| abstract |
The present invention relates to a method for preparing an antimicrobial compound strain from kefir, which comprises the following steps: step 1, providing and optionally filtering kefir or its whey; step 2, introducing fermentable kefir into kefir or its whey Sugar, wherein the amount of fermentable sugar is at least a saturated amount based on the weight of kefir or its whey, and makes the curds converge on the top, thereby forming a pre-fermented composition; Step 3, ferment the pre-fermented composition until it is on the top A microbial film capable of growth is formed and a whey liquid is formed underneath, and the whey liquid exhibits antimicrobial properties and has a pH of 3.0, during fermentation, kefir or kefir whey or fermentable sugars may be further added. The antimicrobial composition prepared by the method of the present invention using natural substances can be widely used in industrial fields including personal care products, food applications, medicine and health care. |