A new myricetin-rhamnodiglucoside from Camellia sinensis

被引：17

作者：

Hilal, Yumen ^{[1
]}

Engelhardt, Ulrich H. ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Food Chem, D-38106 Braunschweig, Germany

来源：

NATURAL PRODUCT RESEARCH | 2009年 / 23卷 / 17期

关键词：

Camellia sinensis Theaceae; white tea; flavonol glycosides; myricetin-rhamnodiglucoside; HPLC-PDA; HPLC-ESI-MS/MS; 1D/2D NMR; FLAVONOL GLYCOSIDES; TEA; HEALTH; GREEN;

D O I：

10.1080/14786410902975673

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The isolation and structural elucidation of the novel myricetin-3-O-[beta-D-glucopyranosyl-(1 -> 3)-alpha-L-rhamnopyranosyl-(1 -> 6)-beta-D-glucopyranoside] from tea (Camellia sinensis (L.) O. Kuntze) by means of HPLC-MS/MS and various NMR techniques is described. The compound was not present in all tea samples analysed. In the case of white tea, it was detected in 20 out of 40 samples analysed (35-255 mg kg(-1)), in green tea it was detected in 18 out of 35 samples in the same concentration range (37-205 mg kg(-1)), while it was found only in 1 sample (51 mg kg(-1)1) of 5 black teas analysed.

引用

页码：1621 / 1629

页数：9

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