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Wang F, Liu B, Cao W, Liu L, Zeng F, Qin C, Liang C, Huang C, Yao S. Novel dual-action vanillic acid pretreatment for efficient hemicellulose separation with simultaneous inhibition of lignin condensation. BIORESOURCE TECHNOLOGY 2023; 385:129416. [PMID: 37390932 DOI: 10.1016/j.biortech.2023.129416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Aromatic acids play a selective role in the separation of hemicellulose. Phenolic acids have demonstrated an inhibitory effect on lignin condensation. In the current study, vanillic acid (VA), which combines the characteristics of aromatic and phenolic acids, is used to separate eucalyptus. The efficient and selective separation of hemicellulose is achieved simultaneously at 170 °C, 8.0% VA concentration, and 80 min. The separation yield of xylose increased from 78.80% to 88.59% compared to acetic acid (AA) pretreatment. The separation yield of lignin decreased from 19.32% to 11.19%. In particular, the β-O-4 content of lignin increased by 5.78% after pretreatment. The results indicate that VA, as a "carbon positive ion scavenger", it preferentially reacts with the carbon-positive ion intermediate of lignin. Surprisingly, the inhibition of lignin condensation is achieved. This study provides a new starting point for the development of an efficient and sustainable commercial technology by organic acid pretreatment.
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Affiliation(s)
- Fei Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Baojie Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Wenqing Cao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Lu Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Fanyan Zeng
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Chengrong Qin
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Chen Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning, 530004, PR China.
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Duan S, He J, Xin X, Li L, Zou X, Zhong Y, Zhang J, Cui X. Characteristics of digested sludge-derived biochar for promoting methane production during anaerobic digestion of waste activated sludge. BIORESOURCE TECHNOLOGY 2023:129245. [PMID: 37268088 DOI: 10.1016/j.biortech.2023.129245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/04/2023]
Abstract
This study investigated a novel method for enhancing methane production during anaerobic digestion of waste activated sludge with digested sludge-derived biochar (DSBC). Using response surface methodology, the following process conditions for DSBC synthesis were optimized: heating rate = 13.23 °C/min, pyrolysis temperature = 516 °C, and heating time = 192 min. DSBC significantly enhanced the methane production by 48 % and improved key coenzyme activity that accelerated the bioconversion of organic matter while promoting the decomposition and transformation of volatile fatty acids. Consequently, the lag period of methane production was shortened to 4.89 days, while the average proportion of methane greatly increased to 73.22%. Thus, DSBC could facilitate efficient methanogenesis in the anaerobic system by promoting electron transfer between syntrophic partners through the charge-discharge cycle of surface oxygen-containing functional groups. The study provides a reference for the resource utilization of anaerobic sludge residues and efficient anaerobic methanogenesis from sludge.
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Affiliation(s)
- Shengye Duan
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Junguo He
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Xiaodong Xin
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, PR China
| | - Lin Li
- Key Laboratory of the Three Gorges Reservoir Region's Eco-environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400045, PR China
| | - Xiang Zou
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Yijie Zhong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Jie Zhang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Xinxin Cui
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, PR China
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Liu B, Liu L, Deng B, Huang C, Zhu J, Liang L, He X, Wei Y, Qin C, Liang C, Liu S, Yao S. Application and prospect of organic acid pretreatment in lignocellulosic biomass separation: A review. Int J Biol Macromol 2022; 222:1400-1413. [PMID: 36195224 DOI: 10.1016/j.ijbiomac.2022.09.270] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/20/2022] [Accepted: 09/28/2022] [Indexed: 11/28/2022]
Abstract
As a clean and efficient method of lignocellulosic biomass separation, organic acid pretreatment has attracted extensive research. Hemicellulose or lignin is selectively isolated and the cellulose structure is preserved. Effective fractionation of lignocellulosic biomass is achieved. The separation characteristics of hemicellulose or lignin by different organic acids were summarized. The organic acids of hemicellulose were separated into hydrogen ionized, autocatalytic and α-hydroxy acids according to the separation mechanism. The separation of lignin depends on the dissolution mechanism and spatial effect of organic acids. In addition, the challenges and prospects of organic acid pretreatment were analyzed. The separation of hemicellulose and enzymatic hydrolysis of cellulose were significantly affected by the polycondensation of lignin, which is effectively inhibited by the addition of green additives such as ketones or alcohols. Lignin separation was improved by developing a deep eutectic solvent treatment based on organic acid pretreatment. This work provides support for efficient cleaning of carbohydrate polymers and lignin to promote global carbon neutrality.
