Chemical composition of the muscle tissue of ray (Raja radiata) from Terranova
3 páginas, 3 tablas The proximate analysis, nitrogen compound content and lipid and fatty acid analysis of the muscle of frozen ray (Raja radiata) caught in Terranova have been studied. The proximate analyses of the muscle were: 15% real protein, 1% non-protein nitrogen, 78% humidity and a fatty aci...
| Published in: | Food Chemistry |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Elsevier
1992
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10261/60622 https://doi.org/10.1016/0308-8146(92)90324-U |
| Summary: | 3 páginas, 3 tablas The proximate analysis, nitrogen compound content and lipid and fatty acid analysis of the muscle of frozen ray (Raja radiata) caught in Terranova have been studied. The proximate analyses of the muscle were: 15% real protein, 1% non-protein nitrogen, 78% humidity and a fatty acid content lower than 1%. The urea reaches values of 2%. In the lipid fraction 14 fatty acids were identified. Paimitic acid (16:0) and stearic acid (18:0) were the majority fatty acids and represent 61.55% and 33-86°/, of the total saturated fatty acids. Oleic acid (18:1) was the most abundant of the monounsaturated fatty acids and corresponds to 72.72% of the total of these. Arachidonie acid (20:4), eicosapentaenoic acid (20:5) and docosahexaenoic acid (22:6) were the most predominant polyunsaturated acids, forming 12.95, 57.22 and 23.67% of the total of polyunsaturated fatty acids respectively. The results show that the lipid fraction of the ray (Raja radiata) is an excellent source of polyunsaturated fatty acids with high levels of omega-3 (n-3) especially the eicosapentaenoic and docosahexaenoic acids. This study has been carried out with the backing of the lnterministerial Commission of Science and Technology (CICYT) in the Research Project AL189-0555. Peer reviewed |
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