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Alemán-Jiménez, Carolina; Domínguez-Perles, Raúl; Gallego-Gómez, Juana I; Simonelli-Muñoz, Agustín; Moine, Espérance; Durand, Thierry; Crauste, Céline; Ferreres, Federico; Gil-Izquierdo, Ángel; Medina, Sonia
Journal of agricultural and food chemistry, 12/2021, Volume: 69, Issue: 47Journal Article
Recently, new bioactive compounds were identified in olive oil, lipophenols, which are composed of a fatty acid (FA) and a phenolic core, such as HT (HT-FA). However, their bioaccessibility remains unknown. Thus, the present study uncovers the impact of the separate phases of gastrointestinal digestion on the release and stability of HT-FAs from oily matrices under in vitro simulated conditions. Accordingly, it was found that the bioaccessibility of HT derivatives is largely dependent on the type of FA that esterifies HT, as well as the food matrix. Also, the generation of HT-FAs during intestinal digestion was observed, with pancreatin being the enzyme responsible, to a higher extent, for the de novo formation of lipophenolic derivatives. These findings prompt us to identify new applications to oily matrices and their byproducts as potential functional ingredients for the promotion of health, where the possible formation of new lipophenols during digestion should be taken into consideration.
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