Chemical analysis of oregano (Origanum vulgare) essential oil

Nela Kotrčová

Bakalářská práce

Abstract:

The aim of this bachelor thesis was to perform a chemical analysis of volatile compounds contained in Origanum vulgare essential oil. In the literature review, there were described the main information about oregano, its most important bioactive compounds (carvacrol, thymol, linalool, p-cymene, γ-terpinene) as well as its medicinal benefits, and the methods of oil obtaining and analysing. In the experimental part of this work, essential oils were obtained from 3 types of dried oregano leaves available on the Czech market, extracted using hydro-distillation method. One sample of commercially produced oregano essential oil, which was used for this research was bought on the internet. Those samples were analysed by gas chromatography with mass spectrometry (GC/MS). Compounds were identified, and results were compared between each other and with literature data. The results confirmed the presence of carvacrol, thymol, linalool, p-cymene, γ-terpinene as the main constituents of oregano essential oil. Results had revealed minor differences in chemical composition among the 4 samples. In comparison with literature data, there were found substantial differences in chemical composition of analysed samples.

Keywords

Oregano, GC/MS analysis, essential oil, Origanum vulgare, extraction

Jazyk práce: angličtina

Datum vytvoření / odevzdání či podání práce: 14. 4. 2022

Obhajoba závěrečné práce

• Vedoucí: Ing. Klára Urbanová, Ph.D.

Česká zemědělská univerzita v Praze

Fakulta tropického zemědělství

Bakalářský studijní program:
International Cooperation in Agricultural and Rural Development