Résumé:
The aim of this study is the determination of total polyphenols and flavonoids, as well as
carotenoids of Ice plant (Carpobrotus edulis L.) collected from Oureah and Stidia
(Mostaganem) and the evaluation of its antioxidant and anti-inflammatory activities. The
polyphenols, flavonoids and carotenoids contents were determined by colorimetric methods.
The obtained results showed that C. edulis from Stidia has higher levels of polyphenols and
flavonoids. On the other hand, the pink flowers of Oureah are richer in carotenoïds. The
antioxidant activity was evaluated by two tests: DPPH, FRAP. According to the results, the
carotenoids of Carpobrotus edulis have a good antioxidant effect compared to polyphenols. In
which concern the anti-inflammatory activity, two tests were used: the denaturation of
albumin and stabilization of the erythrocyte membrane. Both polyphenols and carotenoids
extracts inhibit protein denaturation and were able to stabilize the erythrocyte membrane, but
the effect of carotenoids was more important.
