Shanghai Yaxin Biotechnology Co., Ltd. is a biotech company founded in 2008 that focuses on the research and the production of recombinant proteins. YaxinBio already offers three types of Animal Origin Free recombinant proteins: recombinant Carboxypeptidase B, recombinant Trypsin and recombinant Lipase A. Both recombinant Carboxypeptidase B and recombinant Trypsin have no trace of other enzyme activities or enzyme inhibitors. Our Animal Origin Free products have been successfully used in the production process of recombinant insulin by several companies. Recombinant Trypsin can also be used in the process of cell culture. Shanghai Yaxin Biotechnology Co., Ltd., located in Shanghai Juke Biotech Park, is ISO 9001 registered company since 2009.