1. Faculty of Life Science and Food Engineering, HuaiYin Institute of Technology, Huaian 223003, P. R. China
2. Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation, Huaiyin Institute of Technology, Huaian 223003, P. R. China
3. The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science Soochow University, 215123, Suzhou, P.R. China
4. Huai'an Municipal Center for Disease Control and Prevention, Huaian, China