Process for preparing L-methionine
AssigneeKanegafuchi Kagaku Kogyo Kabushiki Kaisha
InventorsHideaki Yamada, Satomi Takahashi, Kazushige Sumino, Hirotaka Fukumitsu, Koji Yoneda
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Abstract
A process for preparing L-methionine by subjecting DL- or L-N-carbamoylmethionine to the action of a cultured broth, cells or treated cells of microorganisms having a capability in asymmetrically hydrolyzing the carbamoyl group of N-carbamoylmethionine. The process is suited for large-scale economical manufacturing of L-methionine.
Claims8
A process for preparing L-methionine which comprises subjecting DL- or L-N-carbamoylmethionine to the action of an enzyme which is in the form of a cultured broth containing a microorganism or separated cells of said microorganism in an aqueous medium, said enzyme being capable of hydrolyzing the carbamoyl group of L-N-carbamoylmethionine so as to substantially produce only L-methionine, and recovering said L-methionine from the medium.
Dependencies are inferred from the claim text.