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. 01, 1998
Filed:
Apr. 10, 1997
Applicant:
Inventors:
Shuichi Yanahira, Tsurugashima, JP;
Kiyoshi Tatsumi, Iruma, JP;
Assignee:
Snow Brand Milk Products Co., Ltd., Hokkaido, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ;
U.S. Cl.
CPC ...
536 185 ; 536 172 ; 536 179 ; 536124 ; 536127 ;
Abstract
A method of preparing a composition containing a high amount of Ganglioside which comprises the steps of: (1) adding ethanol to a material containing Ganglioside so as to have a concentration of ethanol of 30 to 70 volume % and recovering the precipitated fraction containing Ganglioside; (2) adding ethanol to the recovered fraction containing Ganglioside so as to have a concentration of ethanol of 70 to 90 volume % and removing the precipitated proteins; and, (3) treating the fraction containing Ganglioside from which the proteins have been removed, with a membrane.