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KMID : 1007520080170020389
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Food Science and Biotechnology
2008 Volume.17 No. 2 p.389 ~ p.395
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Effect of Protease Produced from Bacillus polyfermenticus SCD on Quality of Jerky
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Kim Jin-Man
Choi Ji-Hun
Han Doo-Jeong
Choi Yun-Sang
Jeong Jong-Youn
Choi Gooi-Hun
Paik Hyun-Dong
Kim Cheon-Jei
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Abstract
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The objective of this study was to examine the effects of crude protease from Bacillus polyfermenticus SCD and marination time on quality of pork and beef jerky. Neither pork nor beef jerky showed a significant difference in pH among all treatments, and each protease was found to have a greater effect on the color of beef jerky. The hardness was significantly lower in all jerky treated with each protease, however the textural properties of jerky were not significantly different with regard to marination times. Water content was not affected by protease addition or marination times, however the water activity was lower in jerky treated with protease. The rehydration capacity of pork jerky was higher in jerky treated with protease, whereas that of beef jerky was higher in jerky dried after tumbled and held for 24 hr. Sensory characteristics were higher in jerky treated with protease, not affected by holding time after marinated.
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KEYWORD
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jerky, protease, Bacillus polyfermenticus SCD, marination time
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