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  1. Qualitative identification of volatile metabolites from two fungi and three bacteria species cultivated on two media.

    Article - En anglais

    Two fungal species, Aspergillus fumigatus and Penicillium brevicompactum and three bacteria, Klebsiella penumoniae, Enterobacter agglomerans and Streptomyces albus were cultivated on two media, malt extract agar and dichloran glycerol agar.

    The volatile metabolite samples from the cultures were absorbed on Tenas TA and analyzed qualitatively by thermal desorption gas chromatography and with a mass selective detector.

    Various hydrocarbons, alcohols, ketones, esters and terpenes were identified.

    The production was highly dependent on both the medium and the microbial species. 2-Methyl-1-propanol, 2-methyl-1-butanol and 3-methyl-1-butanol were the most commonly produced substances.

    The bacterial species did not produce any hydrocarbons that were characteristic to the fungi (e.g. methyl-1,3-pentadiene, 1-octene and 1,3-octadiene or 8-carbon alcohols 1-octen-3-ol and 3-octanol).

    Instead, K. pneumoniae and E. agglomerans produced 3-hydroxy-2-butanone and 1-hydroxy-2-propanone, which were not produced by the fungi.

    Geosmin and a large number of sesquiterpenes were produced by S. albus.

    Mots-clés Pascal : Finlande, Europe, Homme, Santé et environnement, Pollution air, Chromatographie phase gazeuse, Exploration bactériologique, Humidité, Production, Métabolite, Volatilité, Air intérieur

    Mots-clés Pascal anglais : Finland, Europe, Human, Health and environment, Air pollution, Gas chromatography, Bacteriological investigation, Humidity, Production, Metabolite, Volatility

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0482372

    Code Inist : 002B30A02A. Création : 22/03/2000.