Sinela André Mundombe, Rawat Nadirah, Mertz Christian, Achir Nawel, Fulcrand Hélène, Dornier Manuel. 2017. Anthocyanins degradation during storage of Hibiscus sabdariffa extract and evolution of its degradation products. Food Chemistry, 214 : 234-241.
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Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q1, Sujet : NUTRITION & DIETETICS
Résumé : Degradation parameters of two main anthocyanins from roselle extract (Hibiscus sabdariffa L.) stored at different temperatures (4–37 °C) over 60 days were determined. Anthocyanins and some of their degradation products were monitored and quantified using HPLC–MS and DAD. Degradation of anthocyanins followed first-order kinetics and reaction rate constants (k values), which were obtained by non-linear regression, showed that the degradation rate of delphinidin 3-O-sambubioside was higher than that of cyanidin 3-O-sambubioside with k values of 9.2·10−7 s−1 and 8.4·10−7 s−1 at 37 °C respectively. The temperature dependence of the rate of anthocyanin degradation was modeled by the Arrhenius equation. Degradation of delphinidin 3-O-sambubioside (Ea = 90 kJ mol−1) tended to be significantly more sensitive to an increase in temperature than cyanidin 3-O-sambubioside (Ea = 80 kJ mol−1). Degradation of these anthocyanins formed scission products (gallic and protocatechuic acids respectively) and was accompanied by an increase in polymeric color index.
Mots-clés Agrovoc : Hibiscus sabdariffa, extrait d'origine végétale, anthocyane, stockage, biodégradation, dégradation thermique, cyanidine, delphinidine
Mots-clés géographiques Agrovoc : Sénégal
Mots-clés complémentaires : Cinétique
Classification Agris : Q02 - Traitement et conservation des produits alimentaires
Q04 - Composition des produits alimentaires
Champ stratégique Cirad : Axe 3 (2014-2018) - Alimentation durable
Auteurs et affiliations
- Sinela André Mundombe, CIRAD-PERSYST-UMR Qualisud (FRA)
- Rawat Nadirah
- Mertz Christian, CIRAD-PERSYST-UMR Qualisud (FRA)
- Achir Nawel, Montpellier SupAgro (FRA)
- Fulcrand Hélène, INRA (FRA)
- Dornier Manuel, Montpellier SupAgro (FRA)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/581255/)
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