Study on Antimicrobial Activity of Garlic Products

Objective To investigate the killing effect of garlic and its products against the common pathogens.Methods Solutions of garlic products with 8 different concentrations were added into 0.1ml liquid containing germs and cultured in 37℃ for 24 hours.The germs were inoculated in the agar and then the mean bacterial colonies were counted and analyzed. Results The experiment showed that the garlic and its products could kill the tested germs or to inhibit their activity. Conclusions Garlic and its products showed efficiently activity in killing Salmonella species,Shigella dysenteriae and Staphylococcus aureus,but the effect against Escherichia coli was less effective.Proliferation of B.subtilis and B.cereus was inhibited by garlic products,and the solution containing 3% garlic juice could efficiently kill B.cereus.