Seasonal changes in crude and lipid composition of herring fillets, byproducts, and respective produced oils
| Autor: | Isabel Aidos, Joop Luten, Remko M. Boom, Albert van der Padt |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Crude composition
Raw material Processing Crude oil Sectie Proceskunde Sub-department of Food and Bioprocess Engineering Herring Fish Oils Fish Products medicine Animals Food science Netherlands Institute for Fisheries Research Seasonal changes Food Process Engineering Unsaturated fatty acid VLAG chemistry.chemical_classification biology Chemistry Fatty Acids Fish fillet General Chemistry Clupea Seasonality Fish oil biology.organism_classification medicine.disease Lipids Biochemistry Rijksinstituut voor Visserijonderzoek Fatty Acids Unsaturated PUFAs Herring byproducts Seasons General Agricultural and Biological Sciences Polyunsaturated fatty acid |
| Zdroj: | Journal of Agricultural and Food Chemistry 50 (2002) 16 Journal of Agricultural and Food Chemistry, 50(16), 4589-4599 |
| ISSN: | 0021-8561 |
| Popis: | Crude and fatty acid composition analyses were performed on fillets, byproducts, and oil originating from herring (Clupea harengus) caught off the North Sea from June 1999 to January 2001. Monthly statistical differences were found in the fat content, the range of variation being larger in fillets than in byproducts. The most consistent change observed in fillets was an increase of unsaturation from May to September reflected in a reduced percentage of monounsaturated fatty acids, whereas for byproducts and oil this trend was not so well defined. The results indicated that the lowest values of the total amount of polyunsaturated fatty acids (PUFAs) in the oil were found from January to March (approximately 14%), coinciding with the postspawning and starvation period. In contrast, the highest values were found from June to August (approximately 23%). Thus, the herring byproducts are all year an adequate raw material for fish oil production; however, during the summer they are richer in PUFAs. |
| Databáze: | OpenAIRE |
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