1. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu, P.R. China;
2. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu, P.R. China;
3. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi’an China;
4. Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan, P.R. China