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Inclusion of Palmaria palmata (red seaweed) in Atlantic salmon diets: effects on the quality, shelf-life parameters and sensory properties of fresh and cooked salmon fillets.
- Source :
-
Journal of the science of food and agriculture [J Sci Food Agric] 2015 Mar 30; Vol. 95 (5), pp. 897-905. Date of Electronic Publication: 2014 Jun 30. - Publication Year :
- 2015
-
Abstract
- Background: The use of Palmaria palmata (PP) as a natural ingredient in farmed Atlantic salmon diets was investigated. The effect of salmon diet supplementation with P. palmata (0, 5, 10 and 15%) or synthetic astaxanthin (positive control, PC) for 16 weeks pre-slaughter on quality indices of fresh salmon fillets was examined. The susceptibility of salmon fillets/homogenates to oxidative stress conditions was also measured.<br />Results: In salmon fillets stored in modified atmosphere packs (60% N2 /40% CO2 ) for up to 15 days at 4 °C, P. palmata increased surface -a* (greenness) and b* (yellowness) values in a dose-dependent manner, resulting in a final yellow/orange flesh colour. In general, the dietary addition of P. palmata had no effect on pH, lipid oxidation (fresh, cooked and fillet homogenates) and microbiological status. 'Eating quality' sensory descriptors (texture, odour and oxidation flavour) in cooked salmon fillets were not influenced by dietary P. palmata. Salmon fed 5% PP showed increased overall acceptability compared with those fed PC and 0% PP.<br />Conclusion: Dietary P. palmata was ineffective at providing red coloration in salmon fillets, but pigment deposition enhanced fillets with a yellow/orange colour. Carotenoids from P. palmata may prove to be a natural pigment alternative to canthaxanthin in salmon feeds.<br /> (© 2014 Society of Chemical Industry.)
- Subjects :
- Animals
Aquaculture
Atlantic Ocean
Carotenoids administration & dosage
Carotenoids analysis
Carotenoids metabolism
Cooking
Food Coloring Agents administration & dosage
Food Coloring Agents analysis
Food Coloring Agents metabolism
Food Preferences
Food Storage
Humans
Ireland
Muscle, Skeletal growth & development
Muscle, Skeletal metabolism
Pigments, Biological administration & dosage
Pigments, Biological metabolism
Salmo salar metabolism
Seafood microbiology
Sensation
Surface Properties
Tissue Distribution
Animal Feed
Food Quality
Pigments, Biological analysis
Rhodophyta chemistry
Salmo salar growth & development
Seafood analysis
Seaweed chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1097-0010
- Volume :
- 95
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Journal of the science of food and agriculture
- Publication Type :
- Academic Journal
- Accession number :
- 24852938
- Full Text :
- https://doi.org/10.1002/jsfa.6753