1. College of Chemical and Pharmaceutical Sciences & Central Laboratory, Qingdao Agricultural University, Qingdao 266109, P. R. China
2. Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
3. School of Basic Medical Sciences, Qingdao University, 308 Ningxia Road, Qingdao, Shandong, 266021, China