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Studies on the Physical Characteristics of Muffins with Tagatose and Sugar during Storage

설탕과 타가토스를 사용하여 제조한 머핀의 저장기간에 따른 물리적 특성 연구

  • Hwang, Ja-Young (Dept. of Food and Nutrition, DongNam Health University) ;
  • Kim, Young-Jae (Food Ingredients R&D Center, CJ CheilJedang Corporation) ;
  • Lee, Sun-Mee (Div. of Food Science, Kyungil University)
  • 황자영 (동남보건대학교 식품영양학과) ;
  • 김영재 (CJ 제일제당 소재 연구소) ;
  • 이선미 (경일대학교 식품과학부)
  • Received : 2015.02.02
  • Accepted : 2015.02.26
  • Published : 2015.02.27

Abstract

The aim of this study was to evaluate the characteristics of muffin made with tagatose which substituted sugar. Moisture contents were measured and Texture Profile Analysis was carried out during 3 day storage. 3 types of muffin, T0 (no tagatose added, sugar was the only sweet taste source), T25 (tagatose : sugar = 25:75(w/w), and T50 (tagatose : sugar = 50:50(w/w) were prepared. As the tagatose contents increased, the Maillard reaction proceeded more, so the color of the muffin crust was darker. Moisture contents of muffins decreased during storage, up to 2 days of storage, moisture contents of T25 and T50 were higher significantly, but at the 3rd day of storage, no differences were detected among samples. In the texture profile analysis, hardness, chewiness and fracturability were higher as the tagatose contents increased. Springiness and cohesiveness did not show any differences between T0 and T25 significantly. In the sensory evaluation, T0 got the lower points on the crust color value, but the crust colors were not significantly different among samples. Other characteristics like crumb color, moistness, sweetness, flavor and overall acceptance were not different significantly. As a result, when synbiotic and low-calorie tagatose was partly added to muffin up to 50 % as sugar substitute, overall qualities of those muffins were not different with only sugar added ones, even moisture contents were higher but color was a little bit darker, so tagatose can be used on making healthy muffins successfully.

타가토스의 함량을 달리한 머핀의 저장기간에 따른 수분 함량, 색도, 조직감을 분석하였으며, 관능평가를 실시하였다. 수분 함량은 저장기간에 따라 모든 실험군에서 감소하는 경향을 나타냈으며, 저장 2일째까지는 T25와 T50의 수분 함량이 유의적으로 높았으나, 3일째에는 유의적 차이를 나타내지 않았다. 색도의 경우, 황색도를 나타내는 b값이 T50에서 높게 나타났으며, 이는 관능평가에서도 같은 경향을 나타내, 타가토스가 설탕에 비해 갈변에 영향을 끼치는 것으로 분석되었다. 조직감 분석결과, 경도, 씹힘성, 깨짐성에서 저장기간에 따른 실험군별 유의적 차이가 나타났으며, 타가토스 함량이 높을수록 그 값이 높게 분석되었다. 탄력성과 응집성의 경우 T0과 T25는 유의적인 차이를 나타내지 않았다. 관능평가의 경우 껍질의 갈색 정도가 T25와 T50이 높게 나타났으며, 경도와 쓴맛의 경우 T0이 낮게 분석되었다. 그러나 내부색, 촉촉한 정도, 단맛, 향에 있어서는 실험군별 유의적 차이를 나타내지 않았고, 전체적 기호도 역시 실험군별 유의적 차이를 나타내지 않아 타가토스는 설탕 대비 50%까지 머핀 제조 시 첨가되어 사용될 수 있는 것으로 여겨진다.

Keywords

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