用埃及Bacillus subtilis菌株对禽类废弃物进行优化和表征研究,以生产素,使用新的埃及Bacillus subtilis菌株
Hajar Saeed1, Anthony Ragaey1, Ziad Samy1
1Biotechnology Program, New Programs Administration, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, P.O. Box 68, Cairo, 11241, Egypt.
AMB Express
|January 13, 2025
概括
用Bacillus subtilis分离物P6的方法将家禽废物转化为具有成本效益的子. 这种可持续的替代品提供了卓越的氨基酸特征,并显示了生物技术应用的潜力.
科学领域:
- 生物技术是生物技术.
- 废弃物价值化 废弃物价值化 废弃物价值化
- 微生物发酵 微生物发酵
背景情况:
- 禽类废物对处置来说是一个很大的挑战.
- 从废物中开发可持续且具有成本效益的生物制品至关重要.
- 子是微生物介质中有价值的成分,但商业来源可能昂贵.
研究的目的:
- 通过生产具有成本效益和可持续的子来利用家禽废物.
- 为了隔离和表征一个强大的蛋白酶生产微生物,用于培生产.
- 为了优化的生产,并评估其生化和细胞毒性质.
主要方法:
- 使用16S rRNA基因测序,分离和识别一种产生蛋白酶的细菌菌株 (P6).
- 使用Plackett-Burman设计选用于子生产的重要因素.
- 使用BOX-Behnken设计优化子生产.
- 佩特性的表征,包括氨基酸概况,蛋白质活性和细胞毒性.
- 评估顿作为Bacillus subtilis种植的源.
主要成果:
- 鉴定了Bacillus subtilis P6分离物,并优化了生产,产生了高蛋白酶活性 (2850 U/mL) 和总氨基酸 (580 mg/mL).
- 产生的突与商业突相比,呈现出优越的氨基酸特征,含有显著更高的必需氨基酸含量.
- 蛋白质分解活性的最佳条件是pH 8和50-60°C. 确定了运动参数 (Km = 0.5 mg/mL,Vmax = 174.08 U/mL) 的时间.
- 在度≤1 mg/mL时,顿显示出最小的细胞毒性,细胞活力>94%对人类皮肤纤维细胞.
- 佩普被证明是有效的源,用于培养Bacillus subtilis,度为0.5%.
结论:
- 通过使用 Bacillus subtilis P6.,可以成功地将家禽废物提升为高质量,具有成本效益的子.
- 产生的是一种可持续的替代商业,具有增强的营养价值.
- 这一过程有助于减少废物,并支持可持续的生物技术应用.
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