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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Qualities of Bread Added with Korean Persimmon(Diospyros kaki L.folium)Leaf Powder

한국산 감잎가루를 첨가한 빵의 품질

  • Bae, Jong-Ho (Dept. of Confectionery Decoration, Daegu Mirae College) ;
  • Woo, Hi-Seob (School of Food Science, Dongju College) ;
  • Choi, Hee-Jin (Dept. of Food Science and Technology, Yeungnam University) ;
  • Choi, Cheong (Dept. of Food Science and Technology, Yeungnam University)
  • 배종호 (대구미래대학 제과데코레이션과) ;
  • 우희섭 (동주대학 식품과학계열) ;
  • 최희진 (영남대학교 식품가공학과) ;
  • 최청 (영남대학교 식품가공학과)
  • Published : 2001.10.01
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Abstract

The purpose of this study was to investigated quality properties of breads prepared from wheat flour with persimon leaf power. Results showed that the volume of bread was lessened, the weight of bread went up, and baking loss rate diminished as persimmon leaf powder content incremented. The experiment showed that bread was maintained in the low level of springiness and cohesiveness was relatively reduced as time lapsed, whereas 3.0 and 5.0% test group remained significantly high level. There was a rapid increment in chewiness and gumminess, which tended to show significantly low as compared to control group, Results of sensory evaluation showed that the preference scores decreased as the persimmon leaf powder contents increased (p<0.05), flavor made no significant differences up to 3.0% test group, however, 5.0% test group containing elutionsuch as catechin or tannin produced sour and bitter taste so strongly that made if feel uncomfortable with. The augment of content indicated a low prederence in terms of texture, in an overall preference had no significant differences as compared to the control group, and 0.5% test group. Through the results of these of these experiments, we can conclude that the highest quality of persimmon leaf powder content is no more than 0.5% in making bread added with persimmon leaf powder.

한국산 감잎가루를 빵제조시 첨가하여 빵의 품질 특성을 조사하였다. 발효과정 중 반죽의 pH는 감잎가루 첨가량이 증가할수록 저하하였으며 빵의 부피는 감잎가루 첨가량 증가에 따라 감소하였고, 중량은 증가하였으며, 굽기는 손실율은 감소하였다. 빵의 텍스쳐에서 경도는 대조구에 비해 감잎가루 첨가빵이 낮게 유지되어 노화 지연 효과를 알수 있었다. 탄력성은 낮은 수준으로 유지되었으며, 응집성은 시간이 경과하명서 다소 감소하였고, 3.0, 5.0% 첨가구는 실험기간 중 유의적으로 높게유지하였다. 점착성과 씹힘성은 빠르게 증가하였으며, 대조구에 비해 감잎가루 첨가구가 유의적으로 낮은경향을 보였다. 관능평가에서 색상은 감잎가루 첨가량이 증가할수록 기호도는 유의적으로 낮았고, 향미는 3.0% 첨가구까지는 유의적 차이가 없었으나, 5.0% 첨가구는 catechin이나 탄닌 등의 용출이 많아 떫은 맛과 쓴맛이 강하게 느껴져거부감을 주었다. 조직감은 감잎가루 첨가량이 증가할수록 기호도가 낮았으며, 전체적인 기호도는 0.5% 첨가구는 대조구와 유의적인 차이를 보이지 않았고, 3.0% 첨가구까지는 유의적인 차이를 보이면서 낮았다. 그러나 감잎가루를 빵 제조시 첨가했을 때 제품의 품질에 큰 영향을 주지 않고 감잎의 기능성과 영양성을 갖기 위해서 제빵시 감잎가루 0.5% 첨가한것이 제품의 상품성에 영향을 주지 않아 적정 첨가량임을 알 수 있었다.

Keywords

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