Antioxidant estimation of petals and stamens extracts of saffron, Crocus sativus L.

Abstract

These investigations carried out in 2020-2021, at the Agricultural Scientific Research Center in Tartous - Amrit. This paper examined the determination of both phenols and flavonoids in the alcoholic extract of saffron petals and stamens using rutin and gallic acid solution, in addition to estimating the antioxidant efficacy of the extracts using the Diphenyl Becquerel Hydrazyl Test. The results showed that saffron petals extract significantly exceeded the stamens extract in the amount of phenols and flavonoids, reaching (5.23-2.89) mg.g^-1, respectively. Thus, the ability to inhibit free radicals was higher in petals (60.9%) than in stamens (34.18%) at concentration (0.5 mg. ml^-1( and it was directly proportional to the increase in concentration of extracts.