改善前体供应并优化发酵过程,以在Yarrowia Lipolytica中生产高水平的多可沙氨酸
Fei Du1,2, Yiwen Hang2, Feng Zhang2
1State Key Laboratory of Microbial Technology, Nanjing Normal University, Nanjing 210023, People's Republic of China.
Journal of agricultural and food chemistry
|April 16, 2025
概括
这项研究设计了Yarrowia lipolytica以产生多科萨氨酸 (DPA),实现了创纪录的产量. 这种微生物生产为传统的DPA提取方法提供了一个可持续的替代方案.
科学领域:
- 生物技术是生物技术.
- 代谢工程是代谢工程.
- 合成生物学 合成生物学
背景情况:
- 多可萨氨酸 (DPA) 具有重要的生理功能,使其在医药和健康产品中得到广泛应用.
- 传统的从海油中提取DPA面临着局限性,使微生物生产成为一个有希望的替代品.
研究的目的:
- 使用代谢工程开发一家高效的微生物细胞工厂,用于生产多可萨氨酸 (DPA).
- 通过路径工程和辅因子可用性优化,增强Yarrowia lipolytica中的DPA生物合成.
主要方法:
- 在Yarrowia lipolytica中建立了DPA生物合成途径.
- 改进了酸盐代谢,并引入了正交的马洛尼尔-CoA合成途径,以增加前体的可用性.
- 过度表达的葡萄糖-6-酸脱酶 (G6PDH) 和酶 (ME) 来促进NADPH供应.
- 优化发酵条件,提高DPA的产量.
主要成果:
- 实现了最高报告的DPA含量为40.0%的工程年 Y. 脂质过敏症 (lipolytica) 是一种
- 在5L生物反应器中达到13.0g/L的DPA产量.
- 证明了成功建造一个微生物细胞工厂,用于高水平脂肪酸生物合成.
结论:
- 工程师Y.Y.的设计 lipolytica菌株代表了DPA生产的高效微生物工厂.
- 这项研究提供了一个强大的战略,用于构建微生物细胞工厂,用于宝贵的脂肪酸生物合成.
- 开发的方法为DPA生产提供了一个可持续和可扩展的替代方案.
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