Journal of Fisheries Science and Technology

Journal of Fisheries Science and Technology

Effects of Different Cooking Methods on Physical Properties and Sensory Evaluation of Rainbow Trout Fillets (Oncorhychus mykiss)

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Abstract
The effects of cooking methods on sensory attributes and physical properties (firmness, normal shear, cooking loss and color based on L*, a* and b*) of rainbow trout (Oncorhynchus mykiss) fillet was investigated. The study was based on application of autoclavingat 120 °C for 5 and 10 minutes, deep frying of the flour coated fillet at 180 °C for 2 and 5 minutes and microwaving at 600 watt for 2, 4 and 6 minutes. Cooking loss significantly differed among the cooking methods, the highest of which occurred in 6 minute microwaved treatment. The highest and the least color changes were, respectively, recorded in coated fillet fried for 5 minute and for 2 minute microwaved fillet treatment. In terms of normal shear results, control and 2 minute fried fillet treatment had the hardest tissue, respectively. Also the penetrate tests revealed a significant difference between control and other treatments (p< 0.05) as the hardest tissue was the one that fried for 5 minute and the softest one was the control. However, the highest score was allocated to the fried and 6 minute microwaved treatments by the panelists. Based on the sensory evaluation, fillet fried for 5 minute was found as a preferred cooking method.
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