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Abstract
trans-2-Nonenal was identified by gas chromatography-mass spectrometry analysis as the cucumber odor in the cucumber/farinaceous subgroup of mushrooms with farinaceous odors. trans-2-Nonenal was not found in the pure farinaceous or the rancid, oily or fishy/farinaceous variations of this fungal odor. Thus, the odor description cucumber/farinaceous is a valid category. Crushing the fruiting bodies before analysis increased the amount of trans-2-nonenal and other volatiles. The mushrooms species used for these experiments were Tricholoma virgatum, Clitopilus prunulus, Catathelasma ventricosa, Entoloma madidum, Leucopaxillus gentianeus, Nolanea sericea, and N. hirtipes.