3,4-DIHYDROXY-7,8-DIHYDRO-BETA-IONOL BETA-D-GLUCOPYRANOSIDE - NATURAL PRECURSOR OF ISOMERIC VITISPIRANES FROM GOOSEBERRY (RIBES-UVA-CRISPA L) AND WHITEBEAM (SORBUS-ARIA) LEAVES

被引：7

作者：

HUMPF, HU ^{[1
]}

WINTOCH, H ^{[1
]}

SCHREIER, P ^{[1
]}

机构：

[1] UNIV WURZBURG,LEHRSTUHL LEBENSMITTELCHEM,AM HUBLAND,W-8700 WURZBURG,GERMANY

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1992年 / 40卷 / 11期

关键词：

D O I：

10.1021/jf00023a006

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

After isolation of glycosidic extracts obtained from gooseberry (Ribes uva crispa L.) and whitebeam (Sorbus aria) leaves by Amberlite XAD-2 adsorption and methanol elution followed by hydrolysis under simultaneous distillation-extraction conditions at pH 2.5, among the aglycons the isomeric vitispiranes were detected as major constituents (20 and 70 mg/kg, respectively) by HRGC and HRGC-MS analyses. Using prefractionation of the glycosidic extracts by rotation locular countercurrent chromatography, subsequent acetylation and liquid chromatographic purification, a glycoside was isolated in pure form whose structure was elucidated by LC-MS and NMR analyses to be the beta-D-glucopyranoside of 3,4-dihydroxy-7,8-dihydro-beta-ionol.

引用

页码：2060 / 2062

页数：3

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