Document Detail


Cadaveric volatile organic compounds released by decaying pig carcasses (Sus domesticus L.) in different biotopes.
MedLine Citation:
PMID:  19423246     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
J Dekeirsschieter; F J Verheggen; M Gohy; F Hubrecht; L Bourguignon; G Lognay; E Haubruge
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-06
Journal Detail:
Title:  Forensic science international     Volume:  189     ISSN:  1872-6283     ISO Abbreviation:  Forensic Sci. Int.     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-06-22     Completed Date:  2009-11-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7902034     Medline TA:  Forensic Sci Int     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  46-53     Citation Subset:  IM    
Affiliation:
Department of Functional and Evolutionary Entomology, Gembloux Agricultural University, 2 Passage des Déportés, 5030 Gembloux, Belgium. entomologie@fsagx.ac.be
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MeSH Terms
Descriptor/Qualifier:
Acids / 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:
0/Acids; 0/Alcohols; 0/Aldehydes; 0/Esters; 0/Hydrocarbons, Acyclic; 0/Hydrocarbons, Cyclic; 0/Ketones; 0/Nitrogen Compounds; 0/Sulfur Compounds

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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