ZHOU Qing-Feng1**, CHEN Xiang-Wei1, ZHU Xiao-Qin1, JIANG Shu-Na1, LUO Xue-Gang2
1. College of Biology and Food Engineering,Shangqiu Normal University,Shangqiu 476000,China; 2. College of Biological Engineering,Tianjin University of Science and Technology,Tianjin 300222,China