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Title 

Regioselective deglycosylation of onion quercetin glucosides by Saccharomyces cerevisiae

Authors 

Dong Min ChungY C ChungP J MaengHyo Kon Chun

Publisher 

Springer Verlag (Germany)

Issue Date 

2011

Citation 

Biotechnology Letters, vol. 33, no. 4, pp. 783-786

Keywords 

BioconversionIsoquercitrinOnionQuercetinSaccharomyces cerevisiae

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.

ISSN 

0141-5492

Link 

http://dx.doi.org/10.1007/s10529-010-0501-8

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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