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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Antioxidant Activities and Quality Characteristics of Cookies Added with Aged Black Chestnut Inner Shell

숙성 흑율피를 첨가한 쿠키의 품질 특성 및 항산화성

  • Son, Eunjung (Department of Food & Nutrition, Chungnam National University) ;
  • Park, So Young (Department of Food & Nutrition, Chungnam National University) ;
  • Kim, Mee Ree (Department of Food & Nutrition, Chungnam National University)
  • 손은정 (충남대학교 식품영양학과) ;
  • 박소영 (충남대학교 식품영양학과) ;
  • 김미리 (충남대학교 식품영양학과)
  • Received : 2016.09.30
  • Accepted : 2017.02.10
  • Published : 2017.02.28
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Abstract

The purpose of this study was to evaluate cookies added with aged black chestnut inner shells powder (ABCI). Cookies were prepared with three different levels (0.25%, 0.5%, or 1%) of ABCI. During storage, moisture content was higher in cookies containing ABCI compared with control cookies. As the amount of ABCI increased, pH of cookies added with ABCI decreased slightly, whereas acidity increased. The lightness and yellowness in the Hunter color system of cookies with ABCI decreased during storage, whereas redness increased during storage. Higher reducing sugar was contained in cookies with ABCI than in the control. Textural properties by texture profile analysis showed that hardness and chewiness decreased with an increase in ABCI amount. Total phenol content increased in cookies with ABCI. Antioxidant activities such as diphenyl picrylhydrazyl radical and hydroxyl radical scavenging activities increased in cookies with ABCI compared with that of the control. It is concluded that cookies with ABCI may be of high quality with antioxidant activity. In the preference test, cookies added with 0.5% ABCI showed the high results in terms of overall preference and buying intention.

본 연구는 항산화성이 우수하나 버려지는 율피의 이용 증대를 위해 숙성시켜 파우더로 만든 후 쿠키에 첨가(0.25%, 0.5%, 1%)하여 품질 특성 및 항산화성을 분석하였다. 숙성 흑율피 첨가 쿠키의 수분 함량은 숙성 흑율피의 첨가량이 증가할수록 수분 함량도 같이 증가하였다. 가용성 고형물 함량과 환원당 함량은 숙성 흑율피의 첨가량이 증가할수록 높아졌다. 명도는 숙성 흑율피 첨가량이 증가할수록 낮아지는 경향을 보였으며, 적색도는 숙성 흑율피 첨가량에 따라 증가하였다. 황색도는 숙성 흑율피 첨가량에 따라 낮아지는 경향을 보였다. pH는 숙성 흑율피의 첨가량이 증가할수록 낮아졌으며 산도는 높아지는 경향을 보였다. 숙성 흑율피 쿠키의 조직감은 강도에서만 각각에 유의적이 차이를 보였으며 씹힘성에서는 유의적 차이를 보이지 않았다. 총페놀의 함량은 숙성 흑율피의 첨가량이 증가함에 따라 증가하였다. DPPH 라디칼 및 hydroxyl 라디칼 소거능은 숙성 흑율피 첨가량이 증가할수록 $IC_{50}$ 값이 낮게 나타나 항산화능이 증가하였다. 관능검사 결과 색상, 거침성, 숙성 흑율피의 이질성, 숙성 흑율피의 향, 숙성 흑율피의 맛은 숙성 흑율피의 첨가량이 증가할수록 높은 점수를 받았으며, 버터향과 단맛은 숙성 흑율피의 첨가량이 많을수록 낮게 나타났다. 기호도 특성 결과 전체적인 기호도와 구매의향은 0.5%의 숙성 흑율피를 첨가하였을 때 가장 높게 나왔다. 이상의 결과로부터 숙성 흑율피를 쿠키에 첨가 시 0.5% 수준으로 첨가하는 것이 바람직한 것으로 생각되며, 폐기하던 율피의 이용도를 증대할 수 있는 바람직한 방법이라 생각한다.

Keywords

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