Title:
PREPARATION OF PEPTIDE MIXTURE HAVING HIGH LEUCINE CONTENT
Document Type and Number:
Japanese Patent JPH01160457
Kind Code:
A
Abstract:
PURPOSE:To efficiently obtain the subject mixture containing a fixed quantity of leucine, effective for improving functions of muscular motion, especially of sports, etc., treating a protein raw material with a specific enzyme and concentrating the treated matter, by using a hydrophobic reverse osmosis membrane. CONSTITUTION:An aqueous solution of protein (preferably milk casein) is treated with an enzyme to specifically hydrolyze leucine residue at the N-end of peptide and the treated matter is concentrated by using a hydrophobic reverse osmosis membrane by >= twice to give the aimed mixture having >=20% leucine content from the permeated solution at the permeation side. The aqueous solution of protein is preferably reacted at pH6-7 at the ratio of the enzyme/substrate of 1/40-1/60 at 35-45 deg.C for 2-3 hours.
Inventors:
DOSEMARI SHUNICHI
TANIMOTO MORIMASA
TANIMOTO MORIMASA
Application Number:
JP31631687A
Publication Date:
June 23, 1989
Filing Date:
December 16, 1987
Export Citation:
Assignee:
SNOW BRAND MILK PRODUCTS CO LTD
International Classes:
A23J3/00; A23J3/08; A23J3/10; A23J3/34; A23L1/305; C12P13/06; C12P21/06; (IPC1-7): A23J3/00; A23L1/305; C12P13/06; C12P21/06
Attorney, Agent or Firm:
Kiyoya Fujino (1 outside)
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