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通过Actinomyces hyovaginalis分离CCASU-A11-2生物转化维生素D3成为酸
Ahmad M Abbas1,2, Walid F Elkhatib1,3, Mohammad M Aboulwafa1,2
1Department of Microbiology and Immunology, Faculty of Pharmacy, Ain Shams University, African Union Organization St. Abbassia, Cairo, 11566, Egypt.
AMB Express
|July 11, 2023
概括
这项研究优化了使用实验室发酵器中的Actinomyces hyovaginalis将维生素D3生物转化为酸. 该过程通过优化空气,注射剂大小和基质添加时间,实现了酸产量的2.5倍增加.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 生物化学 生物化学
背景情况:
- 维生素D3是一种促激素,转化为卡尔西迪奥尔,然后转化为活性形式卡尔西醇.
- 亚克提诺米塞斯阴道菌 CCASU-A11-2可以将维生素D3转化为酸.
- 优化生物转化过程对于高效的酸生产至关重要.
研究的目的:
- 使用 Actinomyces hyovaginalis 改善维生素 D3 转化为酸盐的生物转化.
- 在实验室发酵器中研究各种培养条件对酸产生的影响.
- 与以前的摇瓶方法相比,为了提高酸的产量.
主要方法:
- 使用了一台14升实验室发酵器,配有特定的发酵介质 (果糖,脱脂大豆,盐和缓冲剂).
- 研究了注射剂大小,动速率,通风速率,初始pH值和基质添加时间的影响.
- 将发酵器中的酸产量与摇瓶实验中获得的结果进行比较.
主要成果:
- 与摇瓶 (12.4μg/100mL) 相比,在发酵器中达到2.5倍的酸产量 (32.8μg/100mL).
- 确定了最佳条件:2%v/v注射剂,200rpm,1vm空气,pH7.8,并在48小时后添加基质.
- 证明了空气,注射剂大小,基质添加时间和pH对生物转化效率的显著影响.
结论:
- 实验室发酵器显著增强了维生素D3到酸的生物转化2.5倍.
- 优化这种生物转换的关键因素包括空气,注射剂大小,基质添加时间和pH控制.
- 这些发现对于成功扩大酸生物转化过程至关重要.
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