Biotransformation of raspberry ketone and zingerone by cultured cells of Phytolacca americana
作者:Kei Shimoda、Toshio Harada、Hatsuyuki Hamada、Nobuyoshi Nakajima、Hiroki Hamada
DOI:10.1016/j.phytochem.2006.11.030
日期:2007.2
The biotransformation of raspberry ketone and zingerone were individually investigated using cultured cells of Phytolacca americana. In addition to (2S)-4-(4-hydroxyphenyl)-2-butanol (2%), (2S)-4-(3,4-dihydroxyphenyl)-2-butanol (5%), 4-[4-beta-D-glucopyranosyloxy)phenyl]-2-butanone (19%), 4-[(3S)-3-hydroxybutyl]phenyl-beta-D-glucopyranoside (23%), and (2S)-4-(4-hydroxyphenyl)but-2-yl-beta-D-glucopyrdnoside (20%), two biotransformation products, i.e., 2-hydroxy-4-[(3S)-3-hydroxybutyl]phenyl-beta-D-glucopyranoside(12%) and 2-hydroxy-5-[(3S)-3-hydroxybutyl]phenyl-beta-D-glucopyranoside (11%), were isolated from suspension cells after incubation with raspberry ketone Or three days. On the other hand, two compounds, i.e., (2S)-4-(4-hydroxy-3-methoxyphenyl)but-2-yl-beta-D-glucopyranoside (17%) and (2S)-2-(beta-D-glucopyranosyloxy)-4-[4-(beta-D-glucopyranosyloxy)-3-methoxyphenyl]butane (16%), together with (2S)-4-(4-hydroxy-3-methoxyphenyl)-2-butanol (15%), 4-[4-(beta-D-glucopyranosyloxy)-3-methoxyphenyt]-2-butanone (21%), and 4-[(3S)-3-hydroxybutyl]-2-methoxyphenyl-beta-D-glucopyranoside (24%) were obtained upon addition of zingerone. Cultured cells of P. americana can reduce, and regioselectively hydroxylate and glucosylate, these food ingredients to their beta-glycosides. (c) 2006 Elsevier Ltd. All rights reserved.