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Antimicrobial activity of petroleum ether and methanolic extracts from fruits of Seseli devenyense Simonk. and the herb of Peucedanum luxurians Tamam.

100%
Widelski J., Grzegorczyk A., Malm A., Chinou I., Głowniak K.
Current Issues in Pharmacy and Medical Sciences
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2015
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vol. 28
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issue 4
257-259
EN
Plants of the Apiaceae family usually contain coumarins. These are used worldwide in traditional medicine, as well as in modern therapeutics. The aim of our study was to determine the antimicrobial activity of four extracts (methanolic and petroleum ether extracts) obtained from two Apiaceae species: Seseli devenyense (fruits) and Peucedanum luxurians (herb). The activity of the investigated extracts was tested against 7 strains of Gram+ bacteria, and 7 strains of Gram-, as well as three of yeast. The results of this show that the best activity of such extracts (specifically, by way of petroleum ether) was seen as being against Staphylococcus aureus strains.
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Essential oil composition and variability of Hypericum perforatum L. from wild population in Kosovo

86%
Hajdari A., Mustafa B., Nebija D., Kashtanjeva A., Widelski J., Glowniak K., Novak J.
Current Issues in Pharmacy and Medical Sciences
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2014
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vol. 27
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issue 1
51-54
EN
Aerial parts of Hypericum perforatum L. (Hypericaceae) were collected from five wild populations in Kosovo, with aim to investigate the chemical composition and natural variation of essential oils between wild populations. This species could be considered of economic potential as it is widespread in Kosovo, on the other hand H. perforatum is one of the best-known medicinal herbs used in Kosovo folk medicine. Essential oils were obtained by steam distillation and analysed by GC-FID and GC-MS. Sixty-seven components were identified. The yields of essential oils differed depending on the population and ranged from 0.04 to 0.26% based on dry weight. The aerial parts of H. perforatum were characterized by the following main constituents: 2-methyl-octane (1.1-15.5%), α-pinene (3.7-36.5%), β-caryophyllene (1.2-12.4%), caryophyllene oxide (3.3-17.7%) and n-tetradecanol (3.6- 10.4%). Hierarchical cluster analysis revealed that the concentration of components depends on the origin of the plant populations, thus α-pinene and 2-methyl-octane were present in the highest concentration in population originating from Gjakove, Prizren and Ferizaj, whereas in the populations originating from Peje and Prishtine the most abundant constituents were caryophyllene oxide, β-caryophyllene and n-tetradecanol. Further investigation is needed to establish the natural variability and chemopolymorphism of this species in the territory of Kosovo, which should be supported by molecular level analyses.
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