1. Collaborative Innovation Center for Food Production and Safety College of Biological Science and Engineering North Minzu University Yinchuan Ningxia 750021 P. R. China
2. School of Food and Biological Engineering Hefei University of Technology Hefei 230009 P. R. China
3. Ningxia Ruichun Coarse Cereals Co., Ltd. Guyuan Ningxia 756500 P. R. China