Oil Identification of harp seal and other select marine mammals
Because of the rich omega-3 fatty acids content, harp seal (Pagophilus groenlandicus) oil is a popular supplement that is packaged as pills in Canada and sold for medicinal purposes, although this practice is banned in the United States. Due to US regulations, it is important to be able to distingui...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Forensic Science International: Animals and Environments |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666937424000039 |
| _version_ | 1827215299432153088 |
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| author | Megahn H. Pinedo Deborah A. Duffield Dalin N. D’Alessandro Erin R. Price Edgard O. Espinoza |
| author_facet | Megahn H. Pinedo Deborah A. Duffield Dalin N. D’Alessandro Erin R. Price Edgard O. Espinoza |
| author_sort | Megahn H. Pinedo |
| collection | DOAJ |
| description | Because of the rich omega-3 fatty acids content, harp seal (Pagophilus groenlandicus) oil is a popular supplement that is packaged as pills in Canada and sold for medicinal purposes, although this practice is banned in the United States. Due to US regulations, it is important to be able to distinguish between fish oil and seal oil, but the taxonomic determination of oils provenance has been a difficult problem to solve. In this study, Direct Analysis in Real Time time-of-flight mass spectrometry (DART TOFMS) was used to analyze the chemotypes of blubber samples collected from seven species of marine mammals, including seals, sea lions, and a porpoise. Results indicated that the chemotype profiles found in negative-ion mode could be used to separate all of the species using Discriminant Analysis of Principal Components (DAPC). Consequently, this study suggests that it may be possible to identify the taxonomic source of marine mammal oils based on chemical chemotypes. |
| first_indexed | 2024-03-08T06:20:10Z |
| format | Article |
| id | doaj.art-325f9ed3781242798757e362f11d5b02 |
| institution | Directory Open Access Journal |
| issn | 2666-9374 |
| language | English |
| last_indexed | 2025-03-21T14:45:01Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Forensic Science International: Animals and Environments |
| spelling | doaj.art-325f9ed3781242798757e362f11d5b022024-06-21T08:58:00ZengElsevierForensic Science International: Animals and Environments2666-93742024-06-015100083Oil Identification of harp seal and other select marine mammalsMegahn H. Pinedo0Deborah A. Duffield1Dalin N. D’Alessandro2Erin R. Price3Edgard O. Espinoza4US Forest Service International Programs Wood Identification and Screening Center, Ashland , OR, USADepartment of Biology, Portland State University, Portland, OR, USADepartment of Biology, Portland State University, Portland, OR, USAUS Forest Service International Programs Wood Identification and Screening Center, Ashland , OR, USAUS National Fish and Wildlife Forensic Laboratory, Ashland, OR, USA; Corresponding author.Because of the rich omega-3 fatty acids content, harp seal (Pagophilus groenlandicus) oil is a popular supplement that is packaged as pills in Canada and sold for medicinal purposes, although this practice is banned in the United States. Due to US regulations, it is important to be able to distinguish between fish oil and seal oil, but the taxonomic determination of oils provenance has been a difficult problem to solve. In this study, Direct Analysis in Real Time time-of-flight mass spectrometry (DART TOFMS) was used to analyze the chemotypes of blubber samples collected from seven species of marine mammals, including seals, sea lions, and a porpoise. Results indicated that the chemotype profiles found in negative-ion mode could be used to separate all of the species using Discriminant Analysis of Principal Components (DAPC). Consequently, this study suggests that it may be possible to identify the taxonomic source of marine mammal oils based on chemical chemotypes.http://www.sciencedirect.com/science/article/pii/S2666937424000039Marine mammalBlubberOilForensicDARTChemotaxonomy |
| spellingShingle | Megahn H. Pinedo Deborah A. Duffield Dalin N. D’Alessandro Erin R. Price Edgard O. Espinoza Oil Identification of harp seal and other select marine mammals Forensic Science International: Animals and Environments Marine mammal Blubber Oil Forensic DART Chemotaxonomy |
| title | Oil Identification of harp seal and other select marine mammals |
| title_full | Oil Identification of harp seal and other select marine mammals |
| title_fullStr | Oil Identification of harp seal and other select marine mammals |
| title_full_unstemmed | Oil Identification of harp seal and other select marine mammals |
| title_short | Oil Identification of harp seal and other select marine mammals |
| title_sort | oil identification of harp seal and other select marine mammals |
| topic | Marine mammal Blubber Oil Forensic DART Chemotaxonomy |
| url | http://www.sciencedirect.com/science/article/pii/S2666937424000039 |
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