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Issue 10, 2009
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JEM Spotlight: Fungi, mycotoxins and microbial volatile organic compounds in mouldy interiors from water-damaged buildings

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Abstract

Concerns have been raised about exposure to mycotoxin producing fungi and the microbial volatile organic compounds (MVOCs) they produce in indoor environments. Therefore, the presence of fungi and mycotoxins was investigated in 99 samples (air, dust, wallpaper, mycelium or silicone) collected in the mouldy interiors of seven water-damaged buildings. In addition, volatile organic compounds (VOCs) were sampled. The mycotoxins were analysed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) (20 target mycotoxins) and quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS). Morphological and molecular identifications of fungi were performed. Of the 99 samples analysed, the presence of one or more mycotoxins was shown in 62 samples by means of LC-MS/MS analysis. The mycotoxins found were mainly roquefortine C, chaetoglobosin A and sterigmatocystin but also roridin E, ochratoxin A, aflatoxin B1 and aflatoxin B2 were detected. Q-TOF-MS analysis elucidated the possible occurrence of another 42 different fungal metabolites. In general, the fungi identified matched well with the mycotoxins detected. The most common fungal species found were Penicillium chrysogenum, Aspergillus versicolor (group), Chaetomium spp. and Cladosporium spp. In addition, one hundred and seventeen (M)VOCs were identified, especially linear alkanes (C9–C17), aldehydes, aromatic compounds and monoterpenes.

Graphical abstract: JEM Spotlight: Fungi, mycotoxins and microbial volatile organic compounds in mouldy interiors from water-damaged buildings

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Publication details

The article was received on 07 Apr 2009, accepted on 02 Jul 2009 and first published on 20 Jul 2009


Article type: Paper
DOI: 10.1039/B906856B
Citation: J. Environ. Monit., 2009,11, 1849-1858
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    JEM Spotlight: Fungi, mycotoxins and microbial volatile organic compounds in mouldy interiors from water-damaged buildings

    V. Polizzi, B. Delmulle, A. Adams, A. Moretti, A. Susca, A. M. Picco, Y. Rosseel, R. Kindt, J. Van Bocxlaer, N. De Kimpe, C. Van Peteghem and S. De Saeger, J. Environ. Monit., 2009, 11, 1849
    DOI: 10.1039/B906856B

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