微调途径和发酵条件,以探索Pichia pastoris从葡萄糖中生产高水平的d-arabitol
Yuan Dou1, Zhang Yufei2, Hossain M Zabed3
1School of Life Sciences, Guangzhou University, Guangzhou 510006 Guangdong Province, China; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013 Jiangsu, China.
Bioresource technology
|February 21, 2025
概括
这项研究将Pichia pastoris用于d-arabitol (一种有价值的工业化学物质) 的生产. 优化的酵母菌株达到78.1g/L的高标位,证明了其高效生物生产的潜力.
科学领域:
- 生物技术是生物技术.
- 代谢工程是代谢工程.
- 工业微生物学 工业微生物学
背景情况:
- D-arabitol在食品,化学和制药行业具有重要的工业价值.
- 目前使用酵母的d-arabitol生产方法效率低,工业可扩展性差.
- 对于可持续和高效的d-arabitol生物合成,需要强大的微生物底盘.
研究的目的:
- 为了设计Pichia pastoris作为d-arabitol生产的优越宿主.
- 为了克服现有的d-arabitol生物生产技术的局限性.
- 为了提高d-arabitol生物合成的转化效率和工业适应性.
主要方法:
- 系统的代谢工程 Pichia pastoris. 的.
- 在d-arabitol生物合成途径中过度表达关键酶.
- 促进元和基因拷贝数的微调.
- 优化料批发发酵过程.
主要成果:
- 经过工程改造的Pichia pastoris表现出增强的d-arabitol生物合成能力.
- 在生物反应器食批发发酵中达到78.1g/L的最终d-arabitol标位.
- 验证了P. pastoris作为d-arabitol生产的坚固有效的底盘.
结论:
- 皮奇亚牧草可以有效地被设计为高产量的d-arabitol生产.
- 代谢再调节和生物过程优化对于最大化d-arabitol标位至关重要.
- 这项研究为推进可持续的d-arabitol生物生产提供了一个有希望的平台.
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