不同解冻方法对脆肉鲩鱼肉品质特性的影响

    Effect of Different Thawing Methods on Quality Characteristics of Ctenopharyngodon idellus C.et V

    • 摘要: 研究了5种不同解冻方法(空气、静水、低温、微波和超声波)对脆肉鲩鱼肉品质特性的影响。结果表明:不同解冻方法对脆肉鲩鱼肉品质有一定的影响;冷冻鱼肉经静水解冻后,pH值与对照组无显著变化(P>0.05),解冻损失率、蒸煮损失率和加压失水率较低,L(亮度)、a*(红度)、b*(黄度)值与对照组最为接近,静水解冻能较好地保持鱼肉的持水性和色泽;经空气解冻后,脆肉鲩鱼肉咀嚼性显著降低,经微波解冻后其咀嚼性显著增大,而经低温解冻、静水解冻和超声波解冻后脆肉鲩鱼肉咀嚼性无显著变化;静水解冻后脆肉鲩肌原纤维蛋白总巯基含量较高,与对照组无显著差异(P>0.05),羰基含量值最低,相比较其他解冻方式,静水解冻对鱼肉的微观结构影响较小。总体而言,与其他几种解冻方式相比,静水解冻能更好地保持脆肉鲩鱼肉的品质。

       

      Abstract: The effects of five different thawing methods including natural air thawing,thawing in water,low-temperature thawing,microwave thawing,and ultrasonic thawing on quality characteristics of Ctenopharyngodon idellus C.et V meat were studied.The changes of basic eating quality,textural properties,TBARS,protein carbonyl content,total sulfhydryl content were analyzed among five thawed samples.The result showed that different thawing methods exerted a certain impact on quality changes of Ctenopharyngodon idellus C.et V meat.After thawing of frozen meat in water,there were not significant differences in the pH value compared to the control group (P> 0.05),however,thawing loss,cooking loss and pressure filtration rate were lower.The L,a*,b* values were most closely to the control group,and water-holding capacity and color were maintained at higher levels.After thawing of frozen meat in water,there were not significant differences in the total sulfhydryl content compared to the control group (P> 0.05).The protein carbonyl content and TBARS value were lower than the other group.Compared with other thawing methods,thawing in water was more suitable to maintain the qualities of Ctenopharyngodon idellus C.et V meat.

       

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