为Bifidobacterium longum HSBL001的高细胞密度培养优化中介成分使用响应表面方法
Hao Cheng1, Jiangbin Liu1, Liya Mei1
1Jiang Zhong Pharmaceutical Co. Ltd., Nanchang, China.
MicrobiologyOpen
|July 3, 2025
概括
优化的发酵条件显著增加了Bifidobacterium longum HSBL001的产量. 这一突破支持对肠道健康的高度活性益生菌制剂的工业生产.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 食品科学 食品科学 食品科学
背景情况:
- Bifidobacterium longum对肠道健康至关重要,提供各种益生菌的好处.
- 对于有效的益生菌制剂,B. longum的高密度发酵是必不可少的.
- 优化培养基和发酵条件是最大限度地提高B. longum生物质产量的关键.
研究的目的:
- 为优化Bifidobacterium longum HSBL001.1.的培养基组成
- 为了确定B. longum HSBL001.1.的高密度种植的理想发酵参数.
- 为了提高益生菌制剂的工业应用的生物质产量.
主要方法:
- 采用单因素实验,普莱克特-伯曼设计,最的上升,以及中央复合设计进行优化.
- 作为关键指标,利用了可活细胞数量和600nm (OD600) 的光密度.
- 测试了各种度的酵母提取物,酵母,氨基酸,葡萄糖和其他补充剂.
主要成果:
- 确定了最佳介质成分,包括酵母提取物 (19.5 g/L),酵母 (25.8 g/L) 和葡萄糖 (27.3 g/L).
- 确定最佳条件:初始pH 7.0,5%的注射剂,37°C的化.
- 在震动瓶中达到4.20 × 10^9 CFU/mL的最终可活细胞数量,在3L生物反应器中达到1.17 × 10^10 CFU/mL.
结论:
- 优化的介质和条件显著改善了B. longum HSBL001产量,而不是修改后的MRS介质.
- 这些发现为B. longum HSBL001.1.的工业规模生产提供了坚实的基础.
- 这种优化有助于开发高活性和商业可行的益生菌产品.
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