Carotene reactivity in pink grapefruit juice elucidated from model systems and multiresponse modeling

Achir Nawel, Hadjal Thiziri, Madani Khodir, Dornier Manuel, Dhuique-Mayer Claudie. 2015. Carotene reactivity in pink grapefruit juice elucidated from model systems and multiresponse modeling. Journal of Agricultural and Food Chemistry, 63 (15) : 3970-3979.

Quartile : Outlier, Sujet : AGRICULTURE, MULTIDISCIPLINARY / Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED

Résumé : This study was carried out to assess the impact of pink grapefruit juice composition and structure on the degradation kinetics of lycopene and β-carotene using model systems and multiresponse modeling. Carotenes were heated at four temperatures in their native matrix (juice) or were extracted and incorporated in water/ethanol emulsion systems formulated with or without ascorbic acid or naringin. Kinetic analysis showed that the rate constants and activation energy were lower for lycopene than for β-carotene in the juice, while this trend was inversed in the model system. Multiresponse modeling was used to analyze the role of ascorbic acid and naringin in carotene degradation. Ascorbic acid had a very low impact, while naringin significantly increased the carotene degradation and isomerization rates. We concluded that lycopene was more sensitive to thermal degradation and phytochemical interactions than β-carotene, but this behavior was masked in the fruit juice matrix by better structural protection.

Mots-clés Agrovoc : jus de fruits, pomelo, carotène, lycopène, réaction chimique, biodégradation, température, naringine, acide ascorbique

Mots-clés géographiques Agrovoc : France

Mots-clés complémentaires : Cinétique, Bêta-carotène

Classification Agris : Q04 - Composition des produits alimentaires
Q02 - Traitement et conservation des produits alimentaires

Champ stratégique Cirad : Axe 3 (2014-2018) - Alimentation durable

Auteurs et affiliations

• Achir Nawel, Montpellier SupAgro (FRA)
• Hadjal Thiziri, Faculty of Nature and Life Sciences (DZA)
• Madani Khodir, Faculty of Nature and Life Sciences (DZA)
• Dornier Manuel, Montpellier SupAgro (FRA)
• Dhuique-Mayer Claudie, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0001-7153-2897

Source : Cirad-Agritrop (https://agritrop.cirad.fr/577258/)

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