Abstract
Herein, we report on the results of solvent- and sorbent-free HS-GC-MS (headspace - gas chromatography - mass spectrometry) analysis of the headspace volatiles (HSVs) of fruits of cultivated melon (Cucumis melo L. cultivar ?ananas dinja? [pineapple melon]) and pear (Pyrus communis L. cultivar ?Julska lepotica? [the beauty of July]), as well as of underground parts of carrot (Daucus carota L. cultivar ?nantes?). The obtained results are comparable to those of the traditional HS method. The main HSVs of melon were 2-methylbutyl acetate (42.9%), ethyl butanoate (11.4%), butyl acetate (10.1%), and methyl 2-methylbutanoate (9.8%); these are mostly biosynthetically related to amino acids. LOX (lipoxygenase) pathway products, hexanal (32.9%) and 1-hexanol (20.8%), and s sesquiterpene hydrocarbon, (E,E)-?-farnesene (24.9%), were found to be the dominant constituents of the pear headspace profile. The dominant HSVs of carrot underground parts were the monoterpenes sabinene (29.2%) and ?-pinene (21.5%).
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