Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/2967
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Seasonal Variations in Skin Pigmentation and Flesh Quality of Atlantic Salmon (Salmo salar L.): Implications for Quality Management
Author(s): Leclercq, Eric
Dick, James R
Taylor, John
Bell, J Gordon
Hunter, Dougie
Migaud, Herve
Contact Email: lecleric@yahoo.fr
Keywords: Atlantic salmon
skin pigmentation
coloration
flesh quality
sexual maturation
reconditioning
Atlantic salmon
Fishes Quality
Issue Date: Jun-2010
Date Deposited: 27-Apr-2011
Citation: Leclercq E, Dick JR, Taylor J, Bell JG, Hunter D & Migaud H (2010) Seasonal Variations in Skin Pigmentation and Flesh Quality of Atlantic Salmon (Salmo salar L.): Implications for Quality Management. Journal of Agricultural and Food Chemistry, 58 (11), pp. 7036-7045. http://pubs.acs.org/doi/abs/10.1021/jf100723b; https://doi.org/10.1021/jf100723b
Abstract: The external coloration of fish is a key driver in the consumer buying decision and is typically altered during sexual maturation in salmonids. Farmed Atlantic salmon (Salmo salar L.) exhibiting distinct phenotypes from the typical silver and nuptial colouration were described in terms of sexual development, flesh quality and skin pigment profiles. Reconditioning of skin colouration during storage was also tested (CIE[1976]L*a*b*) with the overall view of optimizing quality management. The intermediary phenotype never reflected significant deteriorations in flesh quality. It originated from a lack of purine pigments (guanine and hypoxanthine) revealing the carotenoid compounds dominated by the yellow-orange ß-carotene. The resulting distinctive lightness and yellowness were reduced by direct ice contact at a post-mortem stage. Storage conditions can be optimized to improve and standardize the coloration of whole-fish yielding superior flesh quality parameters. This would facilitate product quality grading during primary processing but also increase product acceptance and attractiveness.
URL: http://pubs.acs.org/doi/abs/10.1021/jf100723b
DOI Link: 10.1021/jf100723b
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