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South American plant Clusia blattophila, growing on Nouraghes of French Guiana, produces relatively large amounts of volatile substances in the fragrance of its flowers. C. blattophila is dioecious plant with different flowering time of monosex flowers Male flowers bloom for one night, while female flowers bloom two nights. The volatiles were adsorbed to the adsorbent and washed out with hexane with internal standard. Analysis was performed by two-dimensional gas chromatography with mass spectrometric detection. The aim of my thesis was to determine the qualitative and quantitative characteristics of flower scents of both sexes. I also studied, whether there are differences in production of the major fragrance component, acetoin, during the first night of blooming. The flower fragrance is complex blend of volatiles. In total, 43 different chemicals were identified. Among them were monoterpenes (α-pinene, camphene, β-pinene, myrcene, limonene, (E)-β-ocimene, camphor) sesquiterpenes (α-copaene, β-caryophyllene, cis-α-bergamotene, trans-α-bergamotene, aromadendrene, (E,E)-α-farnesene, δ-cadinene), aldehydes (1-pentanal, 1-hexanal, 1-octanal, n-decanal), also four ketones (acetoin and its dimer, 2,5-hexanedione, 6-methylhept-5-en-2-one), alcohol butane-2,3-diol, carboxylic acid 2-methylpropanoic,... |
