Utilize este identificador para referenciar este registo:
http://hdl.handle.net/20.500.12253/502
Título: | New features of intramolecular copigmentation by acylated anthocyanins |
Autores: | Figueiredo, Paulo George, Florian Tatsuzawa, Fumi Toki, Kenjiro Saito, Norio Brouillard, Raymond |
Palavras-chave: | Anthocyanins Orchids Intramolecular copigmentation |
Data: | 1999 |
Citação: | Phytochemistry 51 (1999) 125-132 |
Resumo: | Three series of structurally related anthocyanins\ extracted from the red purple ~owers of Dendrobium {Pramot|\ xLaeliocattleya cv[ Mini Purple\ Bletilla striata and Phalaenopsis all belonging to the Orchidaceae family and another series extracted from the pink ~owers of Senecio cruentus "Compositae# allowed the con_rmation of the existence of strong intramolecular copigmentation e}ects[ These interactions confer stability to the coloured forms of the molecules\ in a wide range of slightly acidic to neutral aqueous media[ Moreover\ the existence of structural relationships among the four series stressed the di}erent in~uences exerted by the diverse substituent groups[ The existence of a malonylglucoside attached to position 2 of all but three of the molecules put forward a new role for the malonyl residue\ in this particular position[ |
URI: | http://hdl.handle.net/10884/502 |
Aparece nas colecções: | A CS/CN - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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phyto1.pdf | 684.23 kB | Adobe PDF | Ver/Abrir |
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