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US 5,472,860 AGranted
Method for preparing N-acetylneuraminic acid by N-acetylneuraminic acid lysase at a pH of 10-12
AssigneeMarukin Shoyu Co., Ltd.
InventorsYoji Tsukada, Yasuhiro Ohta
Life of this patent
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Abstract
A method for preparing N-acetylneuraminic acid characterized in reacting N-acetylglucosamine with pyruvic acid at an alkaline pH in the presence of N-acetylneuraminic acid lyase.
Claims10
A method for preparing N-acetylneuraminic acid consisting essentially of:
- reacting N-acetylglucosamine with pyruvic acid at a pH between 10 and 12 in the presence of enzyme consisting essentially of N-acetylneuraminic acid lyase;
- and
- recovering N-acetylneuraminic acid.
Dependencies are inferred from the claim text.