In vitro antioxidant, Anti-diabetic, Anti-inflammatory of Cheilocostus speciosus rhizome extracts

Abstract

Costus speciosus is an erect perennial herb belonging to family Coastaceae, an important medicinal plant widely used in several indigenous medicinal formulations. Presently, these plants could be collected from wild habitat only. Due to indiscriminate collection from natural habitat it has become endangered. In the present investigation, the phytochemical and antioxidant activity of the rhizome extracts of Costus speciosus were evaluated.Secondary metabolites such as carbohydrates, alkaloids,. The DPPH, ABTS, nitric oxide  anti scavenging activity of  water, methanol, ethanol, ethyl acetate and chloroform  and five extract for in vitro anti diabetic and anti-inflammatory activity. The present findings for flavonoids and minerals suggested that their contents are responsible for significant antioxidant activity in all extracts.