Regioselective deglycosylation of onion quercetin glucosides by Saccharomyces cerevisiae

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Title
Regioselective deglycosylation of onion quercetin glucosides by Saccharomyces cerevisiae
Author(s)
Dong Min Chung; Y C Chung; P J Maeng; Hyo Kon Chun
Bibliographic Citation
Biotechnology Letters, vol. 33, no. 4, pp. 783-786
Publication Year
2011
Abstract
Bioconversion of quercetin glucosides using four generally recognized as safe (GRAS) organisms (Aspergillus oryzae, Bacillus subtilis, Lactobacillus plantarum, and Saccharomyces cerevisiae) was evaluated by measuring changes in the levels of quercetin compounds of onion. Of the four organisms, S. cerevisiae increased the content of quercetin-3-O-β-d-glucoside (III; isoquercitrin) and quercetin (IV), whereas decreasing quercetin-3,4′-O-β-d-glucoside (I) and quercetin-4′-O-β-d-glucoside (II). Also, S. cerevisiae converted authentic compound I to III, and II to IV, respectively. These results suggest that S. cerevisiae can be used to increase the levels of isoquercitrin (III), the most bioavailable quercetin compound in onion.
Keyword
BioconversionIsoquercitrinOnionQuercetinSaccharomyces cerevisiae
ISSN
0141-5492
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s10529-010-0501-8
Type
Article
Appears in Collections:
Division of Bio Technology Innovation > SME Support Center > 1. Journal Articles
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