Antidiabetic Activity of Aqueous and Methanolic Extract of Dried Pericarp (Shell) of Juglans Regia L.

The aim of the present study was to investigate the in-vitro anti-diabetic activity of aqueous and methanolic extract of dried pericarp (Shell) of Juglans regia L. The preliminary qualitative phytochemical screening was also undertaken to reveal the presence of Phyto-constituents in the extracts. Phytochemical screening of aqueous extract shows the presence of polyphenols, flavanoids, cardiac glycosides, carbohydrates and reducing sugar while methanolic extract show the presence of alkaloids, polyphenols, cardiac glycosides, carbohydrates and reducing sugar. Pharmacological evaluation of Juglans regia was performed by α-amylase inhibition assay method. Percentage inhibition of α amylase at dose of 50mg/mL, 100 mg/mL and 150 mg/mL of aqueous and methanolic extract was found to be 33.33, 66.67, 93.34 and 32.27, 59.64, 90.74 respectively. Among the extracts the aqueous extract showed highest activity as compared to control and methanolic extract.