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Microflora Isolated from Imported Frozen Lean Beef Pieces 1
1Food Science and Human Nutrition Department, University of Florida, Gainesville, Florida 32611.
Journal of Food Protection
|February 24, 2019
Summary
Frozen imported lean beef samples showed consistently low microbial counts, with no detectable Clostridium perfringens or Salmonella. The predominant microbial flora included common bacteria like Pseudomonas and Staphylococcus, indicating good safety for consumption.
Area of Science:
- Food Microbiology
- Food Safety
- Meat Science
Background:
- Assessing microbial contamination in imported meat products is crucial for public health.
- Frozen lean beef is a globally traded commodity requiring rigorous safety evaluations.
Purpose of the Study:
- To evaluate the microbiological quality of frozen imported lean beef.
- To identify and quantify specific microbial contaminants and the dominant flora.
Main Methods:
- Analysis of 40 frozen beef samples from six countries.
- Testing for total aerobic counts, yeasts, molds, fecal streptococci, Staphylococcus aureus, Clostridium perfringens, coliforms (total and fecal), Escherichia coli, and Salmonella.
- Microbial flora characterization of 20 samples.
Main Results:
- Consistently low microbial counts across all tested parameters.
- Absence of detectable Clostridium perfringens and Salmonella in all samples.
- Predominant microbial flora identified as Pseudomonas, Flavobacterium, Moraxella, Acinetobacter, Corynebacterium, Micrococcus, Staphylococcus, and Lactobacillus.
Conclusions:
- The analyzed frozen imported lean beef met high microbiological safety standards.
- The identified microbial flora suggests a generally safe product with no significant pathogens detected.
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