Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Changes of Physicochemical and Sensory Characteristics in the Codonopsis lanceolata Saengsik, Uncooked Food by Different Drying Methods

건조방법 달리하여 제조한 더덕 생식의 이화학적 및 관능적 특성 변화

  • Jin, Tie-Yan (Department of Food Science and Engineering, Yanbian University) ;
  • Quan, Wu-Rong (Department of Food Science and Engineering, Yanbian University) ;
  • Wang, Myeong-Hyeon (School of Biotechnology, Kangwon National University)
  • 김철암 (중국 연변대학교 농학원 식품과학과) ;
  • 권오영 (중국 연변대학교 농학원 식품과학과) ;
  • 왕명현 (강원대학교 BT특성화학부대학 생명공학부)
  • Published : 2008.12.31
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Abstract

Changes in the physicochemical and sensory characteristics of the uncooked food, Codonopsis lanceolata saengsik, were investigated to determine an efficient drying method, one of the most important manufacturing processes in the preparation of C. lanceolata saengsik. No changes in the proximate compositions of all samples were observed during hot-air drying at 50 and $60^{\circ}C$ and freeze-drying. The L value in the freeze-dried sample was higher than that in the hot-air dried samples, whereas the b value in the freeze-dried sample was reduced. Dietary fiber content in the hotair dried samples were higher than that in the freeze-dried sample, whereas the total phenolic compounds and crude saponin contents were lower than those in the freeze-dried sample. The highest overall acceptability values in the sensory test for color, flavor, taste, and overall acceptability were 5.63, 5.45, 5.75, and 5.85, respectively. In conclusion, the freezedrying method was the most favorable of the tested method for the manufacture of C. lanceolata saengsik.

더덕을 생식 원료로 동결건조 및 열풍건조를 통하여 생식을 제조하여 제조된 생식의 이화학적 및 관능적 특성, 기능성 성분의 함량 조사를 통하여 합리한 제조방법을 찾고자 하였다. 수분, 단백질, 탄수화물, 지방, 회분 등 일반성분 함량은 동결건조 및 열풍건조를 실시한 시험구들 사이에 변화가 없는 것으로 나타났고 색도는 동결건조는 실시한 시험구가 열풍건조를 실시한 시험구에 비해 L값은 높게, b값은 낮게 나타났다. 식이섬유 함량은 열풍건조를 실시한 시험구가 동결건조를 실시한 시험구보다 높게 나타났고 총 페놀성 화합물과 조 사포닌 함량은 동결건조를 실시한 시험구가 높게 나타났다. 관능검사 결과 동결건조를 실시한 시험구가 색, 맛, 향, 전체적 기호도 등에서 모두 열풍건조를 실시한 시험구 보다 높게 나타났다. 위의 결과로부터 더덕을 원료로 생식을 제조 시 동결건조 방법을 사용하는 것이 적절하다고 생각된다.

Keywords

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