研究麦作为基质,以获得含有Lactobacillus acidophilus的功能成分
Noelia E Silva1,2, Silvia K Flores1,2, Marina F de Escalada Pla3,4
1Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Industrias, Intendente Güiraldes 2160, 1428, Ciudad Autónoma de Buenos Aires, Argentina.
Bioprocess and biosystems engineering
|October 30, 2025
概括
研究人员使用在麦中固定化的Lactobacillus acidophilus优化了一种功能成分. 这种可持续的过程提高了益生菌的稳定性和营养价值,减少了初始的酸含量.
科学领域:
- 食品科学与技术 食品科学与技术
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 使用益生菌开发功能成分 (FI) 需要优化生产和稳定性.
- 麦因其营养特性而具有作为益生菌固定化矩阵的潜力.
研究的目的:
- 设计和优化功能成分 (FI) 的生产,使用在麦中固定化的Lactobacillus acidophilus.
- 为了最大限度地提高益生菌细胞数量,生长,FI产量,以及对模拟胃状况的抵抗力.
- 在过程中尽量减少营养损失和pH值变化.
主要方法:
- 使用响应表面方法来分析化时间和水分水平的影响.
- 确定了优化条件,以最大限度地提高关键参数并最大限度地减少损失.
- 在最佳条件下研究了L. acidophilus的生长动力学.
- 这个过程被扩大了一个数量级.
主要成果:
- 确定了最佳条件:60小时的化时间和13毫升的水/g的麦.
- L. acidophilus的最大特异性生长率 (μmax) 为1.1 ± 0.1小时-1.1.
- 36小时发酵后的扩大显示细胞生长和FI产量减少,但可定位酸度增加.
- 发酵减少了麦中的初始氧化酸含量,并产生了乳酸和酸.
结论:
- 优化的工艺产生了稳定的功能成分,增强了益生菌耐药性和改善了营养状况.
- 麦作为L. acidophilus固定和稳定的一种有效和可持续的矩阵.
- 发酵过程提供了一种可持续的方法,改善了麦的营养方面.
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