Food Engineering Progress (산업식품공학)

Korean Society for Industrial Food Engineering (한국산업식품공학회)
권호 표지

Effect of Cudrania tricuspidata Leaf Powder Addition on the Quality of Sponge Cakes

꾸지뽕잎 분말을 첨가한 스펀지 케이크의 품질 특성

  • Lee, Jun Ho (Department of Food Science and Engineering, Daegu University) ;
  • Son, Seok Min (Department of Food and Biotechnology, Hoseo University)
  • 이준호 (대구대학교 식품공학과) ;
  • 손석민 (호서대학교 식품생물공학과)
  • Received : 2011.09.22
  • Accepted : 2011.11.08
  • Published : 2011.11.30
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Abstract

The baking performance of Cudrania tricuspidata leaf powder as a value-added food ingredient was investigated in a model system of sponge cakes. Cudrania tricuspidata leaf powder was incorporated into cake batter at 5 levels (0, 5, 10, 15, and 20%, w/w) by adding equivalent amount based on total weight of wheat flour. The specific volume, height, moisture content, volume index, and symmetry index of sponge cakes decreased significantly with the increase in Cudrania tricuspidata leaf powder content (p < 0.05). Sponge cakes became darker and firmer with increase in Cudrania tricuspidata leaf powder content (p < 0.05), as indicated by decrease in the $L^*$ and increase in the firmness measured by the texture measuring instrument. Total polyphenol content also increased gradually as the Cudrania tricuspidata leaf powder content increased. Finally, the consumer acceptance test indicated that addition of Cudrania tricuspidata leaf powder up to 10% in the formulation of sponge cakes did not significantly influence the consumers' acceptability with respect to taste and flavor. In addition, the overall acceptability was not different from each other for control and 5% sample (p > 0.05).

꾸지뽕잎 분말의 첨가량을 0-20%로 달리하여 스펀지 케이크를 제조한 후 물리화학적 품질특성 및 소비자 기호도를 비교하였다. 꾸지뽕잎 분말의 첨가비율이 증가함에 따라 케이크의 비체적, 높이 및 수분함량은 단계적으로 감소하는 경향을 나타내었고, 케이크의 외관상 특성인 부피지수 및 대칭지수 또한 유의적으로 감소하였다(p < 0.05). 밝기를 나타내는 $L^*$값과 황색도를 나타내는 $b^*$값은 꾸지뽕잎 분말 첨가량이 증가할수록 단계별로 유의적으로 감소하였으며(p < 0.05), 반면 적색도를 나타내는 $a^*$값은 5% 대체군에서 최소값을 나타내고 이 후 증가하는 경향을 나타내었다(p < 0.05). 케이크의 경도는 꾸지뽕잎 분말 첨가량에 따라 0.11-0.66 kgf로 단계별로 유의적으로 증가하였다(p <0.05). 총 페놀화합물 함량은 0-15% 첨가군 사이에 단계별로 유의적인 차이없이 증가하는 경향을 나타내었고 (p > 0.05) 이후 유의적인 증가를 보였다. 소비자 기호도 검사 결과 대조군, 5% 및 10% 첨가군 간 맛과 향미의 유의적인 차이는 발견되지 않았고(p > 0.05), 전체적인 기호도 또한 대조군과 5% 첨가군 사이에 유의적인 차이는 발견되지 않아(p > 0.05), 관능품질을 저해하지 않고 꾸지뽕잎 분말의 건강 기능성 효과 등을 고려할 때 5% 첨가군이 가장 적절한 것으로 판단된다.

Keywords

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