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Total phenolic contents and antioxidant activity of organic fractions from Capparis spinosa and Limoniastrum feei

Imad Abdelhamid El-Haci, Amal Didi, Fawzia Atik Bekkara, Mohamed Amine Didi

In recent years, interest in finding new sources of natural antioxidants has increased, especially that of medicinal plants which are mainly required in the pharmaceutical field. The study of antioxidant activity has become an inescapable in the search for new bioactive substances. Phenolic compounds appear to be targeted by researchers. Our work aim is to evaluate the antioxidant capacity of phenolic compounds extracted from twoAlgerian medicinal plants: Capparis spinosa and Limoniastrum feei. The two plants of this study presented average content of phenolics and flavonoids compounds. The antioxidant activity of the various organic fractions was evaluated using different antioxidant assays, including: reducing power and DPPH free radical scavenging activity. The results showed that the ethyl acetate fraction (fraction rich in mono and di-glycosids) had a high antioxidant activity than the butanolic fraction (fraction rich in polyglycosids). In addition, the organic fractions of different parts of Limoniastrum feei presented an high potent to scavenging DPPH radical and reducing power.