1. Beijing Higher Institution Engineering Research Center of Animal Product, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian
District, Beijing 100083, P. R. China
2. College of Life Science, Yantai University, No. 30 Qingquan Road, Laishan District, Yantai 264005, P. R. China