Valerio Paolini
- Institute of Atmospheric Pollution Research of Italian National Research Council, Rome 29300, Italy
| | - Yang Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Tian Yue
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy (MOA of China), Henan Agricultural University, Zhengzhou 450002, China.
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26
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Zhuang H, Lee PH, Wu Z, Jing H, Guan J, Tang X, Tan GYA, Leu SY. Genomic driven factors enhance biocatalyst-related cellulolysis potential in anaerobic digestion. BIORESOURCE TECHNOLOGY 2021; 333:125148. [PMID: 33878497 DOI: 10.1016/j.biortech.2021.125148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/01/2021] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion (AD) is a promising technology to recover bioenergy from biodegradable biomass, including cellulosic wastes. Through a few fractionation/separation techniques, cellulose has demonstrated its potential in AD, but the performance of the process is rather substrate-specific, as cellulolysis bacteria are sensitive to the enzyme-substrate interactions. Cellulosome is a self-assembled enzyme complex with many functionalized modules in the bacteria which has been gradually studied, however the genomic fingerprints of the culture-specific cellulosome in AD are relatively unclear especially under processing conditions. To clarify the key factors affecting the cellulosome induced cellulolysis, this review summarized the most recent publications of AD regarding the fates of cellulose, sources and functional genes of cellulosome, and omics methods for functional analyses. Different processes for organic treatment including applying food grinds in sewer, biomass valorization, cellulose fractionation, microaeration, and enzymatic hydrolysis enhanced fermentation, were highlighted to support the sustainable development of AD technology.
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Affiliation(s)
- Huichuan Zhuang
- Dept. of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Po-Heng Lee
- Dept. of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Zhuoying Wu
- Dept. of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Houde Jing
- Dept. of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Jianyu Guan
- Dept. of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Xiaojing Tang
- Dept. of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Giin-Yu Amy Tan
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Shao-Yuan Leu
- Dept. of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
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27
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Jiang D, Yue T, Zhang Z, He C, Jing Y, Lu C, Zhang H, Chen Z, Zhang Q. A strategy for successive feedstock reuse to maximize photo-fermentative hydrogen production of Arundo donax L. BIORESOURCE TECHNOLOGY 2021; 329:124878. [PMID: 33652190 DOI: 10.1016/j.biortech.2021.124878] [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: 01/05/2021] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
This study proposed a strategy to maximize the hydrogen yield by reusing feedstock of Arundo donax L. For this purpose, a successive 4-batch photo-fermentative hydrogen production (PFHP) was carried out to test the strategy. About 50% of total hydrogen yield was additionally obtained by reusing the Arundo donax L for successive 4 times in comparison to single 1st batch (161.4 mL/U. cell dry weight). In addition to the highest hydrogen yield, the maximum hydrogen production rate (6.0 mL/U. cell dry weight /h), and the highest volatile fatty acids (VFAs) concentration (32 mM) were also obtained from the 1st batch, while the 2nd batch gave the maximum substrate conversion efficiency (96.5%). Moreover, a positive relationship between the sum of acetic and butyric acids with hydrogen yields was observed. This strategy would help in enhancing hydrogen yield that coupled with cost reduction for biohydrogen production.
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Affiliation(s)
- Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Tian Yue
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Chao He
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhou Chen
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, China.
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Abstract
Due to its characteristics, hydrogen is considered the energy carrier of the future. Its use as a fuel generates reduced pollution, as if burned it almost exclusively produces water vapor. Hydrogen can be produced from numerous sources, both of fossil and renewable origin, and with as many production processes, which can use renewable or non-renewable energy sources. To achieve carbon neutrality, the sources must necessarily be renewable, and the production processes themselves must use renewable energy sources. In this review article the main characteristics of the most used hydrogen production methods are summarized, mainly focusing on renewable feedstocks, furthermore a series of relevant articles published in the last year, are reviewed. The production methods are grouped according to the type of energy they use; and at the end of each section the strengths and limitations of the processes are highlighted. The conclusions compare the main characteristics of the production processes studied and contextualize their possible use.
