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 and Antioxidant Activities of Yaksik Containing Various Amount of Turmeric (Curcuma longa L.) Powder

강황 분말을 첨가하여 제조한 약식의 품질 특성 및 항산화 활성

  • Min, Sook Hee (Department of Nutrition and Culinary Science, Hankyong National University) ;
  • Hwang, Eun-Sun (Department of Nutrition and Culinary Science, Hankyong National University)
  • 민숙희 (한경대학교 영양조리과학과) ;
  • 황은선 (한경대학교 영양조리과학과)
  • Received : 2016.09.30
  • Accepted : 2017.01.21
  • Published : 2017.02.28
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Abstract

The objective of this study was to determine the quality characteristics and antioxidant activities of Yaksik prepared with different amounts of turmeric powder. Turmeric powder was incorporated into Yaksik at different levels containing 1.7, 2.8, and 3.9% based on the total weight of ingredients. Moisture contents of Yaksik were 41.45~44.93% and increased with higher amount of turmeric powder. Ash and crude lipid contents did not show any significant differences between control and samples. The control group showed higher sweetness and lower pH than the other groups, and sweetness decreased and pH increased upon addition of turmeric powder. In the chromaticity determination, L value decreased while a and b values increased as turmeric powder increased. The total polyphenol and flavonoid contents proportionally increased with levels of turmeric powder. The antioxidant activities measured by DPPH and ABTS radical scavenging activities as well as reducing power were significantly higher than those of the control and proportionally increased as turmeric powder increased. In the sensory evaluation, control and Yaksik made with 1.7% addition of turmeric powder showed the highest preference in terms of color, taste, texture, and overall acceptance. These results suggest that turmeric powder may be a useful ingredient in Yaksik to improve quality and sensory properties.

본 연구에서는 강황 분말의 첨가 비율을 달리하여 약식을 제조하고 이화학적 품질 특성 및 항산화 활성을 분석하였다. 약식의 수분함량은 41.45~44.93%로 대조군에 비해 실험군이 높게 나타났으며, 강황 함량에 비례하여 수분함량이 증가하는 경향을 나타냈다. 회분과 조지방 함량은 대조군과 실험군 사이의 유의적인 차이는 나타나지 않았다. 조단백질 함량은 대조군과 강황 분말 2.8% 첨가군이 다른 실험군보다 높게 나타났으며, 이는 약식에 첨가한 부재료의 특성 때문으로 생각한다. 강황 분말을 첨가하지 않은 대조군의 pH가 5.83으로 가장 낮았고, 강황 분말 첨가량이 증가함에 따라 pH도 증가하는 경향을 보였다. 당도는 강황 분말 함량이 증가함에 따라 감소하였다. 약식의 색도를 측정한 결과, 강황 분말 함량이 증가함에 따라 L값은 감소하였고, a값과 b값은 증가하였다. 조직감의 경우, 강황 분말의 첨가량에 비례하여 약식의 경도, 탄성, 검성, 탄력성 및 씹힘성은 감소하였으나, 부착성과 응집성은 강황 분말 함량에 따른 통계적인 유의성은 나타나지 않았다. 약식의 총폴리페놀과 총플라보노이드 함량은 약식에 첨가한 강황 분말 함량에 비례하여 증가하는 경향을 나타냈다. DPPH와 ABTS 라디칼 소거능 및 환원력은 강황 분말 첨가군이 대조군에 비해 높게 나타났고, 강황 분말 첨가량이 증가할수록 항산화 활성도 증가하였다. 관능평가에서 맛, 색, 질감 및 전반적인 기호도 평가에서는 대조군과 강황 분말을 1.7% 첨가한 약식이 가장 선호도가 높은 것으로 나타났다. 이상의 결과를 통하여 강황은 항산화 활성이 우수한 소재이며, 강황 분말을 첨가하여 약식을 제조할 때 첨가하는 적정 수준은 전체 중량 대비 1.7% 수준이 가장 적절할 것으로 생각한다.

Keywords

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