GC/MS Analysis and Antibacterial Activity of the Essential Oil of Moroccan Tetraclinis articulata (Vahl) Masters


  • Halima Rabib
  • Sophia Zougagh
  • Mohamed Hsain
  • Wadi Badri
  • Tayeb Koussa




The quality and the variability of the chemical composition and antimicrobial properties of essentials oils isolated from Tetraclinis articulata (Vahl) leaves, which were studied from two different regions that are ecologically various. The average yield of essential oil is 0,56 % for the Ras Elma Tazekka region (mountain) and 0,36% for the Debdou region (plain). An analysis made by GC and GC/ MS identified 22 components in Tetraclinis articulata leaves essential oil in the mountain area and 29 components in the plain area. These major components represent the variability of quantity. The percentages following respectively by the two areas are: Bornyl acetate (34,84%; 32,55%), α-Pinene (11,41%; 18,83%), Camphor (11,24 %; 11,31%), Limonene (11,94 %; 8%) and Borneol (8,35%; 7,79%). The antimicrobial activity of T. articulata essential oil was tested against clinical isolates of Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli which has been inhibited from the 50μg / mL concentration for the Debdou region (Plain) and 25μg / mL for that of the Ras Elma Tazekka region (Mountain).


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Biological Chemistry