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- Title
The effect of spray washing on the development of bacterial numbers and storage life of lamb carcases.
- Authors
Kelly, C.A.; Lynch, B.; McLoughlin, A.J.
- Abstract
Total bacterial numbers at the most highly contaminated sites on lamb carcases (in the crutch region and adjacent to the abdominal incision) were significantly reduced to log10 3.3/cm2 when spray washed with unchlorinated water at 80°C and to log10 2.8 when water at 80°C containing 450 μg/ml chlorine was used, whereas numbers on carcases which were cloth cleaned or spray washed with water at 10°C remained at approximately log10 4.0. During refrigerated storage, however, carcases treated by all methods developed similar numbers of bacteria and had the same storage life, evidently because spray washing did not affect numbers of bacteria on the diaphragm. Although initial numbers of bacteria at this site were low (log10 2.9), their numbers, and also the amount of slime, increased more rapidly there than at other sites. In addition, spray washing did not significantly affect numbers of Pseudomonas spp or Brochothrix thermosphacta, which accounted for <1% of the microflora after slaughter at each site but whose numbers were between log10 6.1 and 7.5/cm2 when carcases were rejected as spoiled.
- Publication
Journal of Applied Microbiology, 1982, Vol 53, Issue 3, p335
- ISSN
1364-5072
- Publication type
Article
- DOI
10.1111/j.1365-2672.1982.tb01280.x