Contents of Resveratrol, Piceid, and Their Isomers in Commercially Available Wines Made from Grapes Cultivated in Japan
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概要
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The presence of resveratrol (3, 5, 4'-trihydroxystilbene) and its β-glucoside, piceid (resveratrol-3-β-D-glucopyranoside), together with their isomers in wine appears to be one of the beneficial factors conferring a protective effect against cardiovascular disease through red wine ingestion. A total of 42 red and white wines was collected in arears from Hokkaido to Kyushu in Japan. The wines were fractionated with a C_<18> Sep-pak cartridge, and the active principles were eluted with ethyl acetate. Crude trans- and cis-piceid were extracted from a Chinese medicine, 'Kojohkon' (Polygonum cuspidatum), and their retention times and UV absorption were confirmed by HPLC. trans- and cis-Resveratrol, and trans- and cis-piceid were analyzed in a short C_<18> HPLC column, and cis-resveratrol was quantified from the amount of cis-isomer converted from authentic trans-resveratrol that had been treated by UV irradiation. The content of piceid is shown as the resveratrol equivalent. The average content of total stilbene compounds was 4.37 mg/liter in red wines, while only 0.68 mg/liter in white wines. Red wines made from Pinot noir, Merlot, and Zweigeltrebe grapes all had a high resveratrol content.
- 社団法人日本農芸化学会の論文
- 1997-11-23
著者
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Okuda Tohru
The Institute Of Enology And Viticulture Yamanashi University
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Yokotsuka Koki
The Institute Of Ecology And Viticulture Yamanashi University
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SATO Michikatsu
Wines & Spirits Research Center, Mercian Corporation
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SUZUKI Yumiko
Wines & Spirits Research Center, Mercian Corporation
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Sato Michikatsu
Wines & Spirits Research Center Mercian Corporation
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Suzuki Yumiko
Wines & Spirits Research Center Mercian Corporation
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