C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
195/134.1
C12P 13/22 (2006.01) C07D 209/20 (2006.01) C12N 9/88 (2006.01) C12N 9/90 (2006.01) C12P 13/06 (2006.01)
Patent
CA 1128443
(Abstract) Disclosed is a process for the preparation of L-tryptophan which comprises reacting indole with serine in the presence of tryptophan synthetase or tryptophanase, wherein DL-serine or D-serine is used and a serine ra- cemizing enzyme is made present in the reaction system and reacted with the serine.
350695
Asai Yoshiyuki
Shimada Masao
Soda Kenji
Mitsui Toatsu Chemicals Inc.
Ridout & Maybee Llp
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