Protective mechanism of milk fat globule membrane proteins on Lactobacillus acidophilus CICC 6074 under acid stress based on proteomic analysis.
Protective mechanism of milk fat globule membrane proteins on Lactobacillus acidophilus CICC 6074 under acid stress based on proteomic analysis.
复制标题
DOI：
10.1016/j.foodchem.2023.137297
复制
发表时间：
2023-08
期刊：
影响因子：
8.8
通讯作者：
Tao Zhang;Yujie Yang;Xiaoqun Zeng;Zhen Wu;D. Pan;Haibo Luo;Mingxuan Tao;Yuxing Guo
中科院分区：
文献类型：
--
作者：
Tao Zhang;Yujie Yang;Xiaoqun Zeng;Zhen Wu;D. Pan;Haibo Luo;Mingxuan Tao;Yuxing Guo
The prerequisite for lactic acid bacteria to perform their probiotic function is that they could survive the acid-stressed environment of production and application. In this experiment, the protective mechanism of milk fat globule membrane (MFGM) proteins on lactic acid bacteria under acid stress was investigated. Scanning electron microscopy and fluorescence probe were used to analyze the condition of the acid-treated bacteria, which showed that MFGM proteins could enhance the survival ability of LactobacillusacidophilusCICC 6074 under acid stress by maintaining cell morphology, elevating intracellular pH and H+-ATPase activity. Furthermore, Tandem Mass Tags (TMT) proteomic analysis revealed that MFGM protein could exert protective effects onL. acidophilusCICC 6074 by regulating amino acid metabolism, ATPase activity, peptidoglycan synthesis, gene repair and heritage, etc. The results will provide a new approach for the protection and development of functional lactic acid bacteria.
