Acylated anthocyanins from leaves of Oxalis triangularis

被引：23

作者：

Fossen, T

Rayyan, S

Holmberg, MH

Nateland, HS

Andersen, OM

机构：

[1] Univ Bergen, Dept Chem, N-5007 Bergen, Norway

[2] Polyphenols Labs AS, N-4327 Sandnes, Norway

来源：

PHYTOCHEMISTRY | 2005年 / 66卷 / 10期

关键词：

Oxalis triangularis; purple shamrock; leaves; colour; acylated anthocyanins; 4-malonylated rhamnose; 2D NNIR;

D O I：

10.1016/j.phytochem.2005.04.009

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The novel anthocyanins, malvidin 3-O-(6-O-(4-O-malonyl-alpha-rhamnopyranosyl)-beta-glueopyranoside)-5-O-beta-glucopyranoside (2), malvidin 3-O-(6-O-beta-rhamnopyranosyl-beta-glucopyranoside)-5-O-(6-O-malonyl-beta-glueopyranoside) (3), malvidin 3-O-(6-O-(4-O-malonyl-alpha-rhaninopyranosyl)-beta-glucopyranoside)-5-O-(6-O-malonyl-beta-glueopyranoside) (4), malvidin 3-O-(6-O-(4-O-malonyl-alpha-rhamnopyranosyl)-beta-glucopyranoside) (5) and malvidin 3-O-(6-O-(Z)-p-coumaroyl-beta-glucopyranoside)-5-O-beta-glucopyranoside (6), in addition to the 3-O-(6-O-alpha-rhamnopyranosyl-beta-glucopyranoside)-5-O-beta-glucopyranoside (1) and the 3-O-(6-O-(E)-p-cournaroyl-beta-glucopyranoside)-5-O-beta-glucopyranoside (7) of malvidin have been isolated from purple leaves of Oxalis triangularis A. St. -Hil. In pigments 2, 4 and 5 a malonyl unit is linked to the rhamnose 4-position, which has not been reported previously for any anthocyanin before. The identifications were mainly based on 2D NMR spectroscopy and electrospray MS. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1133 / 1140

页数：8

共 12 条

[1] Liquid chromatography-mass spectrometry identification of anthocyanins of isla oca (Oxalis tuberosa, Mol.) tubers [J].