Antioxidant, anti-amylase and lipid lowering potential of leaves of Aporosa lindleyana Baill. (Kebella)

Globally, the demand for herbal products with antioxidant capacity is increased due to many health benefits. The approach to discover new drugs through natural products has become a successful strategy in recent years. Aporosa lindleyana Baill. (Kebella) is used as a leafy vegetable in Sri Lanka. Although the root and bark of this plant showed many biological activities, only antioxidant activity by DPPH mechanism and anti-inflammatory activity are reported in leaf. The present study investigated the antioxidants [Total Phenolic Content (TPC) and Total Flavonoid Content (TFC)], antioxidant activities [Ferric Reducing Antioxidant Power (FRAP),1,1-diphenyl-2-picrylhydrazyl radicalscavenging assay (DPPH),2,2’-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt radical scavenging assay (ABTS) and Oxygen Radical Absorbance Capacity (ORAC)], anti-amylase activity(using acarbosestandard)and anti-lipidaemicactivities via anti-lipase (AL), anti-cholesterolesterase (AC) and bile acids binding (BAB) invitro of 95% ethanolic extract (EE) and water extract (WE) of A.lindleyanaleaves along with its nutritional value.Both extracts showed significant differences (P