IMPROVEMENT IN QUALITY OF PROANTHOCYANIDIN AND PRODUCTION OF PROANTHOCYANIDIN IMPROVED IN QUALITY

Title:

IMPROVEMENT IN QUALITY OF PROANTHOCYANIDIN AND PRODUCTION OF PROANTHOCYANIDIN IMPROVED IN QUALITY

Document Type and Number:

Japanese Patent JPH08283257

Kind Code:

A

Abstract:

PURPOSE: To improve the yield and produce the subject proanthocyanidin useful as an antioxidant for foods by adding and reacting a tannase with a solution containing the proanthocyanidin and reducing the astringency.

CONSTITUTION: (B) A tannase is added and reacted with (A) a solution containing a proanthocyanidin (preferably at 0.01-20% proanthocyanidin concentration). Furthermore, e.g. a grape seed extracted from various plant bodies, etc., is used as the component (A) and a cultured product prepared by culturing a microorganism belonging to Aspergillus oryzae is used as the component (B). The component (A) is preferably regulated to 20-60°C temperature and pH2-7 and the component (B) in an amount of ≥5 units based on 1g proanthocyanidin in the component (A) is preferably added thereto and reacted for ≥30min.

Inventors:

ARIGA TOSHIAKI
HOSOYAMA HIROSHI
YUASA KATSUMI

Application Number:

JP4695996A

Publication Date:

October 29, 1996

Filing Date:

February 09, 1996

Export Citation:

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Assignee:

KIKKOMAN CORP

International Classes:

A23L3/3544; A23L5/20; C07D311/62; C09K15/34; C11B5/00; C12P17/06; (IPC1-7): C07D311/62; A23L3/3544; C09K15/34; C11B5/00; C12P17/06

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