ANTI DIABETIC ACTIVITY BY THE IN VITRO ALPHA AMYLASE AND ALPHA-GLUCOSIDASE INHIBITORY ACTIVITY OF CATHARANTHUS ROSEUS
Keywords:
Metformin, activity, α-glucosidase inhibitory, α - amylase, Anti diabetic activity, Catharanthus roseausAbstract
Catharanthus roseus is a plant extensively known for its anti-inflammatory potential. In this study the alcoholic
extract of flower and leaf of Catharanthus roseus was tested for its α-amylase and α-glucosidase inhibitory
activity to understand its anti-diabetic potential.Varying concentration of the extracts of leaf and flower were
assayed for their inhibitory action [in vitro] on serum amylase, pancreatic amylase, α–amylase from fermented
barley and α- glucosidase. Both extracts of the leaf and flower were found to inhibit the enzymes considerably.
The leaf extract showed maximum inhibitory action with a concentration of 10 mg/mL [IC50]. IC50 for the flower
extract was found to be at a concentration of 12.5mg/mL. Further the anti-oxidant property of the herb was also
evaluated by its activity to inhibit lipid per oxidation. Catharanthus roseus extract of leaf and flower exhibit their
anti-diabetic effect by inhibiting the enzymes which has a main role in carbohydrate metabolism like α-amylase
and α-glucosidase.
