Korean journal of food and cookery science (한국식품조리과학회지)

Korean Society of Food and Cookery Science (한국식품조리과학회)
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Quality Characteristics of Jelly Made with Yam Powder

마가루 첨가량에 따른 젤리의 품질특성

  • Lee, Jung-Ae (Dept. of Food, Nutrition & Cookery, Keimyung College) ;
  • Park, Geum-Soon (Faculty of Food Technology and Service, Catholic University of Daegu)
  • 이정애 (계명문화대학 식품영양조리과) ;
  • 박금순 (대구가톨릭대학교 식품외식산업학부)
  • Published : 2007.12.31
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Abstract

The purpose of this study was to investigate the effects of adding various concentration of yam powder (Y0:0g, Y1:2g, Y2:4g, Y3:6g, Y4:8g, Y5:10g) on the physicochemical and sensory characteristics of jelly. The pH of the samples ranged from 5.61 to 5.70, and this pH range was stable. As for the viscosity of the jelly, the samples made with yam powder showed higher viscosities than the control. and the viscosity increased with increasing amounts of yam powder, viscosity was increased. The Hunter color L- and a-values decreased significantly (p<.001) by the addition of yam powder. For the textural characteristics, the addition of yam powder increased the cohesiveness and decreased the springiness and chewiness. In the sensory evaluation, the appearance and flavor acceptability of the jellies were in the order of Y0>Y1>Y2>Y3>Y4>Y5. The texture acceptability was highest in Y0 and Y1 and taste and overall acceptability were highest in Y1.

국민소득의 향상과 함께 소비자의 고품질 식품에 대한 기호도가 높아지고 건강에 대한 관심의 증가로 인해 기능성 식품소재로서 마를 이용한 젤리를 제조하여 이화학적, 기계적 및 관능적 품질특성을 조사하였다. 마젤리의 pH는 큰 차이가 없었으나 마 가루 첨가량에 따라 약간 높아지는 경향을 보였다. 점도는 마 가루의 첨가량이 증가될수록 높게 나타났으며 흡광도는 마를 첨가할수록 높아져 투명도가 감소함을 알 수 있었다. 마젤리의 색도는 마 가루의 첨가량이 증가될수록 L값과 a값은 감소되었으며 b값은 증가하였다. Texture는 마 가루의 첨가량이 증가할수록 탄력성과 씹힘성이 낮아졌으며 응집성은 증가되었다. 관능검사에서 매끈한 정도는 대조군이 6.60으로 가장 높았으며 마 가루 첨가 젤리군에서는 마 가루 2g 첨가 젤리가 가장 높았으며 깔끔한 맛에서도 가장 높게 평가되었다. 전반적인 기호도에서 외관의 기호도는 대조군이 6.10, 마 가루 2g 첨가 젤리가 5.70, 마 가루 4 g 첨가 젤리 4.80이 나타났으며 맛과 전반적인 기호도에서 마 가루 2 g 첨가 젤리가 가장 높게 나타났으며 그 다음으로 마 가루 4 g 첨가 젤리가 높게 나타났다. 마젤리의 이화학적 및 기계적 특성검사, 기호도 검사결과 마를 이용한 젤리 제조시 마 가루$2{\sim}4$ g 첨가가 가장 적정한 양으로 유도되었다.

Keywords

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