Changes in the physicochemical properties in pork stored in the air and controlled atmosphere
2000
Kondratowicz, J. | Bak, T. | Podlejska, Z. (Uniwersytet Warminsko-Mazurski, Olsztyn (Poland). Katedra Oceny i Wykorzystania Surowcow Zwierzecych)
Pork wrapped in thermocontractible polyethylene sheeting (PA/PE) was stored in the controlled atmosphere (95 percent N2 and 5 percent O2) and in the air at the temperature of 2 deg C for the period of 5 to 30 days. The aim of the research presented in the paper was to determine the effect of those two methods of chilled pork preservation on some of its physicochemical properties. The results of the investigation show that pork stored in controlled atmosphere for 30 days was characterized by a higher dry matter content, a lower pH level, a somewhat brighter colour and significantly better waterholding capacity, compared with pork stored in the air for 15 days. The method of preservation in the controlled atmosphere enables to extend the keeping quality of fresh pork
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