Document Detail


Detection of fungal development in a closed environment through the identification of specific VOC: demonstration of a specific VOC fingerprint for fungal development.
MedLine Citation:
PMID:  18817947     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The occurrence of disease amongst the occupants of "mouldy" environments has been widely described in the literature. However, the detection of such moulds in closed environments remains difficult, particularly in the event of recent (before the first deterioration) or masked contamination (behind a material). In this context, the present study aimed to determine a specific chemical fingerprint for fungal development detectable in closed environments (dwellings, office, museum...). To achieve this, chemical emissions from sterile and artificially contaminated by moulds materials were analyzed and compared using a descriptive statistical method. Principal Component Analysis is thus chosen to analyze the results. PCA generated optimum and similar graphical representations of the scatterplot representing the data matrix. This statistical approach made it possible to identify an emission fingerprint without applying any preconception as to the type of emitted compound. Statistical analysis of the data then enabled confirmation of the impact of moulds on total VOC emissions. This emission of specific compounds resulted in obtaining a signature for the presence of fungal development in an environment, defined by specific ions. This analysis, and use of these ions applied to dwellings, made it possible to distinguish those with proven fungal development from those with no sign of mould or with a context favorable to fungal development, thus demonstrating that a chemical fingerprint specific to fungal development could be detected in indoor environments.
Authors:
Stéphane Moularat; Enric Robine; Olivier Ramalho; Mehmet A Oturan
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Publication Detail:
Type:  Journal Article     Date:  2008-09-24
Journal Detail:
Title:  The Science of the total environment     Volume:  407     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-25     Completed Date:  2009-01-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  139-46     Citation Subset:  IM    
Affiliation:
Centre Scientifique et Technique du Bâtiment (CSTB), Laboratoire de Microbiologie des Environnements Intérieurs - 84, av. Jean Jaurès - Champs-sur-Marne, 77447 Marne-la-Vallée, France.
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MeSH Terms
Descriptor/Qualifier:
Air Pollution, Indoor / analysis*
Aspergillus / growth & development,  metabolism
Construction Materials / microbiology*
Environment, Controlled*
Environmental Monitoring / methods*
Fungi / growth & development*,  metabolism
Gas Chromatography-Mass Spectrometry
Organic Chemicals / analysis,  chemistry,  metabolism
Penicillium / growth & development,  metabolism
Principal Component Analysis
Volatilization
Chemical
Reg. No./Substance:
0/Organic Chemicals

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