Enzyme Concentration (%) Hydrolysis Time (h) Whole Fish Head Frame FTSG
Protein Yield (g) Total Protein (g) Protein Yield (g) Total Protein (g) Protein Yield (g) Total Protein (g) Protein Yield (g) Total Protein (g)
0.5 1 3.53 ± 0.15 34.39 3.28 ± 0.03 4.98 3.52 ± 0.11 2.61 2.48 ± 0.06 3.83
2 3.86 ± 0.12 37.60 3.55 ± 0.02 5.39 3.97 ± 0.01 2.95 2.75 ± 0.04 4.24
3 4.53 ± 0.11 44.13 3.75 ± 0.04 5.69 4.19 ± 0.02 3.11 2.95 ± 0.03 4.55
4 5.21 ± 0.01 50.76 3.82 ± 0.02 5.80 4.39 ± 0.03 3.26 3.28 ± 0.02 5.06
1.0 1 3.67 ± 0.03 35.75 3.22 ± 0.02 4.89 3.81 ± 0.04 2.83 2.96 ± 0.02 4.57
2 4.17 ± 0.10 40.62 3.53 ± 0.02 5.36 4.25 ± 0.02 3.16 3.37 ± 0.05 5.20
3 5.14 ± 0.12 50.07 3.75 ± 0.02 5.69 4.46 ± 0.02 3.31 3.58 ± 0.04 5.52
4 5.54 ± 0.01 53.97 3.92 ± 0.03 5.95 4.68 ± 0.02 3.47 3.78 ± 0.02 5.83
2.0 1 4.24 ± 0.11 41.31 3.39 ± 0.02 5.14 3.63 ± 0.02 2.69 3.45 ± 0.04 5.32
2 4.86 ± 0.05 47.35 4.00 ± 0.09 6.07 4.71 ± 0.03 3.50 3.95 ± 0.03 6.09
3 5.44 ± 0.02 53.00 4.22 ± 0.02 6.40 4.97 ± 0.05 3.69 4.14 ± 0.02 6.39
4 5.94 ± 0.02 57.87 4.36 ± 0.03 6.62 5.28 ± 0.02 3.92 4.26 ± 0.02 6.57
Whole Fish = 487.11 g; Head = 75.87 g; Frame = 37.12 g Fin Tail Skin and Gut (FTSG) = 77.14 g
Table 6: Total protein recovered from fish parts.