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Chilling tanks effectiveness on the reduction of bacterial contamination of poultry carcasses/
Eficácia dos tanques de pré-resfriamento na redução de contaminação bacteriana em carcaças de frango

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Author(s): Juliana Arena Galhardo | Melissa Lopes | Juçara Tinasi de Oliveira | Ronaldo Tamanini | Samuel Fabre Sanches | Julio Cesar de Freitas | Ernst Eckehardt Müller

Journal: Semina : Ciências Agrárias
ISSN 1676-546X

Volume: 27;
Issue: 4;
Start page: 647;
Date: 2006;
Original page

Keywords: Coliformes | Aeróbios mesófilos | Psicrotróficos | Qualidade dos alimentos.

ABSTRACT
The aim of this research was to evaluate the chilling tanks effectiveness on the reduction of microbial contamination of poultry carcasses from an abattoir, from March to September 2005. Poultry samples were taken in three times, in the beginning, middle and in the end of morning turn, in a total of 60 samples, 20 in each sampling time before the entrance in the chilling tank and other 60 samples, 20 in each sampling time after the exit of the chilling tank. Poultry samples were tested to total coliforms (CT), thermotolerant coliforms (CTT), mesophilic aerobes (AM) and psychrotrophic microorganisms (MP). For CT and CTT research were used the multiple tube fermentation technique, for AM were usedPetrifilm™C system and for MP Plate Count Agar. The higher mean of the Most Probable Number of CT and CTT (3,83 log MPN/g and 3,78 log MPN/g) and AM and MP counts (6,61 log UFC/g and 4,58 log UFC/g) on poultry carcasses occurred in the first time of sampling, before the entrance in the pre-chiller tank.There was a significant (p
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