Volatile Organic Compounds of the Glandular Trichomes of <i>Ocimum basilicum</i> and Artifacts during the Distillation of the Leaves
2021
Bruno Tirillini | Filippo Maggi
Focusing on volatile organic compounds (VOC) of <i>Ocimum basilicum</i>, this study aims to determine the chemical composition of VOC in secretory trichomes and compare it with that of essential oil obtained by hydrodistillation of leaves. The technique of extracting the content of glandular trichomes refers to the microneedle shuttle analysis. Hydrodistillation of fresh leaves was done with a Clevenger distiller (EO). The chemical compositions were determined by GC/FID and GC/MS. The head of the capitate trichomes does not contain volatile compounds. Fifty volatile compounds were detected in the EO, and twenty-four volatile compounds were detected in the VOC; the main components were eugenol (from 15.47 ± 1.05% to 41.89 ± 2.83%) and linalool (from 32.05 ± 2.57% to 28.99 ± 2.32%), respectively. During the distillation of the basil leaves 26 artifacts are formed. The composition of the essential oil of <i>O. basilicum</i> therefore depends not only on the plant but also on the method used to obtain it.
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