Antioxidant, alpha glucosidase and antibacterial evaluation of Syzygium mytifolium (Roxb.) Walp

Abstract

Medicinal plants have been the major source of combating and treating infectious diseases and health disorders throughout the ages. To explore new sources of inexpensive and safe antioxidants and antibiotics. The antioxidant and antibacterial potential of different extracts Syzygium mytifolium (Roxb.) Walp. were evaluated through 1,1-Diphenyl-2-Picryl Hydrazyl (DPPH), ferric reducing antioxidant power (FRAP), α-glucosidase inhibition, disk diffusion and agar well methods. The leaves, bark, root and whole plant of Syzygium mytifolium were extracted with various solvents viz ethanol, methanol and aqueous to give crude extracts, respectively. Among all, the ethanolic extract showed high antioxidant activity in terms of radical scavenging activity, reducing power and alpha-glucosidase inhibition at 1.84 µg/ml, 40.2 mmol/gm and 14.34 µg/ml, respectively. All the tested parts of the plant exhibited moderate to higher range of antibacterial activity against bacterial pathogens with the inhibition zones ranged between 2-27.8 mm. Syzygium mytifolium will serve as a very good source for the development of antioxidant supplements and antibiotics for addressing infectious pathogens and improvement of health status.