| Cadaveric volatile organic compounds released by decaying pig carcasses (Sus domesticus L.) in different biotopes. | |
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MedLine Citation:
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PMID: 19423246 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Forensic entomology uses pig carcasses to surrogate human decomposition and to investigate the entomofaunal colonization. Insects communicate with their environment through the use of chemical mediators, which in the case of necrophagous insects, may consist in the cadaveric volatile organic compounds (VOCs) released by the corpse under decomposition. Previous studies have focused on cadaveric VOCs released from human corpses. Nevertheless, studies on human corpses are restricted for many reasons, including ethics. Forensic entomologists use pig as animal model but very few information are available about the decompositional VOCs released by a decaying pig carcass. We here tested a passive sampling technique, the Radiello diffusive sampler, to monitor the cadaveric VOCs released by decomposing pig carcasses in three biotopes (crop field, forest, urban site). A total of 104 chemical compounds, exclusively produced by the decompositional process, were identified by thermal desorption interfaced with gas chromatography and mass spectrometry (TDS-GC-MS). Ninety, 85 and 57 cadaveric VOCs were identified on pig carcasses laying on the agricultural site, the forest biotope and in the urban site, respectively. The main cadaveric VOCs are acids, cyclic hydrocarbons, oxygenated compounds, sulfur and nitrogen compounds. A better knowledge of the smell of death and their volatile constituents may have many applications in forensic sciences. |
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Authors:
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J Dekeirsschieter; F J Verheggen; M Gohy; F Hubrecht; L Bourguignon; G Lognay; E Haubruge |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-05-06 |
Journal Detail:
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Title: Forensic science international Volume: 189 ISSN: 1872-6283 ISO Abbreviation: Forensic Sci. Int. Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2009-06-22 Completed Date: 2009-11-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7902034 Medline TA: Forensic Sci Int Country: Ireland |
Other Details:
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Languages: eng Pagination: 46-53 Citation Subset: IM |
Affiliation:
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Department of Functional and Evolutionary Entomology, Gembloux Agricultural University, 2 Passage des Déportés, 5030 Gembloux, Belgium. entomologie@fsagx.ac.be |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acids
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analysis Alcohols / analysis Aldehydes / analysis Animals Environment Environmental Monitoring* Esters / analysis Forensic Pathology Gas Chromatography-Mass Spectrometry Humidity Hydrocarbons, Acyclic / analysis Hydrocarbons, Cyclic / analysis Ketones / analysis Nitrogen Compounds / analysis Postmortem Changes* Principal Component Analysis Sulfur Compounds / analysis Swine Temperature Trees Volatilization* |
| Chemical | |
Reg. No./Substance:
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0/Acids; 0/Alcohols; 0/Aldehydes; 0/Esters; 0/Hydrocarbons, Acyclic; 0/Hydrocarbons, Cyclic; 0/Ketones; 0/Nitrogen Compounds; 0/Sulfur Compounds |
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