Variation and Characterization of Bacterial Communities Contaminating Two Saunas Operated at 64℃ and 76℃

서지정보

· 발행기관 : 대한미생물학회
· 수록지 정보 : Journal of Bacteriology and Virology / 43권 / 3호 / 195 ~ 203페이지
· 저자명 : 김봉수, 서재란, 박두현

초록

This study was performed to analyze 6 day-term variations in bacterial communities contaminating the floor of two dry saunas that were operated at 64℃ (low temp) and 76℃ (high temp). Bacteria were sampled daily from the saunas for 6 days from Monday to Saturday. Genomic DNA was isolated directly from bacteria-collected cotton swabs. The diversity of the bacterial communities collected from the saunas was analyzed using thermal gradient gel electrophoresis (TGGE). The total numbers of DNA bands separated by TGGE for bacteria collected from the low temp and high temp sauna were 20 and 18, respectively, during the 6 days. Seven of 20 bacteria in the low temp sauna and eight of 18 bacteria in the high temp sauna were detected more than three times over the 6 experimental days. Twelve of the 26 bacterial genera contaminating the saunas were cross detected. Bacteria belonging to the genera Moraxella and Acinetobacter were selectively detected in the low temp sauna, whereas those belonging to Aquaspirillum, Chromobacterium, Aquabacterium,Gulbenkiania, Pelomonas, and Aquitalea were selectively detected in the high temp sauna. Three species of bacteria contaminating both the low and high temp saunas were thermophile or thermoduric. The results indicate that the saunacontaminating bacteria may have been transferred from outside the saunas by user traffic but did not inhabit the saunas.

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