Abstract
A newly developed rapid microbial ATP bioluminescence test (R-mATP) was shown to be an adequate means to assay the microbial load of poultry carcasses. This assay utilizes differential extraction and filtration to separate somatic from microbial ATP in a very rapid timeframe. The assay requires approximately 5 min to complete; approximately 3.5 min to sample and 90 s analytical time. Correlation coefficient (r) between aerobic colony counts and R-mATP test results (n=329) was 0.82. Post-test probabilities to correctly classify carcasses with different levels of microbial contamination were as high as 98% for samples of > or = 3.5 log aerobic CFU per ml. Given the rapidity of this assay, the R-mATP holds potential for monitoring the microbial load of carcasses at poultry-processing critical control points. Other potential applications of this new version of the microbial ATP bioluminescence test are discussed.
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