A microbial composition, the composition comprising live Lactococcus lactis subsp. lactis CCFM1018 cells deposited on Feb. 11, 2018, at the Guangdong Microbial Culture Collection Center, Guangdong Institute of Microbiology, under the GDMCC number 60332, wherein:
- (a) the composition is a fermented food product prepared by fermentation of the Lactococcus lactis subsp. lactis CCFM1018 cells, wherein the fermented food product comprises dairy products, bean products, or fruit and vegetable products, wherein the dairy products comprise milk, sour cream, or cheese;
- and wherein the fruit and the vegetable products comprise cucumber, carrot, beet, celery, or cabbage, or
- (b) the composition is a microbial preparation in which the Lactococcus lactis subsp. lactis CCFM1018 cells are fermented, collected, mixed with a cytoprotective agent, and freeze-dried to obtain a freeze-dried preparation containing live cells of the Lactococcus lactis subsp. lactis CCFM1018.