Effect of animal by-products composting process on the inactivation of indicator bacteria

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

Abstrakty

EN

Indicator bacteria of the genera Escherichia, Salmonella, and Streptococcus were introduced into the biomass animal by-products composted in a bioreactor. Two different carriers were used - meat carriers (pieces of meat placed in the wire mesh) and plexiglass carriers (tubes filled with minced meat). The inactivation rate of the tested bacteria was the main criterion of the sanitary effectiveness of the composting process. Two experimental cycles were conducted. A high efficiency of the composting process during the first cycle, where temperature reached 68°C and all indicator microorganisms were eliminated within 30 h, was demonstrated. After 161 h of the second cycle, the inactivation of the tested bacteria proceeded much slower and their theoretical survival ranged from 236 to over 1,000 h.

Słowa kluczowe

EN

Escherichia; Salmonella; Streptococcus; animal food product; animal origin waste; biomass; composting process; inactivation; indicator bacteria; meat industry; meat processing plant; zoonosis

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 2011
• Tom: 55
• Numer: 1
• Opis fizyczny: p.45-49,ref.

Twórcy

autor

Paluszak Z.

• Department of Microbiology, Faculty of Agriculture and Biotechnology, University of Technology and Life Sciences, 85-029 Bydgoszcz, Poland

autor

Bauza-Kaszewska J.

autor

Skowron K.

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