The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1993
Filed:
Aug. 22, 1991
Mamoru Koketsu, Gifu, JP;
Hiroshi Kawanami, Yokkaichi, JP;
Lekh Raj Juneja, Yokkaichi, JP;
Masaru Fujiki, Yokkaichi, JP;
Hajime Hatta, Yokkaichi, JP;
Katsuya Nishimoto, Yokkaichi, JP;
Mujo Kim, Yokkaichi, JP;
Nagataka Yamazaki, Yokkaichi, JP;
Taiyo Kagaku Co., Ltd., Mie, JP;
Abstract
The present invention is directed to a method for producing crude sialic acid, comprising hydrolysis of a delipidated egg yolk and a method for producing high purity sialic acid, which comprises desalting a solution containing sialic acid obtainable by hydrolyzing a delipidated egg yolk, adsorbing sialic acid to an anion exchange resin and then eluting said sialic acid. The present invention makes it possible to produce and purify sialic acid from delipidated egg yolk on an industrial scale.