Phytochemical screening and antioxidant activity of Jasminum multiflorum (pink Kakada) leaves and flowers

Abstract

Jasminum multiflorum is an evergreen shrub belongs to the family Oleaceae which is used as a traditional medicine from ancient times. The leaves and flowers have a rich source of phytochemicals like alkaloids, phenols, flavonoids, tannins, etc., which are capable of curing various diseases. In this regard, an experiment was conducted to screen the phytochemical components and antioxidant activity in leaves and flowers of Jasminum multiflorum. The extraction was carried out by using different solvents viz., methanol, ethanol, ethyl acetate, chloroform, petroleum ether and aqueous extracts for phytochemical screening and methanol, ethanol, ethyl acetate and aqueous extracts for antioxidant analysis. Antioxidant assay was done by determining DPPH, ABTS and Chelating potential of leaves and flower extracts. Phytochemical screening of leaves and flower extracts revealed the presence of alkaloids, tannins, carbohydrates, sterols and terpenoids, flavonoids, cardiac glycosides, proteins and amino acids. The quantitative determination of total phenolic, total flavonoids and various antioxidant activities (DPPH, ABTS and chelating potential) was carried out using colorimetric method and the results revealed that the total phenolic and total flavonoids were maximum in ethanol extract of leaves. The antioxidant activity was expressed in terms of EC50 value and maximum reduction percentage was observed in ethanol extract of leaves.