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:
Dec. 14, 1993
Filed:
Jan. 14, 1992
Masaharu Shimatani, Sayama, JP;
Yukio Uchida, Tokorozawa, JP;
Ichirou Matsuno, Kawagoe, JP;
Makoto Oyoshi, Sayama, JP;
Yumiko Ishiyama, Sayama, JP;
Snow Brand Milk Products Co., Ltd., Hokkaido, JP;
Abstract
The present invention relates to a process for manufacturing a composition containing sialic acids. The process of the present invention comprises the steps of: (a) adjusting cheese whey or rennet whey to a pH of 2-5; (b) contacting the whey with a cation exchanger, to produce an exchanger-passed solution; (c) adjusting the pH of the exchanger-passed solution to a pH of 4 or lower; and then (d) concentrating and/or desalting the exchanger-passed solution. According to the present invention, it is possible to produce a composition having a high sialic acids content at a low cost and in a simple and easy manner on an industrial scale. The high sialic acids content composition thus produced can be utilized as food materials or medical materials and therefore is very useful, industrially.