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Comparison of the Quality Characteristics of Korean Native Black Pork and Modern Genotype Pork During Refrigerated Storage

재래종 흑돼지육과 개량종 돼지육의 냉장저장중 품질비교

  • Kang, S.M. (Department of Animal Products and Food Science, Kangwon National University) ;
  • Liang, C.Y. (College of Agriculture, Yanbian University) ;
  • Kang, C.G. (Department of Animal Products and Food Science, Kangwon National University) ;
  • Lee, Sung-Ki (Department of Animal Products and Food Science, Kangwon National University)
  • 강선문 (강원대학교 동물식품응용과학과) ;
  • 양성운 (중국 연변대학교 농학원) ;
  • 강창기 (강원대학교 동물식품응용과학과) ;
  • 이성기 (강원대학교 동물식품응용과학과)
  • Published : 2007.02.28

Abstract

This study was carried out to compare the quality characteristics including aroma compounds and pattern of M. Biceps femoris from Korean native black pigs (70kg, 6 months, KNP) and modern genotype pigs (103kg, 6 months, Landrace×Yorkshire, MGP) during vacuum-storage at 2±0.2℃ for 12 days. KNP had high contents of crude protein and ash, but low content of moisture as compared to MGP (p<0.05). KNP showed lower pH and higher cooking loss than MGP (p<0.05) during storage. CIE a* and b* values of KNP significantly higher during storage as compared to those of MGP (p<0.05). TBARS value of KNP significantly increased after 8 days as compared to that of MGP (p<0.05). Shear force value of KNP was higher than that of MGP until 8 days (p<0.05). Volatiles by SPME-GS/MS was slightly different between KNP and MGP, but aroma pattern by electronic nose was not different. Therefore, KNP had redder and darker color, higher cooking loss and harder texture than MGP. The sensory quality of KNP was better than those of MGP (p<0.05), although aroma characteristics by instruments were not different between KNP and MGP.

Keywords

Korean native black pork;Color;Shear force;Aroma;Sensory evaluation

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