Bactericidal Efficacy of Fumagari OPP(R), Fumigant Against Staphylococcus aureus
2013
Cha, H.N., Gyeongsang National University, Chinju, Republic of Korea | Park, E.K., Kosin University, Busan, Republic of Korea | Choi, H.J., Inje University, Gimhae, Republic of Korea | Kim, Y.P., Elkahmco Bio Co., Ltd., Seoul, Republic of Korea | Yoo, C.Y., Gyeongsang National University, Chinju, Republic of Korea | Kim, S., Gyeongsang National University, Chinju, Republic of Korea | Lee, H.J., Gyeongsang National University, Chinju, Republic of Korea
This study was performed to evaluate the bactericidal efficacy of Fumagari OPP(R), fumigation disinfectant, containing 20% ortho-phenylphenol against Staphylococcus aureus (S. aureus). In this research, efficacy test of fumigant against S. aureus was carried out according to French standard NF T 72-281. S. aureus working culture suspension number (N value), all of the colony numbers on the carriers exposed with the fumigant (n1, n2, and n3), the number of bacterial test suspentions by pour plate method (N1), the number of bacterial test suspentions by filter membrane method (N2) and the mean number of bacteria recovered on the control-carriers (T value) were obtained from the preliminary test. In addition, the reduction number of S. aureus exposed with the fumigant (d value) was calculated using T value, the mean number of bacteria in recovery solution (n1) and the mean number of bacteria on carriers plated in agar (n2). N value was 4.0 × 108CFU/mL, and n1, n2, and n3 were higher than 0.5N1, 0.5N2 and 0.5N1, respectively. Additionally, T value was 3.4 × 106 CFU/mL. In the bactericidal effect of the fumigant, the d value was 6.43 logCFU/mL. According to the French standard for the fumigant, the d value for the effective bactericidal fumigant should be over than 5 logCFU/mL. The results indicated that Fumagari OPP(R) had an effective bactericidal activity against S. aureus, then the fumigant can be applied to disinfect food materials and kitchen appliances contaminated with pathogenic bacteria.
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