Polyphenols and antioxidant activities of opuntia dillenii fruit - Lamine, Myriam;Rahali, Fatma
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The extraction of phenolic compounds is a very important step for the valorisation of these active ingredients. Indeed, it depends on the extraction method and the appropriate solvent that preserves their biological properties. In this study, it was found that 100% ethanol maceration is the best extraction technique for total polyphenols and flavonoids. The results of this study also reveal that the pulp has the highest content of carotenoids. Regarding the DPPH free radical reduction method we found that the 100% ethanolic extract as well as the bark has the significant antiradical activity.

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Produktbeschreibung
The extraction of phenolic compounds is a very important step for the valorisation of these active ingredients. Indeed, it depends on the extraction method and the appropriate solvent that preserves their biological properties. In this study, it was found that 100% ethanol maceration is the best extraction technique for total polyphenols and flavonoids. The results of this study also reveal that the pulp has the highest content of carotenoids. Regarding the DPPH free radical reduction method we found that the 100% ethanolic extract as well as the bark has the significant antiradical activity.
Autorenporträt
La dott.ssa Myriam Lamine ha conseguito una laurea in biotecnologie vegetali e un dottorato di ricerca in biologia con competenze professionali in materia di tracciabilità e autenticazione degli alimenti.