Discussion About the Fixed Value Method of Staphylococcus aureus Reference Materials

Abstract:

To quantify the SD value of Staphylococcus aureus Reference Materials in chicken matrix，the S.aureus counting methods，the standard values and the uncertainty were analyzed in this study. As compared to the results of three different S. aureus counting methods，BP pouring counting method showed the same result with PCA counting method，The SD value of BP tablet pouring method was smaller as compared to BP tablet coating method.The BP tablet pouring counting showed good precision and reproducibility. The SD values was 275 CFU/bottles and the total uncertainty was 6，the Reference Materials constant value was (275 + 6) CFU/bottle.