6Dharmendra Kumar, James Gomes. Methionine production by fermentation. BiotechnologyAdvances, 2005(23): 41-61.
7James Gomes, Dharmendra Kumar. Production of 1-methionine by submerged fermentation: A review. Enzyme and Microbial Technology, 2005, 3: 3-18.
8Mondal S, Das YB, Chatterjee SP. Methionine production by microorganisms. Folia Microbiol, 1996, 41, 72-465.
9Tosaka O, Takinami K. Bioteclmology of amino acid production. Progress in industrial microbiology, 1986(24): 72-152.
10Chattopadhyay MK, Sengupta D, Sengupta S. Fermentative production of methionine by 5-bromouracil rosistant mutants of Escherichia coli K- 12. Med SciRes, 1995(23): 775.