Author/Authors :
Hajdari, Avni Department of Biology - Faculty of Mathematical and Natural Sciences - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo - Institute of Biological and Environmental Research - Faculty of Mathematical and Natural Sciences - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo , Mustafa, Behxhet Department of Biology - Faculty of Mathematical and Natural Sciences - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo - Institute of Biological and Environmental Research - Faculty of Mathematical and Natural Sciences - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo , Nebija, Dashnor Department of Pharmaceutical Chemistry - Faculty of Medicine - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo , Selimi, Hyrmete Department of Biology - Faculty of Mathematical and Natural Sciences - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo , Veselaj, Zeqir Faculty of Education - University of Prishtina “Hasan Prishtina” - Mother Teresa - 1000 Prishtine - Kosovo , Breznica, Pranvera Department of Pharmaceutical Chemistry - Faculty of Medicine - University of Prishtina - Mother Theresa Street - 10000 Prishtine - Kosovo , Leah Quave, Cassandra Center for the Study of Human Health - Emory University - 550 Asbury Circle - Candler Library 107E - Atlanta - GA 30322 - USA - Department of Dermatology - Emory University School of Medicine - 1518 Clifton Road NE - CNR 5035 - Atlanta - GA 30322, USA , Novak, Johannes Institute of Animal Nutrition and Functional Plant Compounds - University of Veterinary Medicine - Veterinarplatz 1 - ¨ 1210 Vienna - Austria
Abstract :
The principal aim of this study was to analyze the chemical composition and qualitative and quantitative variability of essential oils obtained from seven naturally grown populations of the Pinus peuce Grisebach, Pinaceae in Kosovo. Plant materials were collected
from three populations in the Sharri National Park and from four other populations in the Bjeshket e Nemuna National Park, ¨ in Kosovo. Essential oils were obtained by steam distillation and analyzed by GC-FID (Gas Chromatography-Flame Ionization
Detection) and GC-MS (Gas Chromatography-Mass Spectrometry). The results showed that the yield of essential oils (v/w dry
weight) varied depending on the origin of population and the plant organs and ranged from 0.7 to 3.3%. In total, 51 compounds
were identified. The main compounds were 𝛼-pinene (needles: 21.6–34.9%; twigs: 11.0–24%), 𝛽-phellandrene (needles: 4.1–27.7;
twigs: 29.0–49.8%), and 𝛽-pinene (needles: 10.0–16.1; twigs: 6.9–20.7%). HCA (Hierarchical Cluster Analysis) and PCA (Principal Component Analyses) were used to assess geographical variations in essential oil composition. Statistical analysis showed that the analyzed populations are grouped in three main clusters which seem to reflect microclimatic conditions on the chemical composition of the essential oils.
Keywords :
Essential Oil Composition , Pinus peuce Griseb. Needles , Twigs , National Parks , Kosovo
