Anthocyanin stability: a chemometrical approach

• Autor(es): Cabrita, Luís ; Fossen, Torgils ; Flåten, Geir R. ; Andersen, Øyvind M.
• Data: 2002
• Identificador Persistente: http://hdl.handle.net/10198/3210
• Origem: Biblioteca Digital do IPB
• Assunto(s): Anthocyanins; Colour stability; HPLC; UV-Vis; Chemometrics; Reduced factorial design
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

The stability of cyanidin 3-glucoside towards five different factors (pH, anthocyanin concentration, sodium chloride concentration, ascorbic acid concentration, Oxygen) was studied during 60 days storage at room temperature using a 2^4-1 reduced factorial design. The influence of each individual parameter on anthocyanin stability was found to vary as a function of time. Sodium chloride and ascorbic acid were, respectively, the variables most contributing to and against anthocyanin stability. Results suggest there may be some degree of interaction between anthocyanin/ascorbic acid, and between pH/Oxygen, affecting anthocyanin degradation.