Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Physicochemical Properties of Onion Powder Added Wheat Flour Dough

양파분말을 첨가한 빵반죽의 물리화학적 특성

  • Bae, Jong-Ho (Department of Confectionery Decoration, Daegu Mirae College) ;
  • Woo, Hi-Seob (School of Food Science, Dongju College) ;
  • Choi, Hee-Jin (Department of Food Science and Technology, Yeungnam University) ;
  • Choi, Cheong (Department of Food Science and Technology, Yeungnam University)
  • 배종호 (대구미래대학 제과데코레이션과) ;
  • 우희섭 (동주대학 식품과학계열) ;
  • 최희진 (영남대학교 식품가공학과) ;
  • 최청 (영남대학교 식품가공학과)
  • Published : 2003.06.01
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Abstract

The physiochemical properties of wheat flour dough added with onion powder were investigated. The color value of mixed onion powder was added and had low values of lightness and redness, as well as high value of yellowness. Water absorption of the wheat flour dough decreased with the increase in the onion powder. Both development time and stability of the wheat flour dough with onion powder added were less than those of the control. An increase in the added amount of onion powder resulted in an increase of weakness. The maximum viscosity gradually decreased with the increase the amount of onion powder, while the temperature of gelatination did not change. The wheat flour dough extensibility decreased, and the resistance of extension and area under the curve increased in the onion powder. It is of considerable note that the pH of the wheat flour dough decreased in the process of fermentation with an increase in the amount of onion powder.

양파분말을 첨가한 빵반죽의 제빵적성을 알아보기 위해 밀가루에 양파분말 첨가량을 달리하여 빵반죽의 물리화학적 특성을 조사하였다. 양파분말을 첨가한 혼합분의 색도는 양파분말 첨가량이 증가할수록 L값은 대조구가 94.67%로 양파분말 2.0% 첨가구와 유의차를 보이지 않았고 4.0% 이상 첨가구에서는 유의차 없이 그 값은 낮았다. a값은 유의적으로 음의 값이 낮게 나타났고 b값은 유의적으로 높게 나타났다. 반죽의 물리적 특성 중 farinograph에 의한 반죽 특성은 양파분말 첨가량이 증가할수록 흡수율은 감소하였고 반죽도달 시간은 연장되었으며 반죽형성시간과 안정도는 짧아졌으며 연화도는 커졌다. 반죽의 호화 특성을 나타내는 amylograph에서 호화개시온도는 양파분말 첨가량이 증가할수록 대조구와 비슷하거나 다소 높았으며 최고점온도는 차이를 나타내지 않았으며 최고점도는 감소하는 경향을 보였다. Extensograph에 의한 발효특성에서 양파분말 첨가량이 증가할수록 신장도는 감소하였고 저항도와 전체면적은 다소 증가하였다. 양파분말 첨가 반죽의 발효과정 중 pH 변화는 대조구보다 모든 첨가구가 낮게 유지하였고 첨가량이 증가할수록 저하 폭이 다소 완만히 낮게 나타났다. 이상의 결과에서 양파분말을 첨가한 빵반죽의 제빵적성은 양파분말을 4%이내로 첨가한 반죽의 경우 대조구와 큰 차이를 보이지 않는 경향을 보여 식빵 제조시 양파분말의 첨가량은 4% 이내가 적당하다고 사료된다.

Keywords

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