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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Changes of Breadmaking Characteristics with the Addition of Rice Bran, Fermented Rice Bran and Rice Bran Oil

쌀겨, 발효쌀겨 그리고 쌀겨유의 첨가에 따른 제빵특성의 변화

  • Park, Hyun-Sil (Dept. of Food Science and Food Service Industry, Yeungnam University) ;
  • Choi, Kyoung-Min (Dept. of Food Science and Food Service Industry, Yeungnam University) ;
  • Han, Gi-Dong (Dept. of Food Science and Food Service Industry, Yeungnam University)
  • 박현실 (영남대학교 자연자원대학 식품외식학부 식품가공학) ;
  • 최경민 (영남대학교 자연자원대학 식품외식학부 식품가공학) ;
  • 한기동 (영남대학교 자연자원대학 식품외식학부 식품가공학)
  • Published : 2008.05.31
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Abstract

This study was conducted to evaluate the breadmaking characteristics of white bread when rice bran (RB), fermented rice bran (FRB) and rice bran oil (RBO) were added to the dough. Addition of RB to dough generally showed a decrease of the bread volume and increase of the bread weight which is related to the comparative decrease of gluten in the dough. Addition of RB also showed a decrease of lightness with yellowish color of RB and showed some rheological changes in dough. However, up to 5% RB addition, the dough showed a similar property of breadmaking with giving functional benefits compared to the control. Moreover 5% FRB addition to the dough improved the taste, flavor, and texture important to quality of bread. Substitutional use of RBO for shortening in dough result in comparative decrease of volume of dough. Addition of yellowish RBO influenced the increasing yellowness score, hardness, gumminess and brittleness, which is disadvantageous for the quality of white bread. However up to 50% RBO substitution for shortening made little rheological differences compared to the control. The 50% RBO substitution for shortening increased the score of flavor in sensory test even if there was an unfavorable quality point of white bread caused by a decreased volume and an increased hardness. From these results it could be suggested that the proper use of RB, FRB and RBO in breadmaking could improve the taste and flavor, giving beneficial function originated from rice bran to white bread.

쌀겨와 발효쌀겨, 쌀겨유의 쇼트닝 대체에 따른 제빵특성 변화에 대하여 조사하였다. 빵 반죽에 대한 쌀겨의 첨가는 제빵 후 명도의 감소, 황색도 및 적색도의 증가와 전반적 물성 변화를 가져오나, 5% 정도의 쌀겨 첨가는 쌀겨의 기능성을 가지면서 대조구와 외관 및 물성적으로 큰 차이를 보이지 않았다. 효모로 예비 발효한 발효쌀겨의 첨가는 대조구와 큰 차이를 보이지 않으면서 texture 및 풍미가 향상되었다. 빵 반죽에 대한 쌀겨유의 쇼트닝 대체는 첨가 수준이 클수록 반죽 내 비 용적이 감소되었다. 황색의 쌀겨유의 첨가는 반죽의 명도를 낮추고 황색도를 증가시켰다. 또한 쇼트닝의 쌀겨유 대체는 경도, 씹힘성 그리고 부서짐 등의 증가를 가져오는 불리한 점이 있으나, 50% 정도의 쌀겨유 대체는 빵의 물성변화에 있어 대조구와 큰 차이를 나타내지 않았다. 또한 쌀겨유의 대체는 관능평가에서 부피의 상대적 감소 및 경도의 증가로 인한 질감의 저하를 가져오나, 제빵 후 풍미 향상을 유도하는 것으로 나타났다. 이상의 결과로 볼 때 쌀겨, 발효쌀겨 그리고 쌀겨유의 제빵과정 중 첨가는 빵의 색, 부피 등 외관상 대조구에 비하여 다소 변화를 가져올 수 있으나, 쌀겨 특히, 발효쌀겨의 첨가는 오히려 맛 과 풍미 향상을 가져오는 것으로 사료된다.

Keywords

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