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Stability of pelargonidin 3-glucoside in model solutions
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Orientador(es)
Resumo(s)
Methodology: Aqueous solutions of Pg 3-glucoside (1,8x10-3M in citrate buffer 0,1M at pH 3,5) were prepared and stored:
(a) in the presence of oxygen (GOx)
(b) in the presence of oxygen and sugars (5,7%, glucose:fructose:sacarose, 42:37:21) (GZ)
(c) in anaerobic conditions (GsinOx)
Solutions were stored in darkness at 25ºC for 8 months, and their evolution was followed by UV-vis spectrophotometry, HPLC-DAS and LC-MS.
Descrição
Palavras-chave
Pelargonidin 3-glucoside Model solutions Color change Storage Anthocyanin breakdown products Aerobic/anaerobic conditions
Contexto Educativo
Citação
Lopes-da-Silva, M.F.; Escribano-Bailón, M.T.; Rivas-Gonzalo, J.C.; Santos-Buelga, C. (2004). Stability of pelargonidin 3-glucoside in model solutions. In Polyphenols Communications 2004. XXII International Conference on Polyphenols, Helsinki. p. 627-628
Editora
Antti Hoikkala; Otto Soidinsalo (Editors)