The aim of this study was to analyze the influence of the chilling method on meat quality and the microbiological durability of pork cuts during storage. The left half-carcasses were put through the shock tunnel and the right half-carcasses were placed directly in the chilling room. After chilling, pH measurements were taken in two muscles. The carcasses were cut, and drip loss, marbling, and color of LL muscle were estimated. The microbiological quality of meat elements was estimated according to the procedure included in the EC regulation. The total viable count tests were done after chilling, 8, 12, 14, 16, and 18 days of storing. The drip loss was higher in the group that was chilled slower. In the group of carcasses chilled quickly lower mass losses were observed. The positive effect of 226 8C in the shocking tunnel on the microbial quality of carcass and vacuum packed primal cuts was not as intensive as expected. As showed the above presented results of the study, the economic aspect of pork carcass chilling system first of all should be taken under consideration in meat production.
Practical applicationsThe study shown that very low temperatures in the shock tunnel in chilling process of the pig carcasses (e.g., 226 8C) do not bring the expected results as a significant increase in the shelf life of meat cuts and quality of meat. Therefore, it is useful to modify the regime of temperature through the use in industrial practice of higher temperatures in the shock tunnel. The economic aspect of pork carcass chilling system first of all should be taken under consideration in choosing of the chilling method.
| I N TR ODU C TI ONProviding food security during the production process is a subject of interest of many researchers and practitioners and is also a very important issue from the consumers' point of view. Extending shelf life is crucial in order to prevent financial losses which are huge because of wasting products that have short expiry dates. According to FAO data (2013) around 13 billion tons of food is wasted yearly in the world which adds up to around 750 billion dollars in losses annually. Ceuppens, van Boxstael, Westyn, and Devlieghere (2016) report, that almost 1/3 of produced food is thrown away because of the expiry of the best before date. It seems crucial to perform research which is aimed at improving food security in terms of the best practice on the production stage. In the meat industry the prevention or reduction of carcass contamination with pathogens during the slaughter process is very important because it is a crucial element that influences the quality of the final product (Loretz, Stephan, & Zweifel, 2011)
| Physical analysis of the meat quality traitsAfter chilling the carcasses pH measurements were taken in two muscles 24 hr after slaughter (pH 24 ), the carcasses were cut according to slaughterhouse regulations. Based on the pH 24 and pH 45