1
|
Wu J, Li Y, Yin J, Wang C, Qi X, Zhou Y, Liu H, Wu P, Zhang J. Mutation breeding of high-stress resistant strains for succinic acid production from corn straw. Appl Microbiol Biotechnol 2024; 108:278. [PMID: 38558151 PMCID: PMC10984890 DOI: 10.1007/s00253-024-13112-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 02/29/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
The production of succinic acid from corn stover is a promising and sustainable route; however, during the pretreatment stage, byproducts such as organic acids, furan-based compounds, and phenolic compounds generated from corn stover inhibit the microbial fermentation process. Selecting strains that are resistant to stress and utilizing nondetoxified corn stover hydrolysate as a feedstock for succinic acid production could be effective. In this study, A. succinogenes CICC11014 was selected as the original strain, and the stress-resistant strain A. succinogenes M4 was obtained by atmospheric and room temperature plasma (ARTP) mutagenesis and further screening. Compared to the original strain, A. succinogenes M4 exhibited a twofold increase in stress resistance and a 113% increase in succinic acid production when hydrolysate was used as the substrate. By conducting whole-genome resequencing of A. succinogenes M4 and comparing it with the original strain, four nonsynonymous gene mutations and two upstream regions with base losses were identified. KEY POINTS: • A high-stress-resistant strain A. succinogenes M4 was obtained by ARTP mutation • The production of succinic acid increased by 113% • The mutated genes of A. succinogenes M4 were detected and analyzed.
Collapse
Affiliation(s)
- Jing Wu
- Shanxi Key Laboratory of Chemical Product Engineering, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yilian Li
- Shanxi Key Laboratory of Chemical Product Engineering, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Jinbao Yin
- Shanxi Key Laboratory of Chemical Product Engineering, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Chen Wang
- Shanxi Key Laboratory of Chemical Product Engineering, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xuejin Qi
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Yujie Zhou
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Hongjuan Liu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
| | - Pengfei Wu
- College of Life Science and Technology, Yangtze Normal University, Fuling Chongqing, 408100, China.
| | - Jianan Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China.
| |
Collapse
|
2
|
Rehman S, Yang YS, Patria RD, Zulfiqar T, Khanzada NK, Khan RJ, Lin CSK, Lee DJ, Leu SY. Substrate-related factors and kinetic studies of Carbohydrate-Rich food wastes on enzymatic saccharification. BIORESOURCE TECHNOLOGY 2023; 390:129858. [PMID: 37863332 DOI: 10.1016/j.biortech.2023.129858] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/08/2023] [Accepted: 10/08/2023] [Indexed: 10/22/2023]
Abstract
Food waste biorefinery is a sustainable approach to producing green chemicals, however the essential substrate-related factors hindering the efficacy of enzymatic hydrolysis have never been clarified. This study explored the key rate-limiting parameters and mechanisms of carbohydrate-rich food after different cooking and storing methods, i.e., impacts of compositions, structural diversities, and hornification. Shake-flask enzymatic kinetics determined the optimal dosages (0.5 wt% glucoamylase, 3 wt% cellulase) for food waste hydrolysis. First order kinetics and simulation results determined that reaction coefficient (K) of cooked starchy food was ∼ 3.63 h-1 (92 % amylum digestibility) within 2 h, while those for cooked cellulosic vegetables were 0.25-0.5 h-1 after 12 h of hydrolysis. Drying and frying reduced ∼ 71-89 % hydrolysis rates for rice, while hydrothermal pretreatment increased the hydrolysis rate by 82 % on vegetable wastes. This study provided insights into advanced control strategy and reduced the operational costs by optimized enzyme doses for food waste valorization.