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Yang G, Li Y, Zhen F, Xu Y, Liu J, Li N, Sun Y, Luo L, Wang M, Zhang L. Biochemical methane potential prediction for mixed feedstocks of straw and manure in anaerobic co-digestion. BIORESOURCE TECHNOLOGY 2021; 326:124745. [PMID: 33508641 DOI: 10.1016/j.biortech.2021.124745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
To rapidly estimate the biochemical methane potential (BMP) of feedstocks, different multivariate regression models were established between BMP and the physicochemical indexes or near-infrared spectroscopy (NIRS). Mixed fermentation feedstocks of corn stover and livestock manure were rapidly detected BMP in anaerobic co-digestion (co-AD). The results showed that the predicted accuracy of NIRS model based on characteristic wavelengths selected by multiple competitive adaptive reweighted sampling outperformed all regression models based on the physicochemical indexes. For the NIRS regression model, coefficient of determination, root mean squares error, relative root mean squares error, mean relative error and residual predictive deviation of the validation set were 0.982, 6.599, 2.713%, 2.333% and 7.605. The results reveal that the predicted accuracy of NIRS model is very high, and meet the requirements of rapid prediction of BMP for co-AD feedstocks in practical biogas engineering.
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Affiliation(s)
- Gaixiu Yang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS Key Laboratory of Renewable Energy), Guangzhou 510640, PR China
| | - Ying Li
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS Key Laboratory of Renewable Energy), Guangzhou 510640, PR China
| | - Feng Zhen
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS Key Laboratory of Renewable Energy), Guangzhou 510640, PR China
| | - Yonghua Xu
- College of Electric and Information, Northeast Agricultural University, Harbin 150030, PR China
| | - Jinming Liu
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS Key Laboratory of Renewable Energy), Guangzhou 510640, PR China; College of Information and Electrical Engineering, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang 163319, PR China.
| | - Nan Li
- Experimental Practice and Demonstration Centre, Northeast Agricultural University, Harbin 150030, PR China
| | - Yong Sun
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China
| | - Lina Luo
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China
| | - Ming Wang
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China
| | - Lingling Zhang
- College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China
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Liu J, Jin S, Bao C, Sun Y, Li W. Rapid determination of lignocellulose in corn stover based on near-infrared reflectance spectroscopy and chemometrics methods. BIORESOURCE TECHNOLOGY 2021; 321:124449. [PMID: 33285506 DOI: 10.1016/j.biortech.2020.124449] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
In this study, a rapid detection method based on near-infrared reflectance spectroscopy was proposed for measuring the contents of cellulose, hemicellulose and lignin in corn stover. In the basis of strategies of variable selection, feature extraction and nonlinear modeling, BiPLS-PCA-SVM was constructed using backward interval partial least squares combined with principal component analysis and support vector machine, which was used to improve the performance of spectral regression calibration model. For BiPLS-PCA-SVM model, the determination coefficients, root mean squared error and residual predictive deviation for the validation set were 0.906, 0.900% and 3.213 for cellulose; 0.987, 0.797% and 9.071 for hemicellulose; and 0.936, 0.264% and 4.024 for lignin, correspondingly. The results indicate that near-infrared reflectance spectroscopy combined with BiPLS-PCA-SVM can provide a reliable alternative strategy to detect contents of lignocellulosic components for pretreated corn stover in the anaerobic digestion process.
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Affiliation(s)
- Jinming Liu
- College of Information and Electrical Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Shuo Jin
- College of Information and Electrical Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Changhao Bao
- College of Information and Electrical Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China
| | - Yong Sun
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China.
| | - Wenzhe Li
- College of Engineering, Northeast Agricultural University, Harbin 150030, PR China
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31
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Qu J, Sun Y, Awasthi MK, Liu Y, Xu X, Meng X, Zhang H. Effect of different aerobic hydrolysis time on the anaerobic digestion characteristics and energy consumption analysis. BIORESOURCE TECHNOLOGY 2021; 320:124332. [PMID: 33157447 DOI: 10.1016/j.biortech.2020.124332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/23/2020] [Accepted: 10/24/2020] [Indexed: 06/11/2023]
Abstract
Aerobic hydrolysis of stover before anaerobic digestion is beneficial to improve the biodegradability of corn stover. Aerobic hydrolysis of corn stover at 43 °C was conducted to investigate the effects of hydrolysis time (0 h, 8 h, 16 h, and 24 h) on the degradation of lignocellulose from corn stover and material conversion. Further anaerobic digestion and energy consumption analysis with the digestion temperature of 36 °C were carried out. The accumulation rate of volatile fatty acids began to slow down after 16 h of hydrolysis, and the concentration of acetic acid reached 221.85 mmol/L at 24 h of hydrolysis. The degradation rate of lignocellulose was obviously increased after hydrolysis. When the hydrolysis time was 16 h, it reached the maximum cumulative methane production with 268.75 ml/g VS. In terms of biogas production and energy conversion efficiency, it is more appropriate to choose 16 h as hydrolysis time in biogas engineering.
