http://orcid.org/0000-0003-3266-893X
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ABSTRACT
Barley concentrations ranging from 0% to 32% were incorporated into rainbow trout (Oncorhynchus mykiss) diets. The effect of barley concentration on lipid peroxidation and antioxidant activity of fish fillets were analyzed. Results showed that the inclusion of barley in rainbow trout diets had an inhibitory effect on lipid oxidation, probably associated with certain bioactive compounds in barley that could interact with scavenging and reducing metabolites involved in lipid oxidation. Concentrations up to 8% of barley produced fish fillets with high antioxidant activity and higher levels of alpha-tocopherol.
Practical Applications
Barley is a cereal not frequently used in aquaculture. The present study demonstrates that its use would be advantageous due to its capacity to enhance quality, oxidative stability, and the antioxidant activity of fish fillet, making rainbow trout fillets healthier and promoting its sale.