Hypochromic Effect of an Aqueous Monoglucosyl Rutin Solution Caused by Green Tea Catechins | Zendy

Tomomi Ujihara | Zendy; Nobuyuki Hayashi | Zendy

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Hypochromic Effect of an Aqueous Monoglucosyl Rutin Solution Caused by Green Tea Catechins

Author(s) -

Tomomi Ujihara,

Nobuyuki Hayashi

Publication year - 2009

Publication title -

bioscience biotechnology and biochemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.509

H-Index - 116

eISSN - 1347-6947

pISSN - 0916-8451

DOI - 10.1271/bbb.90514

Subject(s) - rutin , gallate , catechin , chemistry , aqueous solution , epicatechin gallate , polyphenol , nuclear chemistry , biochemistry , organic chemistry , antioxidant

Eight catechins reduced the color of a monoglucosyl rutin solution, the gallate-type catechins having a greater effect than the non-gallate-type catechins. Each catechin formed a 1:1 complex with monoglucosyl rutin. The binding constants of the gallate-type catechins were larger than those of the non-gallate type. These results indicate that the degree of color change in the monoglucosyl rutin solution depended on the ability of each catechin to form a complex with monoglucosyl rutin.

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