An omics approach for understanding flesh coloration in the Atlantic salmon, Salmo salar ...
The characteristic pink-red flesh color of Atlantic salmon (Salmo salar) and other salmonids, referred to as pigmentation, is considered a primary and likely the highest priority standard of quality and freshness. The salmonids' flesh color results from the accumulation of carotenoids (primaril...
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| Format: | Text |
| Language: | English |
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University of the Sunshine Coast, Queensland
2021
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| Online Access: | https://dx.doi.org/10.25907/00099 https://research.usc.edu.au/esploro/outputs/doctoral/99584608902621 |
| Summary: | The characteristic pink-red flesh color of Atlantic salmon (Salmo salar) and other salmonids, referred to as pigmentation, is considered a primary and likely the highest priority standard of quality and freshness. The salmonids' flesh color results from the accumulation of carotenoids (primarily astaxanthin) that salmonids obtain from their feed. In the pathway of astaxanthin metabolism, the muscle seems to be the astaxanthin leading storage site in the salmonid body, and the liver has a vital role in catabolizing astaxanthin metabolites that are excreted into the intestinal system and reabsorbed. Following that, the gastrointestinal system is the central place where astaxanthin is taken from the food matrix, and metabolic astaxanthin or remnant astaxanthin are reabsorbed. In the salmon gastrointestinal system, pyloric caeca prove to be a significant absorptive site, while hindgut is considered critical in carotenoids reabsorption. However, it has been recorded that carotenoids utilization for flesh ... |
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