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Affiliation(s)
- Jingbo Qu
- College of Engineering, Northeast Agriculture University, Harbin 150030, PR China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Yong Sun
- College of Engineering, Northeast Agriculture University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road 3#, Yangling, Shaanxi 712100, PR China
| | - Yuyingnan Liu
- College of Engineering, Northeast Agriculture University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Xinrui Xu
- College of Engineering, Northeast Agriculture University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Xianghui Meng
- College of Engineering, Northeast Agriculture University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China
| | - Hongqiong Zhang
- College of Engineering, Northeast Agriculture University, Harbin 150030, PR China; Key Laboratory of Agricultural Renewable Resources Utilization Technology and Equipment in Cold Areas of Heilongjiang Province, Harbin 150030, PR China; Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Henan Agricultural University, Zhengzhou 450002, PR China.
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Meng X, Ma L, Li T, Zhu H, Guo K, Liu D, Ran W, Shen Q. The functioning of a novel protein, Swollenin, in promoting the lignocellulose degradation capacity of Trichoderma guizhouense NJAU4742 from a proteomic perspective. BIORESOURCE TECHNOLOGY 2020; 317:123992. [PMID: 32799087 DOI: 10.1016/j.biortech.2020.123992] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 05/25/2023]
Abstract
The functioning of a novel auxiliary enzyme, TgSWO from Trichoderma guizhouense NJAU4742, was investigated based on the proteomic analysis of wild-type (WT), knockout (KO) and overexpression (OE) treatments. The results showed that the cellulase and hemicellulase activities of OE and WT were significantly higher than those of KO. Simultaneously, tandem mass tag (TMT) analysis results indicated that cellulases and hemicellulases were significantly upregulated in OE, especially hydrophobin (HFB, A1A105805.1) and endo-β-1,4-glucanases (A1A101831.1), with ratios of 43.73 and 9.88, respectively, compared with WT. The synergistic effect of TgSWO on cellulases increased the reducing sugar content by 1.45 times in KO + TgSWO (1.8 mg) compared with KO, and there was no significant difference between KO + TgSWO (1.2 mg) and WT. This study elucidated the function of TgSWO in promoting the lignocellulose degradation capacity of NAJU4742, which provides new insights into the efficient conversion of lignocellulose.
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Affiliation(s)
- Xiaohui Meng
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Lei Ma
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Tuo Li
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Han Zhu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Kai Guo
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Shandong Province Key Laboratory for Biosensors, Jinan 250014, China
| | - Dongyang Liu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Wei Ran
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Qirong Shen
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
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Xing BS, Cao S, Han Y, Wang XC, Wen J, Zhang K. A comparative study of artificial cow and sheep rumen fermentation of corn straw and food waste: Batch and continuous operation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 745:140731. [PMID: 32717608 DOI: 10.1016/j.scitotenv.2020.140731] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
To optimize the artificial rumen microorganism sources and develop a stable artificial rumen system, batch and continuous operation were investigated with corn straw and food waste as substrates. The batch trials evaluated the volatile fatty acid (VFA) yield, biogas production, and lignocellulose degradation efficiency. The continuous test evaluated the performance of the artificial cow and sheep rumen systems using a dynamic membrane bioreactor (DMBR) with a stepwise organic loading rate at mesophilic temperature. The anaerobic digestion (AD) of the lignocellulose biomass after rumen fermentation pretreatment and of the permeate from the artificial rumen system were also evaluated for CH4 production. The results indicated that the cow rumen microorganisms were more suitable than sheep rumen microorganisms for lignocellulosic biomass pretreatment and maximized the CH4 yield through the AD process without inhibition. After approximately four months of continuous operation, a stable and continuous artificial rumen system for lignocellulosic biomass degradation was achieved with cow rumen fluid as inoculum. Based on analysis of the core lignocellulose-degrading enzyme levels and gel filtration chromatography, the cow rumen microorganisms could secrete more extracellular multienzyme complexes to hydrolyze lignocellulosic biomass than the sheep rumen microorganisms in vitro. During the batch and continuous operations, a high diversity and similar richness of bacteria and fungi demonstrated that the cow rumen microorganisms can be used as a preferred inoculum for the artificial rumen system. The use of an artificial cow rumen system with a DMBR is a promising way to construct a stable and continuous artificial rumen system to biodegrade lignocellulosic biomass for biogas production.
