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The effect of variation of thermal processing on the microbial spoilage of chub-packed luncheon meat
- Source :
- Journal of Applied Bacteriology. 54:249-255
- Publication Year :
- 1983
- Publisher :
- Wiley, 1983.
-
Abstract
- Process pasteurization values for reference temperature 70 degrees C (P70) were calculated from the temperature profiles of 250 g luncheon meat chubs cooked under experimental conditions. A simple equation relating Process P70-value and the time and temperature of cooking was derived. With minimal cooking (P70 = 40) the surviving microflora (10(3)/g) wad dominated by species of Lactobacillus, Brochothrix and Micrococcus. These organisms were destroyed by more intensive cooking (P70 = 105), leaving a flora (10(2)/g) composed of Bacillus and Micrococcus species. The spoilage that developed after 14 d storage at 25 degrees C reflected the severity of the heat treatment received by each chub: with P70 between 40 and 90, a Streptococcus spoilage sequence occurred; with P70 between 105 and 120, a Bacillus/Streptococcus spoilage sequence occurred; with P70 of 135 and above, a Bacillus spoilage sequence occurred. Cooking to a P70 = 75 was adequate to reduce the surviving microflora to the 10(2)/g level associated with current good manufacturing practice.
- Subjects :
- Brochothrix
Hot Temperature
Meat
Time Factors
Food Handling
Food spoilage
Pasteurization
Micrococcus
Bacillus
chemical and pharmacologic phenomena
Biology
Applied Microbiology and Biotechnology
Microbiology
law.invention
Micrococcus species
law
Food Preservation
Lactobacillus
Food science
Bacteria
Luncheon meat
Streptococcus
food and beverages
hemic and immune systems
biology.organism_classification
Meat Products
Food Microbiology
lipids (amino acids, peptides, and proteins)
Subjects
Details
- ISSN :
- 00218847
- Volume :
- 54
- Database :
- OpenAIRE
- Journal :
- Journal of Applied Bacteriology
- Accession number :
- edsair.doi.dedup.....d8e8642888e8829a4e240ec8f5169683
- Full Text :
- https://doi.org/10.1111/j.1365-2672.1983.tb02614.x