1. Tianhua Institute of Chemical Machinery &
Automation Co., Ltd, Lanzhou, Gansu, 730060;
2. Lanzhou Boyuan Biotechnology Co. LTD, Lanzhou,
Gansu, 730060;
3. Zhongyuan Union Cell and
Gene Engineering Co., Ltd. of Gansu province, Lanzhou, Gansu, 730070;
4. College of Petroleum and Chemical Engineering,
Longdong University, Qingyang, Gansu, 745000