8Masaharu M,Satomi K.Process for production of L-Aspartic acid:US,6150142[P].2000211221.
9Masaharu M,Shinzo Y,Satomi K.Methods for producing L-Aspartic acid:US,6821760[P].2004211223.
10Xu Hong,Wei Ping,Zhou Hua,et al.Efficient production of L-phenylalanine catalyzed by a coupled enzymatic system of transaminase and aspartase[J].Enzyme and Microbial Technology,2003,33:537-543.