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Volatile metabolites from microorganisms grown on humid building materials and synthetic media

Content Provider	Royal Society of Chemistry (RSC)
Author	Levin, Jan-Olof Blomquist, Göran Claeson, Anna-Sara Sunesson, Anna-Lena
Copyright Year	2002
Abstract	Growth of different microorganisms is often related to dampness in buildings. Both fungi and bacteria produce complicated mixtures of volatile organic compounds that include hydrocarbons, alcohols, ketones, sulfur- and nitrogen-containing compounds etc. Microbially produced substances are one possible explanation of odour problems and negative health effects in buildings affected by microbial growth. A mixture of five fungi, Aspergillus versicolor, Fusarium culmorum, Penicillium chrysogenum, Ulocladium botrytis and Wallemia sebi were grown on three different humid building materials (pinewood, particle board and gypsum board) and on one synthetic medium. Six different sampling methods were used, to be able to collect both non-reactive volatile organic compounds and reactive compounds such as volatile amines, aldehydes and carboxylic acids. Analysis was performed using gas chromatography, high-performance liquid chromatography and ion chromatography, mass spectrometry was used for identification of compounds. The main microbially produced metabolites found on pinewood were ketones (e.g. 2-heptanone) and alcohols (e.g. 2-methyl-1-propanol). Some of these compounds were also found on particle board, gypsum board and the synthetic medium, but there were more differences than similarities between the materials. For example, dimethoxymethane and 1,3,5-trioxepane and some nitrogen containing compounds were found only on particle board. The metabolite production on gypsum board was very low, although some terpenes (e.g. 3-carene) could be identified as fungal metabolites. On all materials, except gypsum board, the emission of aldehydes decreased during microbial growth. No low molecular weight carboxylic acids were identified.
Starting Page	667
Ending Page	672
Page Count	6
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	4
Issue Number	5
Journal	Journal of Environmental Monitoring
DOI	10.1039/b202571j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Penicillium Wallemia Fungus Bacteria Volatile organic compound Sulfur Aspergillus versicolor Fusarium Penicillium chrysogenum Ulocladium Wallemiomycetes Particle board Gypsum Gas chromatography High-performance liquid chromatography Ion Chromatography Mass spectrometry 2-Heptanone 1-Propanol Dimethoxymethane Nitrogen Metabolite
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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