Antifungal activity of the esssential oil of seseli rigidum waldst. & kit. (apiaceae) on the growth of isolates of candida albicans

Abstract

Ispitivano je delovanje etarskih ulja korena, herbe i ploda devesilja, Seseli rigidum iz dve prirodne populacije na 28 izolata Candida albicans i jedan standardni soj C. albicans ATCC 10259. Sojevi C. albicans koji su korišćeni u ovom ispitivanju izolovani su iz orofaringealnog brisa, vaginalnog i/ili cervikalnog brisa, brisa oka, brisa rane, fecesa i urina. Ispitivani sojevi su pokazali visok stepen rezistencije prema delovanju kontrolnog antimikotika flukonazola, a u nešto manjoj meri i amfotericina B. Etarska ulja devesilja, primenjena u koncentracijama 50-200 μg/ml, uzrokovala su inhibiciju rasta ispitivanih sojeva (28,6-46,4% testiranih sojeva). Inhibitorni efekat na tri soja C. albicans ostvaren je sa etarskim uljem korena, sa oba lokaliteta, već pri koncentraciji od 50 μg/ml. Dominantno jedinjenje u ovim etarskim uljima je predstavljao falkarinol (57,5% i 88,8%). Slabiju aktivnost su ispoljila etarska ulje herbe i ploda devesilja, koja su u koncentraciji od 100 μg/ml inhibirala rast pojedinih ispitivanih sojeva. Kod etarskog ulja ploda uočeno je nešto izraženije delovanje etarskog ulja populacije iz Brđanske klisure, koje je sadržalo veću količinu α-pinena i β-felandrena, a manju količinu sabinena. Dobijeni rezultati su pokazali da etarska ulja korena, herbe i ploda devesilja ispoljavaju značajnu antifungalnu aktivnost na pojedine rezistentne sojeve C. albicans.

The antimicrobial activity of the essential oils of root, aerial parts and fruit from two natural populations of Seseli rigidum was tested against 28 isolates of Candida albicans and one laboratory control strain of C. albicans ATCC 10259. Strains of C. albicans were isolated from oropharyngeal swabs, vaginal and/or cervical swabs, eye swabs, wound swabs, feces and urine. The investigated strains showed high level of resistance towards the activity of control antimycotic agent fluconazole and to a lower extent towards amphotericin B. The S. rigidum essential oils, in the concentrations of 50-200 μg/ml, inhibited the growth of investigated strains (28.6-46.4% of tested strains). The essential oils of root from both localities showed antifungal effect at the concentration 50 μg/ml. The dominant compound in the root essential oils was falcarinol (57.5% and 88.8%). The lower activity was obtained with the essential oil of aerial parts or fruit. The 100 μg/ml of essential oil of aerial parts showed significant effect on C. albicans strains. The essential oil of fruit from population from Brdjanska gorge exerted somehow higher effect. It was characterised by higher α-pinene and β-phellandrene content and lower amount of sabinene. The obtained results revealed the significant antifungal effects of S. rigidum root, aerial parts and fruit essential oils against resistant strains of C. albicans.