کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2433870 | 1553669 | 2016 | 7 صفحه PDF | دانلود رایگان |
Streptococcus thermophilus SDMCC18 contains a novel bi-functional glutathione synthetase gene gshF, and it can produce glutathione (GSH). In the present study, we demonstrated that the produced GSH by S. thermophilus SDMCC18 could protect cells against acid challenge and be secreted into the medium. Moreover, using a gshF-defective mutant strain as the control, we found that the GSH conferred a protective role against acid stress to Lactobacillus delbrueckii subsp. bulgaricus ATCC11842. In addition, L. bulgaricus ATCC11842 could import the exogenous GSH into the cytoplasm, leading to an improved growth of strain ATCC11842. Taken together, our study reported a novel proto-cooperation relationship between S. thermophilus and L. bulgaricus in yoghurt fermentation.
Journal: International Dairy Journal - Volume 61, October 2016, Pages 22–28