Preparation of process of l-methionine
AssigneesCj Cheiljedang Corporation, Arkema France
InventorsGeorges Fremy, Patrice Barre, So Young Kim, Sung Kwang Son, Sang Mok Lee
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Abstract
The present invention relates to a method for producing L-methionine using a bio-synthesis process and a specific enzymatic process. More particularly, the present invention relates to a method for producing L-methionine with high yield by enzyme conversion reaction from L-methionine precursor in the presence of methyl mercaptan (CH3SH). The process of the present invention enables selective production of L-methionine which may be used in various fields of industry, such as feed- and food-additives, as raw material for medical supplies, pharmaceutical drugs, and the like.
Claims12
Process for the enzymatic conversion of an L-methionine precursor with methyl mercaptan to obtain L-methionine, wherein the methyl mercaptan partial pressure in the reaction vessel over the reaction medium ranges from 10 kPA to 180 kPA, preferably from 51 kPa to 180 kPa, more preferably from 51 kPa to 160 kPa, still more preferably from about 80 kPa to about 160 kPa, advantageously from about 90 kPa to about 150 kPa, for example the CH3SH partial pressure is about 100 kPa to 150 kPa, at the reaction temperature.
Dependencies are inferred from the claim text.