Comparison of the proliferation fermentation difference of Lactobacillus acidophilus between cow's & goat's milk and its survival rate in fermented milk during chill storage

The health and nutrition benefits of probiotic products depend on the viable counts of the probiotics.Lactobacillus acidophilus was used as culture,the difference of viable counts between cow fermented milk and goat fermented milk was analyzed as well as the changes of viable counts during chill storage.The proliferation fermentation difference of Lactobacillus acidophilus between cow's goat's milk and its survival rate in fermented milk during chill storage were discussed.The results showed that Lactobacillus acidophilus grew best in goat's milk,the colony form counts in goat fermented milk were 1.66×1010CFU/mL,greater than 3.02×109CFU/mL in cow fermented milk.The concentration of Lactobacillus acidophilus maintained at a high level during 21 day's of storage(p0.05).Between 21d and 26d of storage,here were about 84.15%,84.39% surviral rate in the counts respectively.It indicated that goat's milk showed better proliferation fermentation performance,both goat and cow fermented milk had consistent variation trend of viable counts during chill storage.