使用Yarrowia lipolytica增强了异布和异酸的生产
Ayumi Koshiba1, Mariko Nakano1, Yuuki Hirata1
1Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, Kobe, Hyogo, Japan.
Biotechnology progress
|July 26, 2024
概括
这项研究表明,Yarrowia lipolytica可以产生有价值的乙酸,如异布酸和异酸. 优化酒精乙转移酶 (ATF1) 和乙-CoA供应显著提高了工业应用的生产产量.
科学领域:
- 生物技术是生物技术.
- 合成生物学 合成生物学
- 工业微生物学 工业微生物学
背景情况:
- 短链乙,如异布酸和异酸,是工业上重要的化学物质,用于调味品,香料,溶剂和生物燃料.
- Yarrowia lipolytica是一种强大的酵母平台,具有微生物生产有价值化合物的潜力.
研究的目的:
- 为了设计Yarrowia lipolytica用于乙酸的生物合成.
- 通过选酒精乙转移酶和增强代谢通路来优化产量.
主要方法:
- 在Yarrowia lipolytica中选酒精乙醇转移酶 (AATs),以获得高效的生物合成.
- 对Y. lipolytica进行基因工程,以增加ATF1.1等关键酶的表达.
- 优化培养条件和前体 (乙-CoA) 供应,以提高位.
- 用各种酒精进行料批发发酵,以产生一系列的酸.
主要成果:
- 表达Saccharomyces cerevisiae ATF1的Y. lipolytica菌株产生了251 mg/L的异布酸盐和613 mg/L的异酸盐.
- 增强的ATF1表达和优化的乙-CoA供应导致异氨基酸产量的显著增加,达到3404 mg/L.
- 通过用不同的酒精补充培养基来成功地生物合成各种酸.
结论:
- 雅罗维亚 (Yarrowia lipolytica) 是工业上相关的酸的生物合成的多功能宿主.
- 代谢工程策略,包括酶选和途径优化,可以实现目标的高度生产.
- 这项工作表明了Y. lipolytica在可持续和高效的酸的工业生产方面的潜力.
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