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Effects of Transglutaminase and Non-meat Protein on Texture and Sensory Properties of Duck Patties |
XU Chunming, ZHANG Gensheng*, HAN Bing, LIU Zhixin, YANG Huiduo |
College of Food Engineering, Harbin Commercial University, Harbin 150076, China |
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Abstract This study was undertaken to explore the effects of non-meat protein and transglutaminase (TG) on the texture and sensory properties of duck patties. The texture and sensory quality were investigated as a function of soybean protein isolate (SPI), ovalbumin, sodium caseinate and transglutaminase addition and reaction time using one-factor-at-a-time method and response surface methodology. The results showed that all above variables has a significant influence on the hardness and sensory quality of duck patties (P < 0.05). SPI, ovalbumin and sodium caseinate mixed at a mass ratio of 5:4:2 were added to duck patties. The optimum processing parameters were as follows: TG concentration 1.25%, reaction time 155 min, reaction temperature 4 ℃ and protein mixture concentration 2.25%. The product produced under the optimized conditions had moderate hardness of 1 723.37 g and high scored sensory evaluation (41.23 points) and its texture properties were as follows: elasticity 0.83, chewiness 1 683 g, adhesiveness 2 036.40 g, cohesiveness 1.18, and resilience 0.49.
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