Abstract
The aim of the present study is to investigate the chemical composition, antibacterial and antioxidant activities of three essential oils extracted by hydrodistillation from the aerial parts ofArtemisia arborescens L., which was collected from three different regions near Tlemcen city in the West Northern of Algeria: Beni Snous, Bidar and Chetouane. The chemical composition was investigated using both capillary gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS) techniques. Fifty-two compounds were detected, a total of fifty compounds, representing 81.8 to 90.2% of the total oils were identified in the three samples of essential oils. The essential oils of A. arborescens were rich in camphor (Beni Snous: 72.2%, Bidar: 50.3% and Chetouane: 32.8%). The present composition of the essential oils, with camphor as the only most abundant component, was considered as a new chemotype of A. arborescens growing in West Northern of Algeria. Antibacterial activity of the essential oils against gram-positive and gram-negative bacteria, was tested using the diffusion method and by determining the inhibition zone. The results showed that the oils had a great potential antibacterial activity against some bacteria. The maximum zone of inhibition was obtained against Enterococcus faecalis (22 mm). In contrast, the oils were ineffective on the inactivation of Lysteria monocytogenes and Escherichia coli. Antioxidant capacity was assessed by in vitro tests using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and significant activity was found for these A. arborescens oils. Key words: Artemisia arborescens L., Asteraceae, essential oil, chemical composition, chemotype, camphor, antibacterial activity, antioxidant activity.
Highlights
The genus Artemisia (Family Asteraceae, tribe Anthemideae) belongs to a useful group of aromatic and medical plants comprising a variable number of species
The aim of the present study is to investigate the chemical composition, antibacterial and antioxidant activities of three essential oils extracted by hydrodistillation from the aerial parts of Artemisia arborescens L., which was collected from three different regions near Tlemcen city in the West Northern of Algeria: Beni Snous, Bidar and Chetouane
The essential oils were obtained by hydrodistillation using a Clevenger apparatus, from the aerial parts of A. arborescens, collected from different geographical origins near Tlemcen, a city in the West Northern of Algeria
Summary
The genus Artemisia (Family Asteraceae, tribe Anthemideae) belongs to a useful group of aromatic and medical plants comprising a variable number of species (from 200 to over 400, depending on the authors). Artemisia species are distinguished by the presence of essential oils, polyacetylenes as well as lignans, sesquiterpene lactones and flavonoids (Radoslaw et al, 2007). Various species of Artemisia have been characterized for their biological activities. They are considered to produce most medicinally important secondary metabolites. Several studies using Artemisia spp. showed a series of antimicrobial and antioxidant activities (Ahameethunisa and Hopper, 2010; Baykan et al, 2012)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
