Biocontrol Science
Online ISSN : 1884-0205
Print ISSN : 1342-4815
ISSN-L : 1342-4815
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Evaluation of the Compact Dry X-SA Method for Enumerating Staphylococcus aureus in Artificially Contaminated Food Samples
HAJIME TERAMURASHINGO MIZUOCHIHIDEMASA KODAKA
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2010 年 15 巻 4 号 p. 149-154

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Compact Dry X-SA (CD-XSA), a ready-to-use and self-diffusible dry medium sheet culture system for the detection and enumeration of Staphylococcus aureus, was evaluated. A total of 50 S. aureus strains, which were studied for the inclusivity study, grew as blue-colored colonies on the CD-XSA. When 114 bacteria other than S. aureus and 3 yeasts were inoculated for the exclusivity study, 37 strains produced white colonies, and 4 strains produced blue colonies, and 3 strains produced magenta colonies, while 73 other strains failed to grow. The CD-XSA method was compared with the mannitol salt agar with egg yolk (MSEY) method, the Baird-Parker agar (BP) method and the 3M PetrifilmTM STX (3M-STX) method in 105 artificially contaminated food samples. The correlation coefficients between CD-XSA and MSEY, CD-XSA and BP, and CD-XSA and 3M-STX were 0.945, 0.960 and 0.977, respectively

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© 2010 The Society for Antibacterial and Antifungal Agents, Japan
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