生物技术通报 ›› 2024, Vol. 40 ›› Issue (1): 72-85.doi: 10.13560/j.cnki.biotech.bull.1985.2023-0657

• 综述与专论 • 上一篇    下一篇

解脂耶氏酵母细胞工厂生产多不饱和脂肪酸的研究进展

何思成(), 张紫瑗, 韩雨晴, 苗琳, 张翠英, 于爱群()   

  1. 天津科技大学生物工程学院 省部共建食品营养与安全国家重点实验室 工业发酵微生物教育部重点实验室 天津市工业微生物重点实验室,天津 300457
  • 收稿日期:2023-07-11 出版日期:2024-01-26 发布日期:2024-02-06
  • 通讯作者: 于爱群,男,博士,教授,研究方向:发酵工程、微生物学、合成生物学;E-mail: yuaiqun@tust.edu.cn
  • 作者简介:何思成,男,研究方向:生物工程;E-mail: hesicheng2002@tust.edu.cn
  • 基金资助:
    天津市自然科学基金项目(22JCYBJC00170)

Research Progress in the Production of Polyunsaturated Fatty Acids by Yarrowia lipolytica Cell Factories

HE Si-cheng(), ZHANG Zi-yuan, HAN Yu-qing, MIAO Lin, ZHANG Cui-ying, YU Ai-qun()   

  1. College of Biotechnology, Tianjin University of Science and Technology, State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, Tianjin 300457
  • Received:2023-07-11 Published:2024-01-26 Online:2024-02-06

摘要:

多不饱和脂肪酸属直链脂肪酸,是机体生物膜的关键结构组分,它可以调控糖脂代谢及激素代谢,具有促进发育、提高免疫力和预防疾病等多种益生功能,对机体健康具有十分重要的作用。因此,多不饱和脂肪酸在食品、医药和饲料等多个领域均表现出重要的应用价值和广阔的开发前景,市场需求持续上升。与传统的海洋生物提取法相比,微生物合成法具有生产周期短、工艺简单、对环境友好等优势,近年来利用微生物细胞工厂生产多不饱和脂肪酸等微生物油脂逐渐成为科学界和工业界的研究热点和发展趋势。解脂耶氏酵母作为一种非常规产油酵母,因其具备高产油脂和脂肪酸的天然能力,因此成为了代谢工程改造微生物生产多不饱和脂肪酸的首选底盘细胞之一。本文首先介绍了多不饱和脂肪酸的来源及其天然合成途径;然后总结归纳了当前利用代谢工程策略改造解脂耶氏酵母生产多不饱和脂肪酸的研究现状;最后对利用解脂耶氏酵母细胞工厂生产多不饱和脂肪酸存在的主要瓶颈问题和未来发展趋势进行了探讨,期望为未来高效合成多不饱和脂肪酸微生物细胞工厂的构建提供理论支持与思路。

关键词: 多不饱和脂肪酸, 微生物细胞工厂, 解脂耶氏酵母, 产油酵母, 代谢工程

Abstract:

Polyunsaturated fatty acids(PUFA)stand as linear olefinic fatty acids that assume a pivotal role as structural constituents within biofilms in living organisms. They wield the power to govern glucose, lipid, and hormone metabolism, yielding an array of physiological functions. Their capabilities encompass fostering developmental progress, bolstering immunity, preventing disease, and the essential maintenance of overall bodily well-being. Consequently, PUFA hold significant intrinsic worth and expansive developmental potential across diverse fields such as functional food, medicine, and animal feed. In contrast to traditional marine biological extraction techniques, microbial synthesis approaches offer distinct advantages, encompassing shortened production cycles, streamlined procedures, and environmental compatibility. In recent years, the utilization of microbial cell factories for generating PUFA and other microbial oils has emerged as a focal point within both scientific and industrial communities. A standout player in this arena is Yarrowia lipolytica, an unconventional oleaginous yeast that stands out due to its inherent high-yield lipid and fatty acid production capacity. As substantiated by the publication of Y. lipolytica's complete genome sequence and the rapid advancements in gene expression vectors, genetic transformation methods, synthetic biology components, and gene editing technologies, the domain of metabolic engineering focused on Y. lipolytica as a chassis cell for microbial production is undergoing gradual expansion. This article commences by meticulously reviewing the origins and intrinsic pathways that underpin the natural synthesis of PUFA. It subsequently encapsulates the contemporary landscape of research, pinpointing metabolic engineering strategies applied to reconfigure Y. lipolytica into a PUFA producer. It further presents an in-depth examination of the central hurdles associated with the deployment of the engineered Y. lipolytica strains for PUFA production. Culminating with foresight, the article sketches out the overarching developmental trends in harnessing Y. lipolytica cell factories for large-scale industrial PUFA production, aiming to provide theoretical support and ideas for establishing the microbial cell factories in efficiently synthesizing PUFA.

Key words: polyunsaturated fatty acid, microbial cell factory, Yarrowia lipolytica, oleaginous yeast, metabolic engineering