Journal of the Korean Society of Food Culture (한국식생활문화학회지)

Korean Society of Food Culture (한국식생활문화학회)
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Optimization of Yanggaeng Processing Prepared with Mulberry Juice

오디즙 첨가 양갱의 제조 조건 최적화

  • Pyo, Seo-Jin (Department of Food & Nutrition, Sookmyung Women's University) ;
  • Joo, Na-Mi (Department of Food & Nutrition, Sookmyung Women's University)
  • 표서진 (숙명여자대학교 생활과학대학 식품영양학) ;
  • 주나미 (숙명여자대학교 생활과학대학 식품영양학)
  • Received : 2010.12.22
  • Accepted : 2011.06.16
  • Published : 2011.06.30
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Abstract

The purpose of this study was to determine the optimal mixing conditions for three different amounts of mulberry juice, sugar, and agar powder for Yanggaeng prepared with mulberry juice. The experiment was designed according to the central composite design for estimating the response surface, which demonstrated 16 experimental points including 2 replicates for mulberry juice, sugar and agar powder each?? The mechanical and sensory properties of test materials were measured, and these values were applied to the mathematical models. A canonical form and perturbation plot showed the influence of each ingredient on the final product mixture. Measurement results of the mechanical properties showed a significant increase or decrease?? in pH, sugar content, water content, viscosity, l-value, a-value, b-value, hardness, springiness, chewiness, gumminess, cohesiveness. Also the sensory measurements showed a significant improvement?? in appearance, flavor, color, sweetness, texture, overall quality. As a result, the optimum formulation by numerical and graphical methods was calculated as mulberry juice 41.99 g, sugar 90.00 g, agar powder 3.18 g.

Keywords

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