利用Bacillus velezensis进行增强的蛋白酶生物合成:优化,净化和动力分析
Saied N Fergany1, Salem S Salem2, Mohamed A Abdel-Naby3
1Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
BMC microbiology
|March 1, 2026
概括
这项研究优化了Bacillus velezensis AZH3S蛋白酶生产的条件,实现了2.8倍的增加. 增强的生物处理产生了一种高度活跃的微生物蛋白酶,具有显著的工业潜力.
科学领域:
- 生物技术是生物技术.
- 微生物学 微生物学
- 酵素工程是什么意思 酵素工程
背景情况:
- 微生物蛋白酶是重要的工业生物催化剂.
- 优化他们的生产是一个重大挑战.
研究的目的:
- 隔离和描述一个高产量的蛋白酶产生细菌.
- 系统地优化生产参数,以提高蛋白酶产量.
主要方法:
- 选了来自环境来源的124种细菌分离物,识别了Bacillus velezensis AZH3S.
- 使用响应表面方法优化培养介质,碳/来源和发酵参数.
- 净化了酶,并描述了它的动力性质.
主要成果:
- 细菌 velezensis AZH3S被确定为一个强大的蛋白酶生产者.
- 在优化条件下,蛋白酶活性达到1160.3 U/mL,提高了2.80倍.
- 纯化的酶 (大约. 20 kDa) 显示出高的基质亲和力 (Km = 0.207 mM).
结论:
- 开发了一种强大的生物工艺,用于工业规模的蛋白酶生产.
- 优化的微生物蛋白酶具有显著的生物技术潜力.
- 这项工作促进了工业应用的酶生产.
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