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http://dx.doi.org/10.5187/JAST.2002.44.3.351

Microbiological and Sensory Characteristics of Vacuum Packed Korean Chilled Pork Loins for Export  

Choi, Y.S. (Livestock Bureau, Ministry of Agriculture and Forestry)
Park, B.Y. (National Livestock Research Institute, RDA)
Lee, J.M. (National Livestock Research Institute, RDA)
Kim, I.S. (Korea Meat Trade Association)
Lee, S.K. (Department Animal Food Science and Technology, Kangwon National University)
Kim, B.C. (Department of Food Science, Korea University)
Publication Information
Journal of Animal Science and Technology / v.44, no.3, 2002 , pp. 351-360 More about this Journal
Abstract
The Korean fresh pork loins in vacuum packaged were obtained from three different Korean export companies and investigated for microbiological and sensory properties. The fresh pork loins were stored at 2$^{\circ}C$ for 50 days and analyzed with an interval of 5$\sim$10 days. The results were as follows: The overall numbers of total plate counts and coliform bacteria were higher in swab method than in meat sampling method. The total plate counts in the loins from the company I were maintained low levels ($\prec$10$^5$ cfu/$cm^2$ or $\prec$10$^5$ cfu/g) for entire storage periods(50 days at 2$^{\circ}C$), whereas the loins from the company III had high levels when they were compared to the domestic standard for the allowance limit. The samples from the company III showed that total plate counts were over 106 after about 30 days when determined by meat sampling method and total plate counts were over 106 after 15 days when determined by swab method. The overall numbers of coliform bacteria were also significantly lowest in the samples from the company I, whereas they were highest in the company III. Therefore, all meat companies will have to make an effort to prevent bacterial contamination in each stage such as slaughtering, marketing and consumer in order to ensure the production of safe meat and the extension of shelf-life. For fresh products, scores of intramuscular fat were higher in samples form the companies II and III than those from the company I when visibly evaluated with the standard. There were no significant differences in scores of meat color, drip and fresh meat flavor. However, the samples from the company I had the lowest score of off-flavor and highest score of overall acceptability. For cooked products, there were no significant differences in meat flavor, off-flavor, juiciness and overall acceptability.
Keywords
Fresh pork loins; Microbiological and sensory characteristics;
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