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Chang S, Yun C, Yang B, Duan J, Chen T, Liu L, Li B, Guo S, Zhang S. Comprehensive reutilization of Glycyrrhiza uralensis residue by extrusion-biological pretreatment for coproduction of flavonoids, cellulase, and ethanol. BIORESOURCE TECHNOLOGY 2024; 406:131002. [PMID: 38889869 DOI: 10.1016/j.biortech.2024.131002] [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: 01/20/2024] [Revised: 02/22/2024] [Accepted: 06/15/2024] [Indexed: 06/20/2024]
Abstract
A continuous chemical-free green approach was investigated for the comprehensive reutilization of all components in herbal extraction residues (HERs), taking Glycyrrhiza uralensis residue (GUR) as an example. The GUR structural changes induced by mechanical extrusion which improve the specific surface area and enzyme accessibility of GUR. With 3 % pretreated GUR loading of high-tolerance Penicillium oxalicum G2. The reducing sugar yield of 11.45 g/L was achieved, along with an 81.06 % in situ enzymatic hydrolysis. Finally, 8.23 g/L bioethanol (0.40 g/g total sugar) was produced from GUR hydrolysates after 24 h fermentation of Pichia stipitis G32. The amount of functional medicinal ingredients extracted from GUR after hydrolysis (39.63 mg/g) was 37.69 % greater than that of un-pretreated GUR. In total, 1.49 g flavonoids, 294.36 U cellulase, and 14.13 g ethanol could be produced from 100 g GUR using this process, illustrating that this green and efficient process has the potential for industrial production.
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Affiliation(s)
- Siyuan Chang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China; Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Chenke Yun
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Bingqian Yang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Tianyi Chen
- Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Lei Liu
- Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Bingfeng Li
- Bio-based Platform Chemicals Catalysis Engineering Technology Research and Development Center of Jiangsu Province, College of Life and Health, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China.
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Sen Zhang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China.
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Zheng Y, Ngo HH, Luo H, Wang R, Li C, Zhang C, Wang X. Production of cost-competitive bioethanol and value-added co-products from distillers' grains: Techno-economic evaluation and environmental impact analysis. BIORESOURCE TECHNOLOGY 2024; 397:130470. [PMID: 38395236 DOI: 10.1016/j.biortech.2024.130470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/17/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024]
Abstract
Here, Baijiu distillers' grains (BDGs) were employed in biorefinery development to generate value-added co-products and bioethanol. Through ethyl acetate extraction at a 1:6 solid-liquid ratio for 10 h, significant results were achieved, including 100 % lactic acid and 92 % phenolics recovery. The remaining BDGs also achieved 99 % glucan recovery and 81 % glucan-to-glucose conversion. Simultaneous saccharification and fermentation of remaining BDGs at 30 % loading resulted in 78.5 g bioethanol/L with a yield of 94 %. The minimum selling price of bioethanol varies from $0.149-$0.836/kg, contingent on the co-product market prices. The biorefinery processing of one ton of BDGs caused a 60 % reduction in greenhouse gas emissions compared to that of the traditional production of 88 kg corn-lactic acid, 70 kg antioxidant phenolics, 234 kg soybean protein, and 225 kg corn-bioethanol, along with emissions from BDG landfilling. The biorefinery demonstrated a synergistic model of cost-effective bioethanol production and low-carbon emission BDGs treatment.
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Affiliation(s)
- Yuxi Zheng
- Department of Resources and Environmental Science, Moutai Institute, Renhuai 564500, Guizhou Province, China; Guizhou Key Laboratory of Microbial Resources Exploration in Fermentation industry, Kweichow Moutai Group, Zunyi 564501, China
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, FEIT, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Han Luo
- Guizhou Key Laboratory of Microbial Resources Exploration in Fermentation industry, Kweichow Moutai Group, Zunyi 564501, China; School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Ruxue Wang
- Department of Resources and Environmental Science, Moutai Institute, Renhuai 564500, Guizhou Province, China
| | - Chun Li
- Baolu Green Technology (Chengdu) Co., Ltd., Chengdu 610000, China
| | - Chaolong Zhang
- Baolu Green Technology (Chengdu) Co., Ltd., Chengdu 610000, China
| | - Xuliang Wang
- Guizhou Key Laboratory of Microbial Resources Exploration in Fermentation industry, Kweichow Moutai Group, Zunyi 564501, China; School of Biotechnology, Jiangnan University, Wuxi 214122, China; China Alcoholic Drinks Association, Beijing 100037, China.
