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Bacteriology of Restructured Lamb Roasts Made with Mechanically Deboned Meat 1
1Animal Science Division, University Station Box 3354, University of Wyoming, Laramie, Wyoming 82071.
Abstract:
Composite samples of restructured lamb roast containing 10 or 30% mechanically deboned meat (MDM) were analyzed for bacteriological quality before and after cooking to 62.8°C (145°F). Uncooked samples had less than 3.0 × 104 colony forming units/g mesophilic and psychrotrophic aerobes and anaerobes including lactobacilli. In general, these groups, as well as coliforms and fecal coliforms, were present in higher numbers in uncooked roasts containing higher percentages of MDM. Staphylococcus aureus , Clostridium perfringens , Salmonella sp., Yersinia enterocolitica and Campylobacter jejuni were not detected in uncooked samples. Cooking reduced the number of aerobic and anaerobic spoilage bacteria and eliminated index bacteria (in 0.1 g) effectively.
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