Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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The Effects of NaCl on the Physicochemical Properties of DFD and Normal Pork Meat Batter

NaCl 첨가가 DFD육 및 정상육 batter의 이화학적 특성에 미치는 영향

  • Kim, Cheon-Jei (Department of Animal Products Science, Konkuk University) ;
  • Lee, Eui-Soo (Department of Animal Products Science, Konkuk University) ;
  • Jeong, Jong-Yoen (Department of Animal Products Science, Konkuk University) ;
  • Kweon, Taeg-Sang (Department of Animal Products Science, Konkuk University)
  • 김천제 (건국대학교 축산가공학과) ;
  • 이의수 (건국대학교 축산가공학과) ;
  • 정종연 (건국대학교 축산가공학과) ;
  • 권택상 (건국대학교 축산가공학과)
  • Published : 2003.04.01
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Abstract

Effects of NaCl concentration (0, 1, 2, and 3%) on the physico-chemical characteristics of dark, firm, dry (DFD) and normal meat batter were examined. Before heating, pH values of DFD and normal meat batter decreased up to 0.23 (DFD) and 0.2 (normal) units, which after heating increased up to $0.16{\sim}0.28$ and $0.17{\sim}0.23$ units, as NaCl concentration increased from 0 to 3%. Cooking loss and diameter reduction of DFD meat batter were lower than those of nomal meat batter and decreased. whereas protein solubilities and emulsion stabilities of DFD and normal meat increased, with increasing NaCl concentration. Protein solubility and emulsion stability of DFD meat were higher than those of nomal meat (p<0.05). Viscosity and hardness of DFD meat batter were higher than those of normal meat batter and increased as NaCl concentration increased from 0 to 3%.

DFD육의 가공적성과 NaCl 농도에 따른 batter의 이화학적 변화를 연구하기 위하여 NaCl 농도$(0{\sim}3%)$를 다르게 하여 DFD육 batter와 정상육 batter를 제조한 후 pH, 가열감량, 직경감소율, 단백질용해성, 유화안정성, 점도 및 경도를 조사하였다. DFD육 batter와 정상육 batter는 NaCl 농도가 0%에서 3%로 증가함에 따라 가열전 pH가 DFD육은 0.23, 정상육은 0.2 unit 감소하였으며, 가열후 batter의 pH는 정상육과 DFD육 모두 가열전에 비해 다소 증가하였다. DFD육 batter의 가열감량과 직경감소율은 정상육 batter보다 낮았으며 NaCl 농도가 증가함에 따라 감소하였다. 단백질 용해성은 DFD육과 정상육 모두 NaCl 농도가 증가함에 따라 증가하였으며 DFD육의 단백질용해성이 정상육보다 높은 것으로 나타났다. 유화안정성에 있어서 DFD육 batter는 NaCl 농도가 증가함에 따라 지방분리가 급격히 감소하였으며, 정상육 batter에 비교하여 유화안정성이 다소 우수한 것으로 평가되었다. DFD육 batter의 점도는 정상육 batter보다 높게 나타났으며 NaCl 농도가 증가함에 따라 증가하였다. 또한 DFD육 batter의 경도는 NaCl 농도가 증가함에 따라 증가하였으며, 정상육 batter보다 높았다. 본 실험의 결과를 종합해 볼 때 육제품 원료육으로서 DFD육의 이용가치는 매우 우수한 것으로 사료된다.

Keywords

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