BIOPROTECTIVE STARTERS OBTAINED FROM NATIVE MILKS : USE OF SAID STARTERS FOR PREPARING LOCALLY-PRODUCED STARTERS AND FOR PURIFYING RAW MILK

摘要

The invention relates to a biological protection yeast, which contains more than 99.00% relative abundance of Lactococcus lactis, and is obtained by a preparation method including the steps of spontaneous fermentation of mammalian natural milk between 20 ℃ and 30 ℃, preferably at 25 ℃, The fermentation stop pH value is between 4.8 and 5.8, preferably 5.0.