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Chemical Composition and Anti-Insecticidal Activity of the Essential Oils of Thymus of Morocco: Thymus capitates, Thymus Bleicherianus and Thymus Satureioides

Author

Listed:
  • Ayoub Ainane
  • Fatima Khammour
  • Sanaa Charaf
  • Meriem Elabboubi
  • Laila Bennani
  • M’hamed El Kouali
  • Mohammed Talbi

    (Laboratory of Analytical Chemistry and Physical Chemistry of Materials, Faculty of Sciences Ben Msik, University of Hassan II, Morocco)

  • Sanaa Cherroud
  • El Hassan Abba
  • Tarik Ainane

    (Superior School of Technology - Khenifra (EST-Khenifra), University of Moulay Ismail, Morocco)

Abstract

Aromatic plants have an increasing advantage thanks to the valorization of their essential oils in various applications, such as antimicrobial, antifungal, antibacterial, antitoxic, insecticidal and insect repellent, etc. This work reports the valorization, as a bio insecticide, of the essential oils of three Moroccan species of thyme that belongs to the family of Lamiaceae: Thymus bleicherianus (TB), Thymus capitatus (TC) and Thymus saturioides (TS) extracted by hydro distillation and analyzed by gas chromatography-mass spectrometry (GC-MS). Thymol, β-Ocymene, Camphor and o-Cymene were obtained as majority compounds, with a percentage of 79.57% in the essential oil of Thymus bleicherianus (TB). The essential oil of Thymus capitatus (TC) is characterized by the presence of carvacrol and α-Terpinene as main chemical constituents with a percentage of 76.51%, and as well as the main essential oil compounds of Thymus satureioides (TS) are: Thymol, α-Terpinene, E-β-Ocymene, Camphor, and Borneol with a percentage of 74.79%.The chemical composition varies quantitatively and qualitatively according to the species studied, the yields obtained respectively from Thymus bleicherianus (TB), Thymus capitatus (TC) and Thymus satureioides (TS) are: 1.71%; 1.43% and 0.69%. Susceptibility tests carried out under laboratory conditions against the wheat pest sitophilus oryzae, this bio activity is mainly due to the richness of these species in carvacrol and thymol which are known for their effectiveness against pests.

Suggested Citation

  • Ayoub Ainane & Fatima Khammour & Sanaa Charaf & Meriem Elabboubi & Laila Bennani & M’hamed El Kouali & Mohammed Talbi & Sanaa Cherroud & El Hassan Abba & Tarik Ainane, 2018. "Chemical Composition and Anti-Insecticidal Activity of the Essential Oils of Thymus of Morocco: Thymus capitates, Thymus Bleicherianus and Thymus Satureioides," Organic & Medicinal Chemistry International Journal, Juniper Publishers Inc., vol. 6(3), pages 54-59, April.
    • Handle: RePEc:adp:jomcij:v:6:y:2018:i:3:p:54-59
    DOI: 10.19080/OMCIJ.2018.06.555687
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