The Korean Journal of Food And Nutrition (한국식품영양학회지)

The Korean Society of Food and Nutrition (한국식품영양학회)
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Changes in Quality Characteristics of Pork Rectum by Addition of Maesil (Prunus mume Sieb. et Zucc.)

매실의 첨가가 돼지 막창의 저장특성에 미치는 영향

  • Oh, Nam-Goong (Dept. of Food Science & Technology, Korea National University of Transportation) ;
  • Jeong, Jae-Hyun (Dept. of Food Science & Technology, Korea National University of Transportation) ;
  • Choi, Ung-Kyu (Dept. of Food Science & Technology, Korea National University of Transportation)
  • 오남궁 (한국교통대학교 식품공학과) ;
  • 정재현 (한국교통대학교 식품공학과) ;
  • 최웅규 (한국교통대학교 식품공학과)
  • Received : 2013.03.11
  • Accepted : 2013.09.04
  • Published : 2013.09.30
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Abstract

This study was conducted to investigate the quality change of pork rectum by addition of maesil. pH of the pork rectum was decreased by the addition of maesil in a dose dependent manner. The changes in the L and a color values of both raw pork rectum and cooked pork rectum by storage were negligable. The b color value of raw pork rectum was certainly increased in the early stage of storage. The b value of cooked pork rectum, which was slightly dropped by addition of maesil, was decreased as storage progressed. In both raw and cooked pork rectum, thiobarbituric acid value (TBA) was significantly decreased in a dose dependent manner up to 5% addition of maesil. The volatile basic nitrogen (VBN) content in the ground pork rectum was conspicuously decreased by the addition of maesil. Consequently, the storage time of both raw and cooked pork rectum was extended more than 4 days by the 5% addition of maesil.

본 연구에서는 매실의 첨가에 따른 돼지막창의 품질특성 변화를 확인하였다. 가열하지 않은 막창(생막창)과 $100^{\circ}C$에서 10분 동안 가열한 막창(가열막창)의 pH는 매실의 첨가에 따라 낮아졌다. L값과 a값은 생막창과 가열막창 모두 저장기간에 따른 변화는 미미한 것으로 확인되었다. 생막창의 b값은 저장 초기에는 매실의 첨가에 따른 상승이 확연하였으나, 저장기간이 지속됨에 따라 그 차이가 점점 줄어들었다. 가열막창의 b값은 매실의 첨가에 따른 b값이 약간 낮아졌으며, 저장기간에 따라 약간 감소하는 경향을 나타내었다. ${\delta}T$ 값은 생막창과 가열막창 모두 L값과 거의 유사한 패턴을 보였다. 생막창과 가열막창 모두에서 TBA가는 매실의 첨가농도에 비례하여 유의적으로 낮아졌으며, 매실 5% 첨가구와 10% 첨가구는 거의 TBA가에서 차이가 없었다는 것으로 확인되었다. VBN가는 매실을 첨가할 경우 생막창과 가열막창 모두에서 VBN의 증가속도는 대조구에 비해서 낮은 것으로 확인되었다. 저장 6일째부터 매실의 첨가농도에 비례하여 VBN가가 낮아졌으며, 매실을 5% 첨가할 경우 저장을 4일 이상 지연시킬 수 있는 것으로 확인되었다.

Keywords

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