Table 1.
Fish weight, g | ||||||
---|---|---|---|---|---|---|
250–500 | 501–750 | 751–1,000 | ||||
P | C | P | C | P | C | |
Physical (n = 3) | ||||||
Cooking yield, % | 80.0 ± 1.44b | 82.6 ± 0.83 b | 84.3 ± 1.15 ab | 87.9 ± 1.60 a | 83.6 ± 0.58 ab | 83.1 ± 1.07 a |
Fat retention capacity, % | 177.9 ± 9.72c | 209.3 ± 0.47 b | 160.7 ± 2.65 d | 201.9 ± 1.33 b | 152.3 ± 2.97 d | 227.7 ± 4.45 a |
Water holding capacity | 0.55 ± 0.01ab | 0.62 ± 0.02 a | 0.47 ± 0.06 c | 0.54 ± 0.01bc | 0.57 ± 0.03ab | 0.51 ± 0.02bc |
Chemical (n = 3) | ||||||
Moisture, % | ||||||
Uncooked | 72.0 ± 1.73a | 65.2 ± 1.22ab | 70.6 ± 0.92a | 60.2 ± 0.94b | 73.3 ± 2.88a | 60.0 ± 1.03b |
Cooked | 60.0 ± 1.63ab | 53.9 ± 1.15c | 62.0 ± 0.88a | 52.4 ± 1.51c | 56.5 ± 0.85abc | 56.2 ± 1.01bc |
Protein, % | ||||||
Uncooked | 31.5 ± 2.74ab | 33.3 ± 1.21a | 32.7 ± 1.70a | 32.2 ± 0.23a | 31.8 ± 0.16a | 27.8 ± 1.20b |
Cooked | 25.9 ± 1.28a | 26.1 ± 0.84b | 26.6 ± 0.35a | 24.4 ± 0.56bc | 24.8 ± 0.07bc | 23.7 ± 0.48c |
Total lipids, % | ||||||
Uncooked | 3.3 ± 0.10d | 2.6 ± 0.00e | 4.3 ± 0.11b | 3.8 ± 0.06c | 4.6 ± 0.02a | 2.7 ± 0.00c |
Cooked | 7.3 ± 0.10b | 6.7 ± 0.02c | 8.2 ± 0.80a | 6.6 ± 0.09c | 6/6 ± 0.09a | 7.5 ± 0.05b |
Soluble sugars, % | ||||||
Uncooked | 7.5 ± 0.00cd | 6.9 ± 0.63d | 8.9 ± 0.63b | 8.2 ± 0.75bc | 10.2 ± 0.50a | 7.9 ± 0.38bcd |
Cooked | 9.0 ± 0.50d | 10.7 ± 0.25c | 12.2 ± 0.25b | 11.5 ± 0.50bc | 14.0 ± 0.50a | 11.2 ± 0.75bc |
Gross energy, k cal/100 g | ||||||
Uncooked | 231.0 ± 14.72bc | 245.4 ± 9.46ab | 252.3 ± 8.12a | 252.1 ± 1.23a | 256.7 ± 4.96a | 215.5 ± 4.96c |
Cooked | 250.5 ± 7.82c | 253.4 ± 8.68c | 292.3 ± 1.65a | 245.0 ± 6.05c | 274.4 ± 0.53b | 248.5 ± 5.26c |
Sensory (n = 6 panelists, score on 9-point Hedonic scale) | ||||||
Appearance | 7.7 ± 0.49a | 8.3 ± 0.33a | 8.0 ± 0.26a | 8.5 ± 0.22a | 7.7 ± 0.56a | 7.8 ± 0.31a |
Colour | 7.8 ± 0.48a | 8.5 ± 0.22a | 7.7 ± 0.21a | 8.3 ± 0.33a | 7.7 ± 0.49a | 8.1 ± 0.26a |
Flavour | 7.8 ± 0.48ab | 7.3 ± 0.42b | 8.3 ± 0.33a | 8.3 ± 0.33a | 8.0 ± 0.25ab | 8.3 ± 0.21a |
Taste | 7.7 ± 0.21a | 7.5 ± 0.34 a | 8.3 ± 0.21a | 7.7 ± 0.56a | 7.8 ± 0.40a | 8.3. ± 0.33a |
Texture | 7.3 ± 0.49c | 7.7 ± 0.22bc | 8.9 ± 0.33a | 8. ± 2 0.31ab | 8.2 ± 0.31ab | 8.0. ± 0.00bc |
Overall quality | 7.3 ± 0.33c | 7.5 ± 0.22bc | 8.3 ± 0.33a | 7.8 ± 0.31bc | 8.0 ± 0.37b | 8.2 ± 0.17ab |
Microbial log cfu/g (n = 3 total plate counts) | ||||||
Uncooked | 6.1 ± 0.03a | 6.1 ± 0.04a | 6.0 ± 0.03a | 6.1 ± 0.05a | 6.1 ± 0.03a | 6.1 ± 0.04a |
Cooked | 4.0 ± 0.02a | 4.0 ± 0.03a | 3.9 ± 0.07a | 3.9 ± 0.05a | 3.9 ± 0.06a | 3.8 ± 0.05a |
Values with different superscripts in a row for each parameter differ significantly (p ≤ 0.01)
P boiled potato, C corn flour