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Appl. Environ. Microbiol., Aug 1995, 2911-2918, Vol 61, No. 8
Copyright © 1995, American Society for Microbiology

Identification of Volatile Metabolites from Five Fungal Species Cultivated on Two Media

A Sunesson, WHJ Vaes, C Nilsson, G Blomquist, B Andersson and R Carlson
Analytical Chemistry Division, National Institute of Occupational Health, S-907 13 Umea, Sweden, and Section for Chemistry, Institute for Mathematics and Physical Sciences, University of Tromso, N-9037 Tromso, Norway

Five fungal species, Aspergillus versicolor, Penicillium commune, Cladosporium cladosporioides, Paecilomyces variotii, and Phialophora fastigiata, were cultivated on two media, malt extract agar and dichloran glycerol agar. Culture flasks provided with inlet and outlet tubes were used and purified, and humidified air was constantly led through the flasks. Air samples from the cultures were sorbed on Tenax GR and analyzed by thermal desorption-gas chromatography. The produced volatile metabolites were analyzed by mass spectrometry. Various hydrocarbons, alcohols, ketones, ethers, esters, sulfur-containing compounds, and terpenes were identified. The most commonly produced substances were 2-methyl-1-propanol, 2-methyl-1-butanol, 3-methyl-1-butanol, 3-methylfuran, and dimethyl disulfide. The production was highly dependent on both medium and species.

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