Processing optimization of restructured jerky from sea rainbow trout frame muscle

Abstract

This study determined optimal drying temperature and time on the moisture content, hardness, and overall sensory acceptance of restructured jerky from sea rainbow trout frame muscle (RJ-SRTF) using response surface methodology. The optimal drying conditions with respect to the above variables were 67.2A degrees C for drying temperature and 8.6 h for drying time. The predicted values of response optimal conditions were 18.8 g/100 g for moisture content, 495.8 g/cm(2) for hardness, and a score of 7.2 for overall sensory acceptance. The actual values obtained in this experiment were 19.1 +/- 0.6 g/100 g for moisture content, 453.9 +/- 91.0 g/cm(2) for hardness, and a score of 7.4 +/- 0.5 for overall sensory acceptance. Both actual and predicted values were nearly identical. In conclusion, the models are adequately fitted to experimental data and suitable for optimization.