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Characteristics of Breadmaking According to the Addition of Fermented Rice Bran

발효 쌀겨 첨가에 따른 제빵 특성의 변화

  • Park, Hyun-Sil (Food Technology and Food Service Industry, Yeungnam University) ;
  • Han, Gi-Dong (Food Technology and Food Service Industry, Yeungnam University)
  • 박현실 (영남대학교 자연자원대학 식품외식학부 식품가공학전공) ;
  • 한기동 (영남대학교 자연자원대학 식품외식학부 식품가공학전공)
  • Published : 2008.02.29

Abstract

This study was conducted to evaluate characteristic of breadmaking for white bread with fermented rice bran (FRB) (5 to 20%). In proximate composition analysis of FRB which was contained 38.72% moisture, 11.06% crude protein, 17.38% crude fat, 12.74% crude fiber and 11.85% ash. The degree of dough fermentation and dough pH tended to decrease depending on the degree of FRB powder, but there were no significant differences between control group and 5% FRB adding group. In bread weight and volume analysis, bread weight was decreased but bread volume was increased with FRB powder adding degrees. The color of crumb became darker according to the addition of FRB powder, but redness and yellowness were increased. The hardness, gumminess and brittleness of white bread showed a tendency to increase while cohesiveness and springness was decreased. In sensory analysis, FRB group showed generally low scores in color, flavor, texture, taste, overall acceptability except for 5% FRB adding group which showed similar results with control group. Taken together, FRB could be used as a nutrition improvement for breadmaking and a suitable FRB adding volume for breadmaking is 5%.

본 연구는 쌀겨의 효율적 이용을 위하여 개발된 발효쌀겨 의 식품소재화 가능성을 발효쌀겨 첨가에 따른 제빵특성을 비교함으로써 이루어졌다. 발효쌀겨의 일반성분은 수분함량 38.72%, 조단백질 11.06%, 조지방 17.38%, 조섬유 12.74 %, 회분 11.85%, 가용성 무질소물 8.24%이였다. 발효쌀겨 의 첨가량을 달리하여 식빵을 제조한 결과, 발효팽창력 및 pH 분석에서 5% 첨가구가 대조구와 유사한 특성을 나타낸 반면 그 첨가수준이 증가할수록 발효팽창력은 감소하고, pH 의 감소도 적었다. 식빵의 무게 및 부피는 첨가량이 증가함 에 따라 무게는 증가하고, 부피는 감소하였으나 정의 상관 관계는 없었고, 식빵 내부의 색도에서 발효쌀겨 첨가량이 증 가함에 따라 어두운색을 나타내었고, 적색도 및 황색도는 증 가하는 경향을 나타내었다. 경도, 점성, 부서짐성은 발효쌀 겨 첨가량이 증가함에 따라 상승한 반면에 응집성과 탄력성 은 감소하였다. 관능검사에서 발효쌀겨 첨가량이 증가함에 따라 색, 풍미, 맛, 질감, 종합적인 기호도에서 낮은 선호도 를 보였으나, 5% 첨가구는 대조구와 유사한 기호성을 나타 내었다. 위의 결과를 종합해 볼 때 발효쌀겨는 경제적인 빵 의 영양 강화 부재료로 사용될 수 있고, 발효쌀겨를 5%까 지 첨가는 발효쌀겨의 특성을 살리면서 제빵특성에 영향을 주지 않는 것으로 보인다.

Keywords

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