Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12253/506
Title: | Influence of trans-cis isomerisation of coumaric acid substituents on colour variance and stabilisation in anthocyanins |
Authors: | George, Florian Figueiredo, Paulo Toki, Kenjiro Tatsuzawa, Fumi Saito, Norio Brouillard, Raymond |
Keywords: | Acylated anthocyanins Intramolecular copigmentation trans-cis isomerisation |
Issue Date: | 2001 |
Citation: | Phytochemistry 57 (2001) 791–795 |
Abstract: | The recently isolated pigments from Petunia integrifolia and Triteleia bridgesii present a distinct feature that sheds new light on the understanding of intramolecular copigmentation of anthocyanins. These are among the infrequent anthocyanins that naturally present a coumaric acid substituent in both cis and trans forms. As a consequence, the two isomers demonstrate substantial variations of their thermodynamic and kinetic constants and also colour properties. A possible explanation for these characteristics is presented, making use of molecular modelling and taking into account the three-dimensional structures of the pigments. |
URI: | http://hdl.handle.net/10884/506 |
Appears in Collections: | A CS/CN - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
trans cis.pdf | 613.99 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.