In the presented work are the results of evaluation of four cultivars of grape in the period from veraison phase of the over ripening. Sampling of berries were in the three times over that period and were marked as unripen, ripe and over ripe berries. In this work a content of compound are divided as volatiles and non volatiles. As an evaluation criterion of non volatiles are soluble solid, titratable acid and impact firmness during the whole ripening. From formulated ripening index as soluble solids multiplied by impact firmness and divided by titratable acid were obtained values from 11 to 18 and the cultivars was in order -- Frankovka, Tramín červený, Chardonnay and Müller Thurgau. Volatiles in berries were analysed by gas chromatograph with mass spectroscopy. From the all compounds were quantified terpene lactons, a hexanols, hexanals a their esters. The concentrations values of terpene are in the level about nanograms per kilogram.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:250160 |
| Date | January 2015 |
| Creators | Prát, Oto |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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