1. College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya’an 625014, P. R. China
2. College of Information Engineering, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya’an 625014, P. R. China
3. Department of Chemical Engineering and Food Science, Hubei University of Arts and Science, 296 Longzhong Road, Xiangyang 441053, P. R. China