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Affiliation(s)
- Baojie Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Lu Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Baojuan Deng
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China
| | - Jiatian Zhu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Linlin Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Xinliang He
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Yuxin Wei
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Chengrong Qin
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China.
| | - Chen Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Shijie Liu
- Department of Paper and Bioprocess Engineering, SUNY College of Environmental Science and Forestry,1 Forestry Drive, Syracuse, NY 13210, United States
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China.
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Liu X, Li T, Wu S, Ma H, Yin Y. Structural characterization and comparison of enzymatic and deep eutectic solvents isolated lignin from various green processes: Toward lignin valorization. BIORESOURCE TECHNOLOGY 2020; 310:123460. [PMID: 32402988 DOI: 10.1016/j.biortech.2020.123460] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
In this work, several representative green processes were developed to extract the enzymatic lignin and deep eutectic solvents (DESs) isolated lignin from corn straw. The results revealed that enzymatic lignin and DESs isolated lignin had a relatively low and homogeneous molecular weight and DESs isolated lignin shown a higher purity. Enzymatic and DESs isolated lignin showed good representativeness and similar to original herbal lignin structures accompany few aryl ether linkage cleavages and oxidation phenomenon. Among them, the subcritical CO2-assisted autohydrolysis and ChCl/Lac DESs treatment exhibited a higher severity for lignin preparation, and sequence DESs isolated lignin had a better reactivity. The β-O-4 ether bonds and carbon-carbon bonds linkage were further broken up during the Lac and DESs sequence treatment. In short, the described processes showed practical significance for lignin extraction and potential valorization, as well as help to develop more novel strategies for the current biorefinery process.
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Affiliation(s)
- Xiao Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Tengfei Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Shubin Wu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China.
| | - Hao Ma
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Yihui Yin
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China
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Autocatalytic hydrothermal pretreatment by recycling byproduct organic acids to directionally depolymerize cassava straw. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Liu X, Wei W, Wu S. Synergism of organic acid and deep eutectic solvents pretreatment for the co-production of oligosaccharides and enhancing enzymatic saccharification. BIORESOURCE TECHNOLOGY 2019; 290:121775. [PMID: 31319212 DOI: 10.1016/j.biortech.2019.121775] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 06/10/2023]
Abstract
A novel pretreatment using organic acid synergism with deep eutectic solvents (DESs) was developed to the co-production of oligosaccharides, especially for the functional oligosaccharides, and enhancement of corn straws enzymatic saccharification. It was found that lactic acid (Lac) pretreatment combined with choline chloride/Lac system could not only selectively convert the hemicellulose to xylo-oligosaccharides (XOS), which account for 89.7% of total xylose in prehydrolysate (the functional XOS (DP < 5) took up about 35%), but also significantly promote the glucose release (33.2 g/100 g material) and well lignin separation (representing 40.9% in whole process), which better than the single organic pretreatment at higher modified severity index (SI). Structural features of various solids were characterized to better comprehend how hemicellulose and lignin removal influenced enzymatic hydrolysis. This work offered the mild and potential method to co-produce fermentable sugars with the effective separation and valorization of lignin.
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Affiliation(s)
- Xiao Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Weiqi Wei
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China
| | - Shubin Wu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, PR China.
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Lyu H, Zhang J, Zhou J, Lv C, Geng Z. The byproduct-organic acids strengthened pretreatment of cassava straw: Optimization and kinetic study. BIORESOURCE TECHNOLOGY 2019; 290:121756. [PMID: 31295573 DOI: 10.1016/j.biortech.2019.121756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/01/2019] [Accepted: 07/02/2019] [Indexed: 06/09/2023]
Abstract
The subcritical liquid hot water (SLHW) pretreatment could be strengthened by its byproduct-organic acids, such as acetic acid (AA), lactic acid (LA) and formic acid (FA). The effects of these three acids on the pretreatment were investigated by the yield of fermentable sugars. The results showed that the addition of acids could effectively catalyze the hydrolysis of hemicellulose to C5 sugars and contribute to the subsequent enzymatic hydrolysis of cellulose. It was found that all three organic acids promote xylose production, and the copresence of AA + LA could limit the content of the fermentation inhibitor. The optimum proportion of three organic acids were 0.33 wt%AA + 0.45 wt%LA + 0.20 wt%FA, and the yield of C5 sugars after pretreatment and C6 sugar after enzymatic hydrolysis were 89.06% and 78.56%, respectively. The kinetic studies proved that byproduct-organic acids could promote xylose production and inhibit its further degradation and explained that xylose would accumulate at lower temperatures.
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Affiliation(s)
- Huisheng Lyu
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Jia Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Jinyi Zhou
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Chunliu Lv
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zhongfeng Geng
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China.
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