@article{Silva_Barata_Lopes_Barata_Gomes_Silva_Luísa Fernando_2022, title={Chemical Composition of the Essential Oils in Portuguese Daucus Carota Subspecies}, volume={7}, url={https://knepublishing.com/index.php/KnE-Materials/article/view/11610}, DOI={10.18502/kms.v7i1.11610}, abstractNote={<p>This study focused on five different subspecies of Portuguese Daucus carota L., to identify the main compounds in the essential oils of umbels from each subspecies. The isolation of the essential oils was performed by hydrodistillation methods followed by further composition analysis by gas chromatography-mass spectrometry, ultimately demonstrating that each subspecies had different major compounds. This study concluded that the main compounds found in <em>Daucus carota</em> subsp. <em>maritimus</em> were geranyl acetate, followed by trans-methyl-isoeugenol, α-pinene, cis-asarone and elemicin. <em>Daucus carota</em> subsp. <em>hispidus</em> presented with the major compounds as geranyl acetate, caryophyllene oxide, trans-methyl-isoeugenol and sabinene. For <em>Daucus carota</em> subsp. <em>maximus</em>, the major compounds were cis-asarone, geranyl acetate and elemicin, which was similar to <em>Daucus carota</em> subsp. <em>carota</em> which presented with the major compounds as geranyl acetate, cis-asarone, trans-methylisoeugenol and α-pinene. Finally, the major components of <em>Daucus carota</em> subsp. <em>sativus</em> were carotol and daucol.</p> <p><strong>Keywords:</strong> essential oils, chemical composition, <em>Daucus carota</em>, hydrodistillation, GC-MS</p&gt;}, number={1}, journal={KnE Materials Science}, author={Silva, Sofia and Barata, Jasmine and Lopes, Violeta and Barata, Ana and Gomes, Arlindo and Silva, Lúcia and Luísa Fernando, Ana}, year={2022}, month={Aug.}, pages={72–79} }