Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Physicochemical and sensory characteristics of cookies with added purple kohlrabi powder

자색 콜라비 분말을 첨가한 쿠키의 이화학적 및 관능특성

  • Received : 2014.09.02
  • Accepted : 2014.10.27
  • Published : 2014.12.30
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Abstract

In this study, the quality characteristics of cookies with added purple kohlrabi (Brassica oleracea var. gongylodes) powder were investigated and analyzed through chemical and sensory evaluation. Samples were prepared with different levels (0, 1, 3, and 5%) of freeze-dried kohlrabi powder. The addition of Kolarbi powder decreased the moisture and fat contents, but the ash content was significantly increased (p<0.05). The pH and density of the cookie dough decreased significantly with the increasing levels of kohlrabi powder added (p<0.05). The spread ratio of the cookies generally decreased as more kohlrabi powder was added, but the decrease was not statistically significant. The hardness of the cookies increased significantly, however, with the increasing levels of kohlrabi powder added (p<0.05). The Hunter's color L, a, and b values significantly decreased with increasing kohlrabi powder compared to those of the control (p<0.05). In the sensory evaluation, the cookies to which 3 and 5% kohlrabi powder were added showed remarkably higher values for color, taste and appearance. These results suggest that purple kohlrabi powder is a good ingredient for improving the sensory and quality characteristics of cookies.

본 연구는 자색 콜라비를 이용한 쿠키의 개발로 콜라비의 활용방안을 증진시킬 목적으로 콜라비 분말을 첨가하여 제조한 콜라비 쿠키의 관능검사 및 품질 특성을 평가하였다. 콜라비 쿠키의 일반성분 분석 결과 수분, 조단백질, 조지방 함량은 콜라비 분말 첨가량이 증가할수록 감소하는 경향이었다. 반죽의 pH와 밀도는 콜라비 분말 첨가 함량이 증가할수록 유의적으로 낮아지는 경향을 보였다. 콜라비 쿠키의 퍼짐성 지수는 콜라비 분말을 첨가하지 않은 대조군이 가장 컸으며, 콜라비 분말 첨가 함량이 증가할수록 작아지는 경향이었으나 유의적인 차이가 없었다. 쿠키의 색도는 콜라비 분말 첨가 함량이 증가할수록 대조군에 비해 명도(L값), 적색도(a값), 황색도(b값)은 유의적으로 감소하였다. 콜라비 쿠키의 경도는 콜라비 분말 첨가량이 증가할수록 유의적으로 증가하였다. 관능검사 결과 쿠키의 향, 질감 및 전체적인 기호도는 시료 간에 유의적인 차이가 없었으나, 쿠키의 색, 맛 및 외형은 콜라비 분말을 3%와 5%를 첨가한 군의 기호도가 높게 나타났다. 본 연구결과 쿠키제조 시 콜라비 분말 첨가는 품질특성에 영향을 미쳤으며, 관능 특성을 향상시키는 것으로 사료된다.

Keywords

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