Phytochemical profile, ftir studies, antioxydant and antifungal activity of extracts of pomegranate peel (Punica granatum L)


N.H. Sehari*, W. Siouda, M. Sehari, L. Merinas and N. Netah

Punica granatum is an important source of bioactive drugs and has been used in folk medicine for many centuries. This paper describes the in vitro antifungal activity of pomegranate peel aqueous and alcoholic extracts against Aspergilus flavus and aspergillus niger seeds storage fungi. The yield of aqueous and alcoholic extract obtained from the peel of the tested plant is interesting and its inhibitory effects indicate a certain effect in biological control against the bio-aggressors of the crops and stored foodstuffs. This work was undertaken to valorise the different type of extracts studies of peel of pomegranate as sources of polyphenols and natural antioxidants, as well as, the FTIR spectroscopy analysis was performed to identify the function of punicalagins and ellagic acid, which are the main antifungal compounds. The screening of peel pomegranate revealed the presence of bioactive compounds: flavonoids, phenols, tannins, anthocyanins and saponosides. The methanol extracts of the plants indicated the highest values of total phenolic (16.35 ± 1.06 mg GAE/g DW), flavonoids (3.96 ± 0.56 mg QE/g DW), and tannin (7.59 ± 0.65 mg CE/g DW). The evaluation of the antioxidant activities demonstrated a strong antioxidant activity of pomegranate for all extracts tested. In vivo tests established the efficacy of treatments in controlling aspergilus flavus and aspergilus niger.

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