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Affiliation(s)
- Bao-Shan Xing
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi, Key Laboratory of Environmental Engineering, Shaanxi, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China
| | - Sifan Cao
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi, Key Laboratory of Environmental Engineering, Shaanxi, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China
| | - Yule Han
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi, Key Laboratory of Environmental Engineering, Shaanxi, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China
| | - Xiaochang C Wang
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi, Key Laboratory of Environmental Engineering, Shaanxi, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China.
| | - Junwei Wen
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi, Key Laboratory of Environmental Engineering, Shaanxi, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China
| | - Kaidi Zhang
- International Science and Technology Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Engineering Technology Research Center for Wastewater Treatment and Reuse, Shaanxi, Key Laboratory of Environmental Engineering, Shaanxi, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an 710055, China
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Lipid Accumulation by Xylose Metabolism Engineered Mucor circinelloides Strains on Corn Straw Hydrolysate. Appl Biochem Biotechnol 2020; 193:856-868. [PMID: 33200265 DOI: 10.1007/s12010-020-03427-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/11/2020] [Indexed: 12/27/2022]
Abstract
Previously, we presented a novel approach for increasing the consumption of xylose and the lipid yield by overexpressing the genes coding for xylose isomerase (XI) and xylulokinase (XK) in Mucor circinelloides. In the present study, an in-depth analysis of lipid accumulation by xylose metabolism engineered M. circinelloides strains (namely Mc-XI and Mc-XK) using corn straw hydrolysate was to be explored. The results showed that the fatty acid contents of the engineered M. circinelloides strains were, respectively, increased by 19.8% (in Mc-XI) and 22.3% (in Mc-XK) when compared with the control strain, even though a slightly decreased biomass in these engineered strains was detected. Moreover, the xylose uptake rates of engineered strains in the corn straw hydrolysate were improved significantly by 71.5% (in Mc-XI) and 68.8% (in Mc-XK), respectively, when compared with the control strain. Maybe the increased utilization of xylose led to an increase in lipid synthesis. When the recombinant M. circinelloides strains were cultured in corn straw hydrolysate medium with the carbon-to-nitrogen ratio (C/N ratio) of 50 and initial pH of 6.0, at 30 °C and 500 rpm for 144 h, a total biomass of 12.6-12.9 g/L with a lipid content of 17.2-17.7% (corresponding to a lipid yield of 2.17-2.28 g/L) was achieved. Our study provides a foundation for the further application of the engineered M. circinelloides strains to produce lipid from lignocelluloses.
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Lignocellulosic Biomass as a Substrate for Oleaginous Microorganisms: A Review. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10217698] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Microorganisms capable of accumulating lipids in high percentages, known as oleaginous microorganisms, have been widely studied as an alternative for producing oleochemicals and biofuels. Microbial lipid, so-called Single Cell Oil (SCO), production depends on several growth parameters, including the nature of the carbon substrate, which must be efficiently taken up and converted into storage lipid. On the other hand, substrates considered for large scale applications must be abundant and of low acquisition cost. Among others, lignocellulosic biomass is a promising renewable substrate containing high percentages of assimilable sugars (hexoses and pentoses). However, it is also highly recalcitrant, and therefore it requires specific pretreatments in order to release its assimilable components. The main drawback of lignocellulose pretreatment is the generation of several by-products that can inhibit the microbial metabolism. In this review, we discuss the main aspects related to the cultivation of oleaginous microorganisms using lignocellulosic biomass as substrate, hoping to contribute to the development of a sustainable process for SCO production in the near future.
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