Occurrence in Soybeans of a Novel Vitamin B6Conjugate that Liberates Pyridoxine by β-Glucosidase Action after Alkali Treatment | Zendy

Kenjiro Tadera | Zendy; Kazutaka Oda | Zendy; Chizuko Nakahara | Zendy

Open Access

Occurrence in Soybeans of a Novel Vitamin B₆Conjugate that Liberates Pyridoxine by β-Glucosidase Action after Alkali Treatment

Author(s) -

Kenjiro Tadera,

Kazutaka Oda,

Chizuko Nakahara

Publication year - 1999

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.63.213

Subject(s) - pyridoxine , chemistry , bran , conjugate , vitamin b6 , alkali metal , hydrolysis , food science , vitamin b , vitamin , biochemistry , organic chemistry , mathematics , raw material , mathematical analysis

A type of vitamin B6 conjugates (B6X), which liberates free vitamin B6 by alkaline and successive β-glucosidase hydrolyses, is known to occur in rice bran and wheat bran. Conflicting experimental results, however, have been reported about the occurrence of B6X in soybeans. This study afforded evidence for B6X occuring in soybeans: certainly a highly purified B6X preparation from whole soybeans liberated pyridoxine when it was treated with alkali followed by β-glucosidase hydrolysis, and 5'-O-(β-D-glucopyranosyl)pyridoxine by alkali treatment alone. The B6X content varied with cultivars, of which a certain kind contained no B6X.

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