Collapse
Affiliation(s)
- Shazia Rehman
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Yvette Shihui Yang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Raffel Dharma Patria
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Talha Zulfiqar
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Noman Khalid Khanzada
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Rabia Jalil Khan
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Carol Sze Ki Lin
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Duu-Jong Lee
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
| | - Shao-Yuan Leu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong; Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hong Kong; Research Centre for Resources Engineering towards Carbon Neutrality (RCRE), The Hong Kong Polytechnic University, Hong Kong.
| |
Collapse
|
3
|
Talekar S, Ekanayake K, Holland B, Barrow C. Food waste biorefinery towards circular economy in Australia. BIORESOURCE TECHNOLOGY 2023; 388:129761. [PMID: 37696335 DOI: 10.1016/j.biortech.2023.129761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 08/20/2023] [Accepted: 09/09/2023] [Indexed: 09/13/2023]
Abstract
Staggering amounts of food waste are produced in Australia, and this review provides food waste based biorefinery opportunities in moving towards a circular economy in Australia. The current food waste scenario in Australia including an overview of primary food waste sources, government regulation, and current management practices is presented. The major food waste streams include fruit and vegetable (waste from wine grapes, citrus, apple, potato, and tomato), nuts (almond processing waste), seafood (Fish waste), dairy whey, sugarcane bagasse, and household and businesses. The composition of these waste streams indicated their potential for use in biorefineries to produce value-added products via various pathways combining direct extraction and biological and thermochemical conversion. Finally, the efforts made in Australia to utilize food waste as a resource, as well as the challenges and future directions to promote the development of concrete and commercially viable technologies for food waste biorefinery, are described.
Collapse
Affiliation(s)
- Sachin Talekar
- School of Life and Environmental Sciences, Deakin University Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing Deakin University Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts Deakin University Waurn Ponds, Victoria 3216, Australia.
| | - Krishmali Ekanayake
- School of Life and Environmental Sciences, Deakin University Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing Deakin University Waurn Ponds, Victoria 3216, Australia
| | - Brendan Holland
- School of Life and Environmental Sciences, Deakin University Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts Deakin University Waurn Ponds, Victoria 3216, Australia
| | - Colin Barrow
- School of Life and Environmental Sciences, Deakin University Waurn Ponds, Victoria 3216, Australia; ARC Industrial Transformation Training Centre for Green Chemistry in Manufacturing Deakin University Waurn Ponds, Victoria 3216, Australia; Centre for Sustainable Bioproducts Deakin University Waurn Ponds, Victoria 3216, Australia
| |
Collapse
|
4
|
Zhou S, Ding N, Han R, Deng Y. Metabolic engineering and fermentation optimization strategies for producing organic acids of the tricarboxylic acid cycle by microbial cell factories. BIORESOURCE TECHNOLOGY 2023; 379:128986. [PMID: 37001700 DOI: 10.1016/j.biortech.2023.128986] [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: 02/22/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 05/03/2023]
Abstract
The organic acids of the tricarboxylic acid (TCA) pathway are important platform compounds and are widely used in many areas. The high-productivity strains and high-efficient and low-cost fermentation are required to satisfy a huge market size. The high metabolic flux of the TCA pathway endows microorganisms potential to produce high titers of these organic acids. Coupled with metabolic engineering and fermentation optimization, the titer of the organic acids has been significantly improved in recent years. Herein, we discuss and compare the recent advances in synthetic pathway engineering, cofactor engineering, transporter engineering, and fermentation optimization strategies to maximize the biosynthesis of organic acids. Such engineering strategies were mainly based on the TCA pathway and glyoxylate pathway. Furthermore, organic-acid-secretion enhancement and renewable-substrate-based fermentation are often performed to assist the biosynthesis of organic acids. Further strategies are also discussed to construct high-productivity and acid-resistant strains for industrial large-scale production.
Collapse
Affiliation(s)
- Shenghu Zhou
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Nana Ding
- College of Food and Health, Zhejiang A&F University, Hangzhou 311300, China
| | - Runhua Han
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, United States
| | - Yu Deng
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China.
| |
Collapse
|