Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Quality Characteristics of Seasoned Pork with Fermented Oenothera biennis Juice

달맞이꽃 발효액 첨가 양념 돈육의 품질 특성

  • Ahn, Yoo-Bok (Department of Food Science & Technology, Catholic University of Daegu) ;
  • Park, La-Young (Department of Food Science & Technology, Catholic University of Daegu) ;
  • Lee, Shin-Ho (Department of Food Science & Technology, Catholic University of Daegu)
  • 안유복 (대구가톨릭대학교 식품공학과) ;
  • 박나영 (대구가톨릭대학교 식품공학과) ;
  • 이신호 (대구가톨릭대학교 식품공학과)
  • Received : 2016.03.14
  • Accepted : 2016.05.27
  • Published : 2016.07.31
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Abstract

The quality characteristics of seasoned pork with sauces containing different concentrations of fermented Oenothera biennis juice such as 5% (5-SP), 10% (10-SP) and 15% (15-SP) during storage for 15 days at $10^{\circ}C$ were investigated. The pH level decreased after storage for 6 days and pH 4.83~4.90 after storage for 15 days in all tested seasoned pork. The titratable acidity increased significantly after 6 days but did not show significant differences between seasoned pork. The total bacteria of seasoned pork were $10^7CFU/g$ (control) and $10^6CFU/g$ (5-SP and 10-SP) after storage for 9 days. The total bacteria showed a lower 1~2 log cycle in seasoned pork with fermented Oenothera biennis juice compared to control. The volatile basic nitrogen contents of seasoned pork were 18.02 mg% (control), 15.41 mg% (5-SP), 14.47 mg% (10-SP), and 17.51 mg% (15-SP) after storage for 15 days at $10^{\circ}C$, respectively. The a value (red) of pork seasoned with fermented Oenothera biennis juice was higher than that of control and decreased during storage. Cooking loss and water holding capacity of 5-SP and 10-SP were better than those of control and 15-SP during storage. The 5-SP showed the best sensory score in taste (4.00), color (4.00), flavor (3.91), and overall acceptability (4.09) among various seasoned pork groups.

달맞이꽃 발효액을 식품소재로써 활용 가능성을 모색하기 위해 달맞이꽃 발효액 5%(5-SP, seasoned pork), 10%(10-SP), 15%(15-SP)를 첨가한 소스로 제조한 양념 돈육을 $10^{\circ}C$에서 저장하면서 품질 특성을 비교하였다. pH는 저장초기 6.09에서 대조구와 5-SP, 10-SP, 15-SP 등 모든 시험구에서 저장 6일 이후부터 감소하여 저장 15일째 pH 4.83~4.90 범위를 나타내었다. 산도는 처리구별 뚜렷한 차이는 없었으나 모든 처리구에서 저장 6일 이후부터 뚜렷하게 증가하였다. 총균수는 저장 9일째 대조구 $10^7CFU/g$보다 5-SP와 10-SP는 $10^5CFU/g$을 나타내어 약 1~2 log cycle 억제되는 경향을 나타내었다. 휘발성 염기태질소 함량은 저장 초기 7.70 mg%에서 저장 12일째에 대조구 17.65 mg%, 5-SP 12.61 mg%, 10-SP 12.62 mg%를 나타내었다. 가열 감량은 저장 15일째 대조구 44.98%, 5-SP, 10-SP는 각각 37.66%, 38.59%로 달맞이꽃 발효액 첨가 소스로 처리한 양념 돈육이 우수하였다. 적색도는 달맞이꽃 발효액 첨가 소스로 제조한 양념 돈육이 대조구에 비해 유의적으로 높았으며, 저장기간 동안 감소하였다(P<0.05). 관능검사 결과 맛, 색, 풍미, 종합적 기호도에서 5-SP가 각각 4.00, 4.00, 3.91, 4.09로 가장 높은 기호도를 나타내었다.

Keywords

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