Glycosylation of daidzein by the Eucalyptus cell cultures
2008
Shimoda, Kei | Satō, Noriaki | Kobayashi, Tatsunari | Hamada, Hatsuyuki | Hamada, Hiroki
The sequential glycosylation of a soybean isoflavone, daidzein, with cultured suspension cells of Eucalyptus perriniana and cyclodextrin glucanotransferase was studied. Daidzein was converted into two glycosylation products, daidzein 7-O-β-d-glucopyranoside (39%) and daidzein 7-O-[6-O-(β-d-glucopyranosyl)]-β-d-glucopyranoside (β-gentiobioside, 6%), by cultured E. perriniana cells. Further glycosylation of daidzein 7-O-β-glucoside with cyclodextrin glucanotransferase gave daidzein 7-O-[4-O-(α-d-glucopyranosyl)]-β-d-glucopyranoside (β-maltoside, 26%), daidzein 7-O-β-maltotrioside (15%), and daidzein 7-O-β-maltotetraoside (7%).
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