Journal of Food Composition and Analysis, cilt.148, 2025 (SCI-Expanded)
The nutritional effects of innovative cooking compared to traditional cooking methods on large trout were determined. The groups consisted of large trout cooked by conventional (deep frying, low frying, stir-frying) and innovative (sous-vide, high pressure, and low pressure) methods. Cooking increased total polyunsaturated fatty acid content (up to 46.32 %) and energy value (up to 234.66 kcal/100 g). Total omega-3 fatty acid content increased significantly in cooked samples, particularly in the sous-vide group (2734.55 mg/100 g), where eicosapentaenoic acid +docosahexaenoic acid content also peaked (1775.06 mg/100 g). Among the cooking methods, deep frying resulted in the lowest cholesterol level (233.67 mg/100 g), compared to raw fish (253.77 mg/100 g). Mineral content remained within safe consumption limits across all treatments. Both deep frying and high-pressure cooking enhanced the amino acid profile, increasing the essential to non-essential amino acid ratio to 1.05. Selenium (Se) content also rose notably in the deep-fried group, from 0.25 mg/kg (raw) to 0.35 mg/kg. These results suggest that innovative cooking techniques—particularly sous-vide and high-pressure cooking—not only maintain but can enhance the nutritional value of large rainbow trout, especially with respect to omega-3, eicosapentaenoic acid, and docosahexaenoic acid contents, supporting their suitability for health-conscious consumption.