WANG Cun1, WU Kai-Bi2, HUANG Tian-Kui1, WANG Feng-Qin1, RAO Shu-Rong1, CHEN Qing1, ZOU Xiao-Chuan1**
1. Department of Biological & Chemical Engineering, Chongqing University of Education, Chongqing 400067, China;
2. Chongqing Urban Construction Technical School, Chongqing 402247, China