Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage
Total lipids, triglycerides, and phospholipids from several lots of beach-spawning capelin and one lot of prespawning, offshore capelin have been determined and examined in detail for fatty acid composition. Generally, but not invariably, female fish contain more fat, the difference being apparent i...
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Canadian Science Publishing
1969
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crcansciencepubl:10.1139/f69-191 2023-12-17T10:44:12+01:00 Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage Ackman, R. G. Ke, P. J. MacCallum, W. A. Adams, D. R. 1969 http://dx.doi.org/10.1139/f69-191 http://www.nrcresearchpress.com/doi/pdf/10.1139/f69-191 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Journal of the Fisheries Research Board of Canada volume 26, issue 8, page 2037-2060 ISSN 0015-296X General Medicine journal-article 1969 crcansciencepubl https://doi.org/10.1139/f69-191 2023-11-19T13:38:49Z Total lipids, triglycerides, and phospholipids from several lots of beach-spawning capelin and one lot of prespawning, offshore capelin have been determined and examined in detail for fatty acid composition. Generally, but not invariably, female fish contain more fat, the difference being apparent in the triglycerides. These are also usually of higher iodine value than triglycerides in the males. During frozen storage the lipids, including triglycerides, in most samples of male capelin undergo more severe hydrolysis than in the females. It is believed that these phenomena are related to bioenergetic relationships by which the males require very rapid catabolism of depot fat and hence nonspecific hydrolysis of fatty acids, whereas the less active females show some selectivity and preferentially catabolize the longer-chain monounsaturated fatty acids.When allowances are made for 16:1 and 18:1 being interchangeable, Newfoundland capelin triglycerides are shown to be essentially similar to eastern Atlantic commercial capelin oil, and may be distinguished by certain composition characteristics from other Canadian commercial oils of comparable iodine value. Details of fatty acid compositions are summarized for nutritional evaluation of capelin and capelin products. Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Journal of the Fisheries Research Board of Canada 26 8 2037 2060 |
institution |
Open Polar |
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Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Medicine |
spellingShingle |
General Medicine Ackman, R. G. Ke, P. J. MacCallum, W. A. Adams, D. R. Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage |
topic_facet |
General Medicine |
description |
Total lipids, triglycerides, and phospholipids from several lots of beach-spawning capelin and one lot of prespawning, offshore capelin have been determined and examined in detail for fatty acid composition. Generally, but not invariably, female fish contain more fat, the difference being apparent in the triglycerides. These are also usually of higher iodine value than triglycerides in the males. During frozen storage the lipids, including triglycerides, in most samples of male capelin undergo more severe hydrolysis than in the females. It is believed that these phenomena are related to bioenergetic relationships by which the males require very rapid catabolism of depot fat and hence nonspecific hydrolysis of fatty acids, whereas the less active females show some selectivity and preferentially catabolize the longer-chain monounsaturated fatty acids.When allowances are made for 16:1 and 18:1 being interchangeable, Newfoundland capelin triglycerides are shown to be essentially similar to eastern Atlantic commercial capelin oil, and may be distinguished by certain composition characteristics from other Canadian commercial oils of comparable iodine value. Details of fatty acid compositions are summarized for nutritional evaluation of capelin and capelin products. |
format |
Article in Journal/Newspaper |
author |
Ackman, R. G. Ke, P. J. MacCallum, W. A. Adams, D. R. |
author_facet |
Ackman, R. G. Ke, P. J. MacCallum, W. A. Adams, D. R. |
author_sort |
Ackman, R. G. |
title |
Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage |
title_short |
Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage |
title_full |
Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage |
title_fullStr |
Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage |
title_full_unstemmed |
Newfoundland Capelin Lipids: Fatty Acid Composition and Alterations During Frozen Storage |
title_sort |
newfoundland capelin lipids: fatty acid composition and alterations during frozen storage |
publisher |
Canadian Science Publishing |
publishDate |
1969 |
url |
http://dx.doi.org/10.1139/f69-191 http://www.nrcresearchpress.com/doi/pdf/10.1139/f69-191 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Journal of the Fisheries Research Board of Canada volume 26, issue 8, page 2037-2060 ISSN 0015-296X |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f69-191 |
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Journal of the Fisheries Research Board of Canada |
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26 |
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8 |
container_start_page |
2037 |
op_container_end_page |
2060 |
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1785561399618961408 |