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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국환경보건학회 한국환경보건학회지 한국환경보건학회지 제40권 제3호
발행연도
2014.1
수록면
255 - 263 (9page)

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Objectives: This study evaluated the fungicidal efficacy of a fumigant containing 20% ortho-phenylphenolagainst Trichophytone mentagrophytes (T. mentagrophytes), Candida albicans (C. albicans) and Aspergillusniger (A. niger). Methods: Five replicates of each carrier were contaminated by depositing 0.05 mL of each fungal suspension. After drying, two carriers without exposure to the fumigant and three carriers with exposure to the fumigant wereleft in a sealed room (25 m3) at 21±0.5oC and 60±10% relative humidity for 15 hours. Immediately after removalfrom the test room, each carrier was transferred into recovery diluent and suspended, diluted and inoculated. After incubation, the numbers of each colony were counted, and the parameter values (N, T, d) were calculated. Results: The working culture suspension number (N value) of T. mentagrophytes, C. albicans and A. niger were1.0×108, 1.2×108 and 5.7×107 CFU/mL, respectively. All the colony numbers on the carriers exposed to thefumigant (n1, n2, n3) were higher than 0.5N1 (the number of fungal test suspensions by pour plate method), 0.5N2(the number of fungal test suspensions by filter membrane method) and 0.5N1, respectively. In addition, all meannumbers of test strains recovered on the control-carriers (T value) were over 106 CFU/mL. For the fungicidal effectof the fumigant, all numbers of fungal reductions after exposure of the fumigant (d value) were 4 logCFU/mL. Conclusions: The present study showed that fumigant containing 20% ortho-phenylphenol has effectivefungicidal activity against T. mentagrophytes, C. albicans and A. niger.

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