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:
Oct. 06, 1992
Filed:
Aug. 30, 1991
Takanobu Shibuta, Tokyo, JP;
Yasuyuki Yoshida, Tokyo, JP;
The Calpis Food Industry Co., Ltd., Tokyo, JP;
Abstract
A method for the purification of a bifidobacteria-proliferating substance is provided which comprises adjusting the temperature of soybean whey to 50.degree. to 100.degree. C. and the pH thereof to 6.5 to 10 either by adding an alkaline substance to the whey and heating it or by heating the whey and adding the alkaline substance, removing the formed precipitate, ultrafiltering the resulting liquid phase part to obtain as the permeate an aqueous solution of a bifidobacteria-proliferating substance, and if necessary subjecting the permeate to further purification steps, i.e. active carbon or adsorbing resin treatment, electrodialysis and ion exchange resin treatment. By the step of the alkali substance treatment and heating in this invention, permeate flux in the succeeding ultrafiltration step is remarkably enhanced. Further, a bifidobacteria-proliferating substance having a high quality can effectively be obtained by the present purification method.