Component composition of the extracts and essential oils from the <i>Alhagi canescens</i>, growing in Uzbekistan and their antimicrobial activity

Abstract

The volatile compounds of hexane, benzene extracts and essential oils (EOs) isolated by steam- and hydrodistillation methods from aerial part of <i>Alhagi canescens</i> were studied by GC-MS analysis. Seventeen components were found in the hexane and benzene extracts, among them palmitic acid (25.2 and 22.1%), neophytadiene (7.3 and 22.3%), <i>cis</i>-chrysanthenyl acetate (11.0% in benzene), <i>cis</i>-geranyl acetate (7.8% in benzene) were major components. The first time fifty-six volatile compounds were identified in the EOs and camphor (5.9 and 27.8%), bicyclogermacrene (13.4 and 4.0%), α-copaene (6.1 and 2.6%), (-)-germacrene D (10.8 and 3.6%) and eucalyptol (3.7 and 8.1%) were the main components. The benzene, hexane extracts and EOs were screened for their antibacterial and antifungal activity. The benzene extract possess the highest antibacterial activity against <i>Bacillus subtilis</i> (12.12 ± 0.20) and <i>Staphylococcus aureus</i> (10.04 ± 0.10).