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Xu C, Wang Y, Zhang C, Liu J, Fu H, Zhou W, Gong Z. Highly-efficient lipid production from hydrolysate of Radix paeoniae alba residue by oleaginous yeast Cutaneotrichosporon oleaginosum. BIORESOURCE TECHNOLOGY 2024; 391:129990. [PMID: 37931762 DOI: 10.1016/j.biortech.2023.129990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/24/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Valorization of herbal extraction residues (HERs) into value-added products is pivotal for the sustainability of Chinese medicine industry. Here, seven different enzymatic hydrolysates of dilute acid pretreated HERs were evaluated for lipid production by Cutaneotrichosporon oleaginosum. Among them, the highest sugar yield via hydrolysis and the maximum lipid production were obtained from Radix paeoniae alba residue (RPAR). More interestingly, high proportion of sugar polymers was disintegrated into fermentable sugars during the pretreatment step, allowing a cheap non-enzymatic route for producing sugars from RPAR. A repeated dilute acid pretreatment gained a high sugar concentration of 241.6 g/L through reusing the pretreatment liquor (PL) for four times. Biomass, lipid concentration, and lipid content achieved 49.5 g/L, 35.7 g/L and 72.2 %, respectively, using fed-batch culture of PL. The biodiesel parameters indicated lipids produced from HERs were suitable for biodiesel production. This study offers a cost-effective way to upgrade the HERs waste into micro-biodiesel.
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Affiliation(s)
- Chen Xu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Yanan Wang
- National Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, People's Republic of China
| | - Chuying Zhang
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Junheng Liu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Hanqi Fu
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Wenting Zhou
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China
| | - Zhiwei Gong
- School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan 430081, People's Republic of China.
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Zhu Z, Wu S, Qi B, Wang C, Luo J, Wan Y. High-solids enzymatic saccharification of starch-rich raw herbal biomass residues for producing high titers of glucose. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:86232-86243. [PMID: 37402046 DOI: 10.1007/s11356-023-28501-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 06/25/2023] [Indexed: 07/05/2023]
Abstract
The bioresource utilization of herbal biomass residues (HBRs) has been receiving more attention. Herein, three different HBRs from Isatidis Radix (IR) and Sophorae Flavescentis Radix (SFR) and Ginseng Radix (GR) were subjected to batch and fed-batch enzymatic hydrolysis to produce high-concentration glucose. Compositional analysis showed the three HBRs had substantial starch content (26.36-63.29%) and relatively low cellulose contents (7.85-21.02%). Due to their high starch content, the combined action of cellulolytic and amylolytic enzymes resulted in greater release of glucose from the raw HBRs compared to using the individual enzyme alone. Batch enzymatic hydrolysis of 10% (w/v) raw HBRs with low loadings of cellulase (≤ 10 FPU/g substrate) and amylolytic enzymes (≤ 5.0 mg/g substrate) led to a high glucan conversion of ≥ 70%. The addition of PEG 6000 and Tween 20 did not contribute to glucose production. Furthermore, to achieve higher glucose concentrations, fed-batch enzymatic hydrolysis was conducted using a total solid loading of 30% (w/v). After 48-h of hydrolysis, glucose concentrations of 125 g/L and 92 g/L were obtained for IR and SFR residues, respectively. GR residue yielded an 83 g/L glucose concentration after 96 h of digestion. The high glucose concentrations produced from these raw HBRs indicate their potential as ideal substrate for a profitable biorefinery. Notably, the obvious advantage of using these HBRs is the elimination of the pretreatment step, which is typically required for agricultural and woody biomass in similar studies.
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Affiliation(s)
- Zhenzhou Zhu
- Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Sirong Wu
- National R&D Center for Se-Rich Agricultural Products Processing, College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Benkun Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Caixia Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinhua Wan
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341119, China
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Long X, Lu Y, Guo H, Tang Y. Recent Advances in Solid Residues Resource Utilization in Traditional Chinese Medicine. ChemistrySelect 2023. [DOI: 10.1002/slct.202300383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Xu Long
- Shaanxi Qinling Chinese Herbal Medicine Application Development Engineering Technology Research Center Shaanxi University of Chinese Medicine Xianyang 712046 China
| | - Ying‐Lei Lu
- Shaanxi Qinling Chinese Herbal Medicine Application Development Engineering Technology Research Center Shaanxi University of Chinese Medicine Xianyang 712046 China
| | - Hui Guo
- Shaanxi Qinling Chinese Herbal Medicine Application Development Engineering Technology Research Center Shaanxi University of Chinese Medicine Xianyang 712046 China
| | - Yu‐Ping Tang
- Shaanxi Qinling Chinese Herbal Medicine Application Development Engineering Technology Research Center Shaanxi University of Chinese Medicine Xianyang 712046 China
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