化工进展 ›› 2025, Vol. 44 ›› Issue (5): 2489-2504.DOI: 10.16085/j.issn.1000-6613.2024-1598

• 合成生物制造 • 上一篇    

微生物细胞活力调控生产丁二酸

唐永圣(), 顾子蕴, 陈修来()   

  1. 江南大学生物工程学院,工业生物技术教育部重点实验室,江苏 无锡 214122
  • 收稿日期:2024-10-08 修回日期:2025-01-04 出版日期:2025-05-25 发布日期:2025-05-20
  • 通讯作者: 陈修来
  • 作者简介:唐永圣(2000—),男,硕士研究生,研究方向为微生物代谢工程。E-mail:6230209063@stu.jiangnan.edu.cn
  • 基金资助:
    国家重点研发计划(2019YFA0904900);中央高校基本科研业务费专项资金(JUSRP622001)

Regulation of microbial cell viability for succinic acid production

TANG Yongsheng(), GU Ziyun, CHEN Xiulai()   

  1. Key Laboratory of Industrial Biotechnology of Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
  • Received:2024-10-08 Revised:2025-01-04 Online:2025-05-25 Published:2025-05-20
  • Contact: CHEN Xiulai

摘要:

随着代谢工程技术的发展,微生物发酵法生产丁二酸受到广泛关注。目前,研究人员已经开发了多种高产丁二酸的工程菌株,包括大肠杆菌、产琥珀酸曼氏杆菌、产琥珀酸放线杆菌、谷氨酸棒状杆菌、解脂耶氏酵母等。然而,由于丁二酸发酵后期微生物细胞活力的不足,导致丁二酸生产效率严重下降,从而制约了丁二酸的高效生产与工业化应用。本文围绕微生物发酵生产丁二酸,探讨了提升微生物细胞活力的关键策略与方法,主要包括:基于内外源特定化合物供给的化学工程方法、基于改良细胞生长性能与环境适应性的代谢工程策略和基于发酵工程的发酵工艺优化方案。最后,对微生物发酵法生产丁二酸的产业化应用进行了展望。

关键词: 丁二酸, 大肠杆菌, 细胞活力, 代谢工程, 生物制造

Abstract:

With the development of metabolic engineering technologies, microbial fermentation for the production of succinic acid has received widespread attention. Currently, various engineered strains for high succinic acid production have been developed, including Escherichia coli, Mannheimia succiniciproducens, Actinobacillus succinogenes, Corynebacterium glutamicum, and Yarrowia lipolytica. However, due to the lack of microbial cell viability in the later stages of succinic acid fermentation, production efficiency significantly decreases, thus limiting the efficient production and industrial application of succinic acid. This article discusses strategies and methods for enhancing microbial cell viability in succinic acid microbial fermentation, focusing on chemical engineering methods based on the supply of specific internal and external compounds, metabolic engineering strategies to improve cell growth performance and environmental adaptability, and fermentation process optimization. Finally, the article provides an outlook on the industrial application of microbial fermentation for succinic acid production.

Key words: succinic acid, Escherichia coli, cell viability, metabolic engineering, biomanufacturing

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