한국식품조리과학회지 (Korean journal of food and cookery science)

  • 제31권2호
  • /
  • Pages.185-192
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  • 2015
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  • 2287-1780(pISSN)
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  • 2287-1772(eISSN)
한국식품조리과학회 (Korean Society of Food and Cookery Science)
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토마토즙과 딸기즙을 첨가한 두부의 품질특성

Quality Characteristics of Tofu Prepared with Tomatoes and Strawberries

  • 김미자 (대구가톨릭대학교 외식식품산업학부) ;
  • 박금순 (대구가톨릭대학교 외식식품산업학부)
  • Kim, Mi-Ja (Faculty of Food Service and Technology, Catholic University of Daegu) ;
  • Park, Geum-Soon (Faculty of Food Service and Technology, Catholic University of Daegu)
  • 투고 : 2015.03.16
  • 심사 : 2015.04.11
  • 발행 : 2015.04.30
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초록

This research tried to contribute to the diversification and the high quality of tofu products by adding the natural colors from tomatoes and strawberries, thus providing more attractive colors, greater antioxidative activity, and higher palatability The quality characteristics of tofu with 4%, 8%, and 12% strawberry juice and 5%, 10%, and 15% of tomato juice were analyzed. Tofu with tomato juice was found to be higher in transference number, and pH showed a significant decrease as the rate of the addition increased, The antioxidant activity of tofu with strawberry juice is 37.76~52.12%, and tofu with tomato juice is 41.79~51.51%, with tofu with tomato juice is being higher than tofu with strawberry juice in antioxidant status DPPH radical scavenging ability. In chromaticity, the L-value and b-value showed significant decreases as tomato juice was added and when strawberry juice are was added and the values increased. In texture, the hardness of tofu with tomato juice was found to be significantly more solid than tofu with strawberry juice. For the test of springiness, the order was as follows: control group> tomato juice 5%> tomato juice 10%. The result of the organoleptic test of tofu showed, tofu with tomato juice to be significantly brighter in exterior color than tofu with strawberry juice (p<0.001), in for savory flavor, the result shows that tofu with 12% strawberry juice added and that with 10% tomato juice added had better flavor. For the test of beany flavor, the control group is higher than tofu with strawberry juice and tomato juice, and tofu with 10% of tomato juice added was lowest in beany flavor. In the preference investigation, tofu with 10% tomato juice showed the highest preference after swallowing and in overall status.

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참고문헌

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