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Evaluation of alternative sampling methods for Salmonella critical control point determination at broiler processing
L L Sarlin1, E T Barnhart, D J Caldwell
1Department of Poultry Science, Texas Agricultural Experiment Station, College Station 77843, USA.
Poultry Science
|August 26, 1998
Summary
Detecting Salmonella on broiler carcasses is crucial. Skin sampling is as effective as carcass rinsing and may be a viable alternative for Salmonella detection, with cross-contamination occurring post-evisceration.
Area of Science:
- Food Safety
- Microbiology
- Poultry Science
Background:
- Salmonella contamination in poultry is a significant food safety concern.
- Effective detection methods are vital for controlling Salmonella in broiler processing.
Purpose of the Study:
- To compare the sensitivity of different Salmonella sampling methods on broiler carcasses.
- To investigate the impact of processing stages on Salmonella recovery rates.
- To identify critical control points for Salmonella cross-contamination.
Main Methods:
- Comparison of swab, skin, and carcass rinse sampling techniques for Salmonella detection.
- Evaluation of Salmonella recovery following specific processing steps like crop removal and immersion chilling.
Main Results:
- Swab cultures were significantly less effective for Salmonella detection than skin or carcass rinses.
- Skin and carcass rinse methods demonstrated comparable sensitivity for Salmonella detection.
- Salmonella recovery increased significantly after feather removal, crop removal, and post-immersion chilling.
Conclusions:
- Culture of skin samples from the thoracic inlet is a potentially effective alternative to whole carcass rinsing for Salmonella detection.
- Significant Salmonella cross-contamination occurs after evisceration, with immersion chilling identified as a potential major cross-contamination site.