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Effects of Packaging Methods on the Quality of Korean style Beef and Pork Jerky During storage  

Choi, Yun-Sang (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Jeong, Jong-Youn (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Choi, Ji-Hun (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Han, Doo-Jeong (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Kim, Hack-Youn (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Lee, Mi-Ai (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Paik, Hyun-Dong (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Kim, Cheon-Jei (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
Publication Information
Korean journal of food and cookery science / v.23, no.5, 2007 , pp. 579-588 More about this Journal
Abstract
The effects of packaging methods on the quality of beef and pork jerky samples prepared Korean- style were investigated in terms of their pH, water activities ($A_w$), thiobarbituric acid (TBA) values, total bacterial counts, and sensory evaluations during storage at room temperature ($25^{\circ}C$ for 90 days. The jerky was subjected to plastic packaging and vacuum packaging conditions at $25^{\circ}C$ Levels of pH slightly decreased during storage (p<0.05), but there was no significant difference between the packaging methods. (p>0.05) Also, water activity decreased as storage time passed (p<0.05), and vacuum packaging resulted in a higher water activity value than plastic packaging. The hardness value of the jerky in plastic packaging was higher than that in vacuum packaging (p<0.05). In addition, hardness and TBA increased over the storage periods (p<0.05). The total bacterial counts in of the vacuum packaged jerky were lower than those of the plastic packaged jerky. The vacuum packaging treatments had higher scores than the plastic packaging treatments for all sensory traits. Based on our findings, we conclude that vacuum packaging is a more effective storage method than plastic packaging for jerky.
Keywords
Jerky; Packaging methods; Vacuum packaging; Storage condition;
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Times Cited By KSCI : 9  (Citation Analysis)
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