Artigo
Effects of polyethylene film wrap on cooler shrink and the microbial status of beef carcasses
Registro en:
Meat Science, v. 100, p. 164-170, 2015.
0309-1740
10.1016/j.meatsci.2014.10.018
WOS:000347765700023
8727897080522289
Autor
Sampaio, Guilherme S. L.
Pflanzer-Junior, Sergio B.
Roca, Roberto De O. [UNESP]
Casagrande, Leandro
Bedeschi, Elaine A.
Padovani, Carlos Roberto [UNESP]
Miguel, Giulianna Z. [UNESP]
Santos, Carolina T. [UNESP]
Girao, Lucio V. C.
Miranda, Zander B.
Franco, Robson M.
Resumen
The present study evaluated the use of polyethylene film wrapping of beef half carcasses and its effects on cooler shrink, cooling characteristics and microbial status of the half carcasses. Film wrapping reduced cooler shrink by 55.2%, 43.1%, 36.0% and 30% after 24, 48, 72 and 96 h of cooling, respectively, compared to the unwrapped half carcasses, whereas the surface water activity showed no significant differences among the time periods. The wrapped half carcasses had a lower cooling rate and higher surface and internal temperatures. The highest values of the aerobic mesophiles, Staphylococcus aureus and Enterobacteriaceae were found in the half carcasses wrapped in film. No significant differences were found in the values of Escherichia con. The polyethylene film was effective in reducing cooler shrink; however, it caused a delay in cooling, thereby enabling greater microbial occurrences and counts and impairing the hygienic and sanitary conditions of the carcasses, which may be an impediment to the practical application of this technology. (C) 2014 Elsevier Ltd. All rights reserved. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) UFF, Fac Vet, BR-24230340 Rio De Janeiro, Brazil Univ Estadual Campinas, Univ Estadual Campinas, FEA, BR-13083862 Sao Paulo, Brazil Univ Estadual Paulista, Univ Estadual Paulista, FCA, BR-18610307 Sao Paulo, Brazil UNIFEB, Ctr Univ Fundacao Educac Barretos, Fac Engn Alimentos, BR-14783226 Sao Paulo, Brazil Univ Estadual Paulista, Univ Estadual Paulista, Inst Biosci, BR-18618970 Sao Paulo, Brazil UNESP, Univ Estadual Paulista, FMVZ, BR-18618970 Silo Paulo, Brazil UFU, FAMEV, Fac Med Vet, BR-38400902 Minas Gerais, Brazil Univ Estadual Paulista, Univ Estadual Paulista, Departamento de Economia, Sociologia e Tecnologia, Faculdade de Ciências Agronômicas (FCA), BR-18610307 Sao Paulo, Brazil Univ Estadual Paulista, Univ Estadual Paulista, Departamento de Bioestatística, Inst Biosci, BR-18618970 Sao Paulo, Brazil UNESP, Univ Estadual Paulista, FMVZ, BR-18618970 Silo Paulo, Brazil