Contribution of each caffeoyl residue of the pigment molecule of gentiodelphin to blue color development

被引：55

作者：

Yoshida, K ^{[2
]}

Toyama, Y

Kameda, K

Kondo, T

机构：

[1] Sugiyama Jogakuen Univ, Sch Life Sci, Nagoya, Aichi 4648662, Japan

[2] Nagoya Univ, Grad Sch Human Informat, Nagoya, Aichi 4648601, Japan

[3] Nagoya Univ, Chem Instrument Ctr, Nagoya, Aichi 4648602, Japan

来源：

PHYTOCHEMISTRY | 2000年 / 54卷 / 01期

关键词：

Gentiana makinoi; gentiodelphin; acylated anthocyanin; intramolecular stacking; flower color development; conformational analysis;

D O I：

10.1016/S0031-9422(00)00049-2

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：

To clarify the function of each caffeoyl residue in the diacylated anthocyanin gentiodelphin, a pigment from the blue flower of Gentiana makinoi, two mono-deacyl derivatives were compared for both color development and stability. In neutral solution, 3.5-di-O-beta-D-glucopyranosyl-3'-O-(6-O-caffeoyl-beta-D-glucopyranosyl)delphinidin was both bluer and more stable than 3,3'-di-0-8D-glucopyrannsyl-5-O-(6-O-caffeoyl-beta-D-glucopyranosyl)delphinidin. Conformational analysis of each derivative under acidic conditions revealed only the 3'-O-caffeoylglucopyranosyl derivative to demonstrate intramolecular stacking. Additionally, the acyl residue in the B-ring contributed more to blue color development than that in the A-ring. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：85 / 92

页数：8

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