Gunnarsson, Pontus
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Abstract
Aquaculture is recognized as a key future food source, and to sustain increasing production and reduce the ecological footprint, new protein sources are needed. However, replacing the conventional fish and soybean meals may affect fillet quality. This study examined a phylogenetically broad set of protein sources and their effects on sensory attributes and metabolism of rainbow trout (Oncorhynchus mykiss). Five feeds derived from microfungi, black soldier fly, mealworm, blue mussel, and tunicate were evaluated against a soy-based control. Sensory attributes were assessed using Rate-All-That-Apply, and 1H NMR metabolomics to analyze feed and muscle metabolomes. Phylogenetically closer protein sources showed more similar feed and muscle metabolite profiles, and only minor differences in color, root vegetable taste, and aroma were found. Metabolic effects involved osmoregulation, energy, and amino acid metabolism. Overall, insect-based feeds appeared most favorable based on sensory results and product quality biomarkers; however, all tested feeds remained viable.
Keywords
metabolomics; sensory; Rate-All-That-Apply; RATA; rainbow trout; Oncorhynchus mykiss; alternative feeds; fillet; 1H NMR
Published in
Journal of Agricultural and Food Chemistry
2025
Publisher: AMER CHEMICAL SOC
SLU Authors
Eriksson Röhnisch, Hanna
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
- Department of Molecular Sciences, Swedish University of Agricultural Sciences
Vidakovic, Aleksandar
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Kiessling, Anders
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Dicksved, Johan
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
UKÄ Subject classification
Food Science
Publication identifier
- DOI: https://doi.org/10.1021/acs.jafc.5c07909
Permanent link to this page (URI)
https://res.slu.se/id/publ/144484