Its biological properties werestudied.Forty four strains of lactic acid bacteria,including two strains ofStreptococcus lactis and Ot1e strain of streptococcus cremoris Leuconostoc Lactis,wereisolated.

• 从乳样中共分出44株乳酸菌，其中乳链球菌2株，占分离总数的4．4%25，乳脂链球菌1株，占分离总数的2．3%25。