Abstrait

Synthesis of Silver Nanoparticles through Chemical Reduction and its Antibacterial Effect

Asadi M, Khosravi-Darani K, Haj-Seyed Javadi N, Esmaeili S and Azadnia E

Traditionally, antimicrobial activities of silver have been known for human, but recently effects of silver nanoparticles and their antimicrobial effects have evaluated by researchers. In this study silver nanoparticles were produced by chemical reduction and then antimicrobial effects of these particles for two of the most threatening bacteria in food industries, Staphylococcus aureus and Escherichia coli as gram-positive and gramnegative bacteria examined by concentrations of 5, 10, 25, 50 mg L-1. The Results indicated that the chemical reduction method is a good and suitable procedure for production of silver nanoparticles, but it needs high accuracy. The minimum inhibitory effect of silver nanoparticles for Escherichia coli and Staphylococcus aureus were 5 and l0 mg L-1 respectively, which Escherichia coli was more resistance. So, these particles could be considered as a suitable alternative to conventional antimicrobial agents.