代谢调节者的影响阿斯塔山丁合成由Xanthophyllomyces dendrorhous和转录组分析
Dawei Zhou1, Lixin Yang1, Fang Guo1
1State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China.
Journal of agricultural and food chemistry
|January 29, 2026
概括
这项研究利用代谢调节剂优化了Xanthophyllomyces dendrouhous*中的阿斯塔桑生产. 研究人员获得了这种天然抗氧化剂的高产量,为工业应用铺平了道路.
科学领域:
- 生物技术是生物技术.
- 微生物生产 微生物生产
- 自然产品 自然产品
背景情况:
- 消费者对天然抗氧化剂如阿斯塔克桑丁的需求正在增加.
- 由于Xanthophyllomyces dendrouhous*的生产水平较低,阿斯塔桑的工业应用受到限制.
研究的目的:
- 为了研究代谢调节剂对*Xanthophyllomyces dendrouhous* LX6.6中的阿斯丁合成的影响.
- 为了提高工业可行性,增强阿斯塔克桑的生产.
主要方法:
- 对代谢调节者的系统检查 (金属离子,表面活性剂,植物油).
- 转录组分析以确定参与阿斯塔克桑和脂质代谢的关键基因.
- 脂组学分析以了解细胞膜动态.
主要成果:
- 鉴定了调节阿斯丁合成的关键基因 (*crtYB*, *crtI*, *adhp*, *acat*, *fadD*, *pla2g7*).
- 证明Tween 80和玉米油调节细胞膜流动性,影响阿斯塔克桑的产生.
- 使用小麦草水解剂,达到714.7 mg/L的最大阿斯塔山丁产量,含量为18 mg/g.
结论:
- 代谢调节者显著增强了Xanthophyllomyces dendrouhous*中的阿斯塔山丁合成.
- 优化条件和基质利用为工业阿斯塔丁生产提供了可行的途径.
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