Multimodal approaches of the hydroalcoholic extract of Diospyros peregrina fruits in diabetic therapy

Abstract

The matured fruits of Diospyros peregrina possess significant antidiabetic activity. The present investigation was undertaken to evaluate the target of action of the hydroalcoholic extract of D. peregrina fruit in diabetic pathophysiology. The extract was tested in vitro for inhibition of glucose absorption by α-amylase inhibition assay, glucose uptake study by isolated rat hemidiaphragm method and free radical scavenging activity by DPPH method. The extract exhibited significant α-amylase inhibition (IC₅₀ 136.5 µg mL⁻¹), peripheral glucose utilisation and radical scavenging (IC₅₀ 167.5 µg mL⁻¹) activity. From the results, it may be concluded that the hydroalcoholic extract of D. peregrina fruit can counteract diabetes by multiple mechanisms, namely inhibition of carbohydrate absorption, improving peripheral glucose utilisation and antioxidant defence.

Keywords:

• Diospyros peregrina
• α-amylase inhibition
• glucose utilisation
• antioxidant activity

Acknowledgements

The authors are thankful to Jadavpur University, Kolkata, India for providing facilities for their research work.