PROCESS FOR PRODUCING A SOLUTION OF LACTOSE DECOMPOSITION PRODUCT

Title:

PROCESS FOR PRODUCING A SOLUTION OF LACTOSE DECOMPOSITION PRODUCT

Document Type and Number:

WIPO Patent Application WO/1980/001034

Kind Code:

A1

Abstract:

A lactose-containing solution such as a lactose aqueous solution, wherein milk or the like is placed in contact with a (Beta)-galactosidase-containing solution, with a dialysis membrane intervening therebetween to decompose lactose in the solution. Thus, a (Beta)-galactosidase-free solution of the lactose decomposition product is obtained. This enzymatic reaction is conducted at temperatures not higher than the optimal temperature of used enzyme, preferably 0 - 10 C, with the amount of enzyme being 30 - 250 units, preferably 62.5 - 250 units per 1 g of lactose in the lactose-containing solution. The area of the dialysis membrane intervening between the enzyme-containing solution and the substrate-containing solution is preferably selected so that it actually becomes largest with respect to the volume of the enzyme-containing solution used.

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Inventors:

SHIMAMURA S (JP)
HIRAMATSU A (JP)
OGASA K (JP)
MIYAKAWA H (JP)
KUDO T (JP)

Application Number:

PCT/JP1979/000298

Publication Date:

May 29, 1980

Filing Date:

November 21, 1979

Export Citation:

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Assignee:

MORINAGA MILK INDUSTRY CO LTD (JP)
SHIMAMURA S (JP)
HIRAMATSU A (JP)
OGASA K (JP)
MIYAKAWA H (JP)
KUDO T (JP)

International Classes:

A23C7/04; A23C9/12; C12P19/14; (IPC1-7): A23C21/02; A23C9/12; A23C17/02; A23L1/236; C12P1/00

Foreign References:

JPS4995690A	1974-09-11
JPS4868772A	1973-09-19
JPS521089A	1977-01-06
JPS4716663A

Other References: