工程酵母用于从单一甲醇中生产高水平的β-法纳
Jingjing Li1, Jiaoqi Gao2, Min Ye1
1Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
Metabolic engineering
|August 24, 2024
概括
工程酵母有效地从甲醇中产生β-法素,甲醇是一种碳中性原料. 这一进步为从二氧化碳中生产有价值的化学品和生物燃料提供了可持续的途径.
科学领域:
- 合成生物学 合成生物学
- 代谢工程是代谢工程.
- 生物技术是生物技术.
背景情况:
- 通过液体阳光路线从CO2中提取的甲醇,为碳中和提供可持续的单碳原料.
- β-Farnesene是一种有价值的化合物,用于聚合物,表面活性剂,滑剂,并作为喷气式燃料的替代品.
- 开发高效的微生物细胞工厂,从甲醇中生产β-法纳是至关重要的.
研究的目的:
- 用甲醇设计甲基转化酵母Ogataea polymorpha,以高效地生产β-farnesene生物制造.
- 增强前体 (乙-CoA) 和辅因子 (NADPH) 的供应,以增加β-法纳的产量.
- 为了优化美瓦酸路径,最大限度地增加基类积累.
主要方法:
- 对Ogataea polymorpha进行基因工程,以增强代谢途径.
- 在生物反应器中进行料批发发酵,以优化生产条件.
- 代谢流量分析以了解前体和辅因子动态.
主要成果:
- 与野生类型菌株相比,人工酵母的β-法内产量增加了1.3倍.
- 进一步的优化导致β-法内积累增加了7倍.
- 从一碳原料中获得14.7g/L (46mg/g甲醇) 的最高报告的基化物产量.
结论:
- 可以有效地改造Ogataea polymorpha,从甲醇中产生高水平的β-法纳.
- 这项研究强调了O. polymorpha作为从可持续原料中生产类的底盘的潜力.
- 开发的生物转化工艺为实现碳中和化学品和燃料生产提供了一个有前途的途径.
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