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Quality Characteristics of Bread with Persimmon Peel Powder

감 과피 분말을 첨가한 식빵의 품질특성

  • Shin, Dong-Sun (Department of Food Science and Culinary Management, Kyonggi University) ;
  • Park, Hye-Young (Department of Agrofood Resources, Rural Development Adminstration) ;
  • Kim, Myung-Hee (Department of Food Science and Culinary Management, Kyonggi University) ;
  • Han, Gwi-Jung (Department of Agrofood Resources, Rural Development Adminstration)
  • 신동선 (경기대학교 외식조리관리학과) ;
  • 박혜영 (농촌진흥청 농식품자원부) ;
  • 김명희 (경기대학교 외식조리관리학과) ;
  • 한귀정 (농촌진흥청 농식품자원부)
  • Published : 2011.10.31

Abstract

This study was performed to evaluate the physiological and sensory properties of breads with different ratios of persimmon peel. Moisture activation of the bread loaf decreased as storage period increased with a smaller range of decrease in the persimmon peel added group. The amount of weight increased, and volume fell to some degree. Adding persimmon peel increased the RVA temperature, whereas maximum decreased. The color change during storage was due to the addition of control and 4% in group a values except there was no significant difference. As the result of measurements using a texture analyzer, hardness, springiness, cohesiveness, gumminess, and chewiness properties decreased. The sensory test results revealed that the 4% and 6% added persimmon peel bread was the best.

본 연구는 곶감의 부산물인 감 과피를 효율적으로 이용하기 위하여 감 과피 첨가에 따른 제빵적성과 품질특성을 조사하여 감 과피의 식품에의 적용 가능성을 알아보고자 하였다. 감 식빵 제조는 감 과피를 열풍건조기(50$^{\circ}C$, 48 hr)로 완전히 건조 한 후 분쇄한 후 20 mesh로 분말화하였으며 감 과피 첨가비율은 0, 4, 6 및 8%으로 하였다. 감 과피 식빵의 수분활성도를 측정한 결과 저장기간이 증가할수록 모두 수분손실로 감소하였으며 대조군 보다 처리군의 감소의 폭이 좁았다. 식빵의 무게는 첨가량이 증가함에 따라 증가하였으며 부피는 대조군과 첨가군 모두에서 조금 작아지는 경향을 보였다. RVA를 측정한 결과 점도의 특성에서 호화온도는 대조군이 가장 낮았고 최고점도, 최저점도, 강하점도는 대조군에 비해 감 과피 첨가 비율에 따라 감소하는 경향이었다. 색도의 변화에 있어서는 감 과피 첨가 비율이 증가할 수록 L값은 점차 낮아졌으며 a값 및 b값은 오히려 증가하였다. 텍스처의 변화는 경도, 탄력성, 응집성, 점착성 및 씹힙성 모두에서 감 과피 첨가 비율이 증가할수록 높은 값을 나타내었으나 대조군보다는 낮은 값을 나타내었다. 관능검사를 조사한 결과 감 과피의 특유의 질감으로 대조군에 비해 씹힘성과 씹은 후 이물감 항목에서 낮은 평가를 받았으나 보통 이상의 점수를 받아 이용성이 가능할 것으로 나타났다. 그 외 항목인 색, 향미, 촉촉한 정도, 맛, 종합적인 기호도에서는 대조군에 비해 감 과피 첨가군이 더 높은 점수를 받았다. 전반적으로 감 과피 4%와 6% 첨가군에서 높게 평가되어 감 과피를 식빵에 첨가 할 경우 감 과피 4~6% 첨가하는 것을 가장 선호하는 것으로 나타났다.

Keywords

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