Summary
The yeast fungus Dipodascus aggregatus was grown aerobically in a synthetic nutrient solution and the volatile compounds produced were concentrated. Identification of the volatiles was performed by combined gas chromatographymass spectrometry or by one of these methods. The compounds identified were 11 esters, 9 alcohols, 5 acids and 3 carbonyls.
The time course production of volatile neutral compounds was followed. During the phase of no apparent growth only a few substances were formed (mostly alcohols). The rapid phase of growth was characterized by an intense synthesis of many compounds in relatively high concentrations and later a sudden decrease in the number and amounts of substances. A slow successive, decline in the number and amounts of volatile components was observed during the phase of no net growth.
The volatiles emitted by the fungus were concentrated, when most of the compounds were most abundant and the relative amounts of the major volatile neutral compounds were determined. The main components were ethyl acetate, ethyl propionate and ethanol.
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Norrman, J. Production of volatile organic compounds by the yeast fungus Dipodascus aggregatus . Archiv. Mikrobiol. 68, 133–149 (1969). https://doi.org/10.1007/BF00413873
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DOI: https://doi.org/10.1007/BF00413873