Grapefruit juices impair the bioaccessibility of [bêta]-Carotene from orange-fleshed sweet potato but not its intestinal uptake by caco-2 cells

Poulaert Marie, Borel Patrick, Caporiccio Bertrand, Günata Ziya, Dhuique-Mayer Claudie. 2012. Grapefruit juices impair the bioaccessibility of [bêta]-Carotene from orange-fleshed sweet potato but not its intestinal uptake by caco-2 cells. Journal of Agricultural and Food Chemistry, 60 (2) : 685-691.

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

Résumé : Among various factors influencing ?-carotene (Bc) bioavailability, information on interactions between carotenoids or other micronutrients such as flavonoids during a meal that contains different plant-derived foods is quite limited. Because orange-fleshed sweet potato (OFSP) is an important Bc-rich staple food, a source of vitamin A in developing countries, this study focused on the effect of citrus fruit juice carotenoids and flavonoids on Bc bioaccessibility from OFSP. In vitro digestion coupled with the Caco-2 cell culture model was used to evaluate the bioaccessibility and cellular uptake of Bc from OFSP in the presence of pink grapefruit (pGF) or white grapefruit (wGF) juices. The addition of grapefruit juices significantly decreased the bioaccessibility, by up to 30%, but not the cellular uptake of Bc from boiled OFSP. Lycopene, but more probably naringin, present in grapefruit juices was suspected to be responsible for the inhibitory effect of the citrus juices on Bc bioaccessibility. This inhibition was apparently due in part to competition for incorporation between Bc and naringin into mixed micelles during in vitro digestion. In contrast, Bc uptake from dietary micelles was not impaired by naringin.

Mots-clés Agrovoc : caroténoïde, flavonoïde, biodisponibilité, digestibilité, jus de fruits, Citrus paradisi, pomelo, patate douce, lycopène

Mots-clés complémentaires : Provitamine A, Bêta-carotène

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

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

• Poulaert Marie, UM2 (FRA)
• Borel Patrick, INSERM (FRA)
• Caporiccio Bertrand, UM2 (FRA)
• Günata Ziya, UM2 (FRA)
• Dhuique-Mayer Claudie, CIRAD-PERSYST-UMR Qualisud (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/563151/)

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