Study of quantitative and qualitative variations in essential oils of sicilian oregano biotypes

Salvatore La Bella, Raffaele Leone, Teresa Tuttolomondo, Claudio Leto, Mario Licata, Giuseppe Virga, Rossana Rando, Edoardo M. Napoli, Maria Rita Fede, Giuseppe Ruberto, Giacomo Dugo

Risultato della ricerca: Articlepeer review

23 Citazioni (Scopus)

Abstract

Essential oil (EO) was extracted using hydrodistillation from samples of Origanum vulgare subspecies hirtum (Link) Ietswaart, gathered from the wild in various parts of Sicily, Italy; GC-FID and GC-MS analyses were subsequently performed. The aim of the study was to analyze the relationship between essential oil yields and the geographical distribution of oregano wild populations based on variations in environmental factors as collection sites. Moreover, the purpose was to group Origanum vulgare subspecies hirtum biotypes according to the chemical composition of the EO. The seven principal components in the EO was thymol (24.0–54.4%), γ-terpinene (9.8–30.5%), ρ-cymene (5.2–18.7%), α-terpinene (2.7–5.7%), carvacrol (0.3–8.3%), terpinen-4-ol (0.5–9.4%) and trans-sabinene hydrate (0.0–12.8%). All the biotypes analyzed were identified as thymol-chemotype. Statistical analysis shows that essential oil yields are mostly affected by weather/climate and topographic characteristics of the collection sites.
Lingua originaleEnglish
pagine (da-a)293-306
Numero di pagine14
RivistaJournal of Essential Oil Research
Volume27
Stato di pubblicazionePublished - 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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