Food Engineering Progress (산업식품공학)

Korean Society for Industrial Food Engineering (한국산업식품공학회)
권호 표지

Quality of Sponge Cakes Incorporated with Yacon Powder

야콘 스펀지 케이크의 품질 특성

  • Lee, Jun Ho (Department of Food Science and Engineering, Daegu University) ;
  • Son, Seok Min (Department of Food and Biotechnogy, Hoseo University)
  • 이준호 (대구대학교 식품공학과) ;
  • 손석민 (호서대학교 식품생물공학과)
  • Received : 2011.08.09
  • Accepted : 2011.08.22
  • Published : 2011.08.31
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Abstract

The baking performance of yacon powder as a value-added food ingredient was investigated in a model system of sponge cakes. Yacon powder was incorporated into cake batter at 5 levels (0, 10, 20, and 30%, w/w) by replacing equivalent amount of wheat flour. The specific gravity of batter increased significantly while pH decreased significantly with the increase in yacon powder content (p < 0.05). The specific volume and moisture content of sponge cakes decreased while baking loss increased (p < 0.05). Volume of the cakes decreased with higher amount of yacon powder in the formulation as indicated by the decrease in the volume index. The symmetry index was not affected by the amount of yacon powder in the formulation (p > 0.05). Sponge cakes became darker and firmer with increase in yacon powder content (p < 0.05). Finally, the consumer acceptance test indicated that incorporation of yacon powder up to 20% in the formulation of sponge cakes did not significantly influence the consumers' overall acceptability.

야콘 분말의 대체량을 0-30%로 달리하여 스펀지 케이크를 제조한 후 물리화학적 및 관능적 품질특성을 비교하였다. 야콘 분말의 대체비율이 증가함에 따라 반죽의 비중은 단계별로 유의적으로 증가하였고 pH는 감소하는 경향을 나타내었다. 한편 케이크의 비체적과 수분함량은 야콘 분말 대체에 따라 유의적으로 감소하였고 굽기 손실은 증가하였다(p<0.05). 부피지수는 감소하는 경향을 보여 야콘 분말 비율이 높아지면 케이크의 부피 또는 높이가 작아짐을 알 수 있었다. 반면 대칭지수는 야콘 분말 대체량에 따른 유의적인 차이를 나타내지 않았다(p > 0.05). 밝기는 나타내는 L*값은 유의적으로 감소하였으며(p < 0.05), 경도는 점차적으로 증가하였으나 20% 및 30% 대체군 사이에 유의적인 차이는 발견되지 않았다. 소비자 기호도 검사결과 대조군, 10% 및 20% 대체군 사이에 전체적인 기호도에 대한 유의적인 차이는 발견되지 않았으나(p > 0.05), 관능품질을 저해하지 않고 야콘 분말의 건강 기능성 효과 등을 고려할 때 20% 대체군이 가장 적절한 것으로 판단된다.

Keywords

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