Naslov
Micromeria croatica (Pers.) Schott - Chemical Composition and Variability of Essential Oil depending on Locality

Autori
Vuko, Elma ; Rusak, Gordana ; Dunkić, Valerija ; Kremer, Dario ; Kosalec, Ivan ; Apostolska, Biljana ; Bezić, Nada

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
10th CMAPSEEC: BOOK OF ABSTRACTS / Carović-Stanko, K ; Grdiša, M. - Zagreb, 2018, 122-122

ISBN
978-953-7878-82-5

Skup
10th Conference on Medicinal and Aromatic Plants of Southeast European Countries (CMAPSEEC 2018)

Mjesto i datum
Split, Hrvatska, 20.05.2018. - 24.05.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Micromeria croatica ; essential oil ; β-caryophyllene ; caryophyllene oxide

Sažetak
The essential oil (EO) was isolated from Micromeria croatica (Pers.) Schott, an endemic plant species of the Dinarides mountain range. The plant material was collected at localities on Mt. Velebit (localities Bojinac, Bačić kuk and Stupačinovo) in Croatia. The EO was subjected to detailed GC and GC-MS analysis to determine chemical composition and the similarity and variability in oil composition depending on locality. The overall composition of EO of M. croatica is characterized by a high percentage of sesquiterpenes and monoterpenes. In the oil from Bojinac, sesquiterpene β- caryophyllene (25.2%) is the dominant component, followed by oxygenated sesquiterpene caryophyllene oxide (10.1%). In the oil from Bačić kuk, the cumulative amount of monoterpenes is substantially higher than sesquiterpenes, although the oxygenated sesquiterpene caryophyllene oxide (21.1%) is a major component of this oil. In the oil from Stupačinovo, caryophyllene oxide (20.2%) is the major compound, followed by β-caryophyllene (10.2%). To explore the relationship between the oil samples from various populations and their relation to specific volatile compounds, the GC-MS data were analysed with Principal component analysis. Based on these results, the EO composition in the studied populations of M. croatica can be considered to be quite uniform. A somewhat more pronounced degree of specificity was observed in the composition of oil from Stupačinovo. Cluster analysis classifies the number of samples studied into groups according to the chemical composition of essential oil by ‘magnifying’ their similarities. Multivariate analysis of the samples differentiated two well-defined clusters of M. croatica, in which one cluster included the localities Bojinac and Bačić kuk, and the locality Stupačinovo was isolated in its own cluster, indicating the specificity of its EO composition.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

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