优化发酵参数以改善Bacillus licheniformis F1对纳米颗粒的生物合成及其全面应用
Zhangqian Wang1,2, Nana Li1,2, Xin Zhou3
1National R&D Center for Se-rich Agricultural Products Processing, Wuhan, 430028, China.
BMC microbiology
|July 20, 2024
概括
这项研究表明,使用益生菌Bacillus licheniformis F1和农业副产品,生产稳定的纳米粒子 (SeNPs) 的成本效益高. 优化的发酵条件显著降低了成本,为SeNPs的工业规模微生物合成铺平了道路.
科学领域:
- 生物技术是生物技术.
- 纳米技术纳米技术
- 微生物合成 微生物合成
背景情况:
- 纳米粒子 (SeNPs) 以其低毒性,高活性和稳定性而闻名.
- 细菌菌 (B. licheniformis) 是一种具有多种应用的益生菌,在SeNPs合成方面表现有前途.
- 以益生菌为媒介的SeNP合成是工业规模生产的关键领域,需要具有成本效益的方法.
研究的目的:
- 使用益生菌B. licheniformis F1.优化SeNPs的产生.
- 从农业副产品中确定具有成本效益的培养基成分,用于SeNPs合成.
- 通过微生物发酵评估工业规模SeNPs生产的可行性.
主要方法:
- 使用B. licheniformis F1用于SeNPs的生物合成.
- 采用单因素实验和响应表面方法 (RSM) 来优化发酵参数.
- 评估了SeNP的形态,稳定性和自由基清除活动.
- 在5L发酵器中进行了试点规模的验证.
主要成果:
- B. licheniformis F1合成了稳定的球形SeNP (110-170nm),具有显著的自由基清除能力.
- 优化条件包括2%的种子液体注射剂,37°C,180rpm,用玉米粉 (11.18g/L),大豆粉 (10.34g/L) 和NaCl (10.68g/L).
- 在优化条件下,从5mmol/L的烯酸中实现了近100%的SeNPs合成.
- 试点规模的发酵证明了生产成本的降低和发酵时间的缩短.
结论:
- 通过使用益生菌B. licheniformis F1.1成功实现了SeNP的高效和成本效益的生产.
- 优化的微生物合成方法为工业规模的SeNP生产提供了可行的途径.
- 建议进一步探索B. licheniformis F1的应用,以推进SeNPs的工业化.
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