Freshwater Fish Oils: Yields and Composition of Oils from Reduction of Sheepshead, Tullibee, Maria, and Alewife
Oils were produced from four species of freshwater fish (sheepshead, Aplodinotus grunniens; tullibee, Coregonus artedii; maria, Lota lota; alewife, Alosa pseudoharengus) in a commercial reduction plant. The oil iodine values were, respectively, 123, 143, 158, and 165. Fatty acids were determined by...
| Published in: | Journal of the Fisheries Research Board of Canada |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1967
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/f67-104 http://www.nrcresearchpress.com/doi/pdf/10.1139/f67-104 |
| Summary: | Oils were produced from four species of freshwater fish (sheepshead, Aplodinotus grunniens; tullibee, Coregonus artedii; maria, Lota lota; alewife, Alosa pseudoharengus) in a commercial reduction plant. The oil iodine values were, respectively, 123, 143, 158, and 165. Fatty acids were determined by gas–liquid chromatography. All four oils showed higher levels of C 16 and C 18 fatty acids than corresponding marine oils, but only sheepshead and tullibee had distinctly low levels of C 22 acids. The four freshwater oils differed from most marine oils in having higher proportions of linoleic, linolenic, and arachidonic acids. In most respects fatty acid compositions of freshwater fish oils were not dissimilar from marine oils. |
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