Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
권호 표지

Quality Characteristics of Bread Made with Flour Partly Substituted by Lotus Leaf Powder

연잎 분말 첨가 식빵의 품질 특성

  • Park, Sang-Ha (Department of Food Science and Nutrition, Kyungpook National University) ;
  • Chang, Kyung-Hi (Department of Food Technology & Food Service Industry, Yeungnam University) ;
  • Byun, Gwang-In (Department of Food Technology & Food Service Industry, Yeungnam University) ;
  • Kang, Woo-Won (Department of Food Science and Nutrition, Kyungpook National University)
  • 박상하 (경북대학교 식품영양학과) ;
  • 장경희 (영남대학교 식품외식학부) ;
  • 변광인 (영남대학교 식품외식학부) ;
  • 강우원 (경북대학교 식품영양학과)
  • Published : 2009.02.28
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Abstract

Bread made after replacement of commercial hard wheat flour with lotus leaf flour (2.5 - 7.5%, w/w) was tested for dough and baking qualities, and by sensory evaluation. The loaf volumes of bread baked with 5% and 7.5% lotus leaf flour were 87% and 80%, respectively, of control (wheat flour only); by contrast, the volume of bread baked with 2.5% lotus leaf flour was 5% greater than control. The hardness of breadcrumbs baked with 2.5% lotus leaf flour was 64.5 g on day 0, and compared with control bread, hardness increased more slowly during storage for 3 days when 5% or 7.5% lotus leaf flour was used. Moreover, dough hardness increased with increasing levels of lotus leaf flour. Lightness decreased with addition of lotus leaf flour, but redness and yellowness significantly increased, in proportion to lotus leaf flour levels. Sensory tests on 2.5% lotus leaf flour bread showed no significant difference compared with control.

제빵용 시판 강력분에 연잎 분말을 첨가한 건강 기능성 식빵 제조를 위하여 연잎 분말의 첨가량을 2.5%-7.5%로 변화시키면서 반죽에 대한 물성, 식빵의 저장성, 제빵적성 및 관능적 특성을 조사하였다. 식빵의 비용적은 연잎 분말 2.5% 첨가구에서 약 5%의 증가를 보였으나 연잎 분말 5%, 7.5% 첨가구의 경우는 각각 대조구의 87%, 80%에 상당하는 비용적을 나타내어 연잎 분말의 첨가량이 증가할수록 식빵의 비용적은 감소하는 경향을 나타내었다. 연잎 분말을 첨가하여 제조한 식빵의 저장성 실험에서 제빵 직후의 빵 crumb의 경도는 연잎 분말 2.5%첨가구에서 64.5으로 가장 부드러운 결과를 나타내었으며 저장에 따른 노화의 속도도 가장 억제된 것으로 나타났다. 그러나 5%이상 첨가시 연잎 분말 첨가량이 증가할수록 빵 crumb의 경도도 증가 하는 것을 알 수 있었다. 반죽의 경도값은 연잎 분말의 첨가와 비례하여 첨가량이 증가할수록 경도값도 증가하는 경향을 나타내었다. 연잎 분말의 첨가에 의해 변화하는 빵내부의 색도를 측정한 결과에서는 L값은 연잎 분말 첨가에 의해 감소하는 경향을 나타내었으나 a값과 b값은 증가하는 경향을 나타내었다. 관능검사의 결과 전체적인 기호도에서는 대조구와 연잎 분말 2.5% 첨가구 시료간의 유의적 차이는 없었으나 맛에서 대조구의 기호도가 높은 것으로 나타났다(p<0.05). 이상의 연구에서 조직감, 관능적 특성의 결과를 종합해 볼 때 2.5%정도의 연잎 분말 첨가 식빵의 제빵적성이 가장 우수한 것으로 사료된다.

Keywords

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