Evaluation of in-vitro antibacterial effect of crude venom of Pseudocerastes Persicus snake

Abstract

Objectives: This study aimed to assess the antibacterial activity of the crude venom of Pseudocerastes persicus against some Gram-negative and Gram-positive bacteria using an antimicrobial susceptibility test.Methods: The susceptibility of Methicillin-Resistant Staphylococcus aureus (MRSA), Listeria monocytogenes, Bacillus subtilis, Salmonella typhimurium, and E. coli O157:H7 to the crude venom of Pseudocerastes persicus was investigated at a concentration of 100 µg/ml. Standard antibiotic disks were utilized as positive controls. Furthermore, the minimum inhibitory concentration (MIC) against Staphylococcus aureus and MRSA was determined through the dilution method (160-1.25 µg/ml). These MIC values were compared with those of conventional drugs such as streptomycin (25 µg), tetracycline (30 µg), and neomycin (25 µg).Results: The crude venom exhibited significant antibacterial activity against Staphylococcus aureus, MRSA, Listeria monocytogenes, and E. coli O157:H7. It displayed moderate effects on Salmonella typhimurium but showed no significant impact on Bacillus subtilis. The MIC values against these bacteria ranged from 160 to 80 µg/ml.Conclusion: The venom from Pseudocerastes persicus demonstrates antibacterial properties and shows potential therapeutic value. Further investigations involving fractionation are necessary to fully explore its therapeutic potential.

Keywords

• pseudocerastes persicus
• snake
• antibacterial effect