Inactivation of indicator bacteria in animal by-product sanitised by CaO

• Autorzy: Paluszak Z. , Bauza-Kaszewska J.
• Języki publikacji: EN

Abstrakty

EN

The aim of the study was to evaluate a method of animal by-product disposal based on a significant increase in pH caused by the addition of quicklime. Three different doses of CaO were tested - 10%, 20%, or 25% (expressed in dry matter). The inactivation rate of indicator bacteria - Escherichia coli and faecal streptococci was the main criterion of the estimation of the process efficiency. The maximum temperature value generated inside the biomass of the 25% share of lime was 37.7°C. Addition of each CaO dose caused an increase in pH over 12. Application of the highest amount of CaO (25%) resulted in an inactivation of coliform rods within 3 h. Under similar conditions, faecal streptococci survived more than 4 h. A dose of 10% caused a rapid decline of E. coli in meat for 6 h. Streptococci were still isolated from the same samples after 24 h of liming.

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 2011
• Tom: 55
• Numer: 4
• Opis fizyczny: p.699-703,,ref.

Twórcy

autor

Paluszak Z.

• Department of Microbiology, University of Technology and Life Sciences in Bydgoszcz, 85-029 Bydgoszcz, Poland

autor

Bauza-Kaszewska J.

Bibliografia

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