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Patent Searching and Data


Title:
PRODUCTION OF HIGH-PURITY LACTULOSE SYRUP
Document Type and Number:
Japanese Patent JPH02167292
Kind Code:
A
Abstract:

PURPOSE: To inexpensively obtain the title syrup useful as a multiplying agent for Lactobacillus bifidus by subjecting lactose to iosmerization reaction with an alkali and purifying a lactulose-containing reaction solution with a strongly acidic cation exchange resin having fixed degree of crosslinking.

CONSTITUTION: First, lactose, preferably 40-60wt.% aqueous solution of lactose is subjected to alkali isomerization reaction by a method of adding 1-30wt.% based on lactose of caustic soda and heating ≥60°C and the isomerization reaction is stopped by a method of passing the reaction solution through a cation exchange resin to remove an alkali. Then a lactulose-containing reaction solution obtained by the procedure is purified by a strongly acidic cation exchange resin (preferably resin of alkaline earth metal type prepared by introducing SO to styrene-divinylbenzene copolymer as carrier) having fixed degree of crosslinking for chromatography to give the aimed syrup.


Inventors:
SHUKKE SAKANORI
TAKAHASHI TAKESHI
IKEUCHI YOSHIHIRO
Application Number:
JP22135489A
Publication Date:
June 27, 1990
Filing Date:
August 28, 1989
Export Citation:
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Assignee:
SNOW BRAND MILK PROD CO LTD
International Classes:
C07H1/06; C07H3/04; (IPC1-7): C07H1/06; C07H3/04