1. Key Laboratory of Precision Nutrition and Food QualityKey Laboratory of Functional DairyThe Ministry of EducationCollege of Food Science and Nutritional EngineeringChina Agricultural University Beijing 100083 P. R. China
2. School of Food and HealthBeijing Technology and Business University Beijing 100048 P. R. China
3. The Research Center for ProbioticsChina Agricultural University Hebei 065201 P. R. China
4. College of Food ScienceFujian Agriculture and Forestry University Fuzhou 350002 P. R. China