Correlation between Chemical Composition and Antibacterial Activity of Essential Oils from Fifteen Eucalyptus Species Grown in the Korbous and Jbel Abderrahman Arboreta, North East Tunisia

Authors

  • Ameur Elaissi Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, Monastir 5019, Tunisia.
  • Zyed Rouis Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, University of Monastir, Rue Avicenne, Monastir 5000, Tunisia.
  • Samia Mabrouk Laboratory of Genetic, Biodiversity and Bio-resources Valorisation, Higher Institute of Biotechnology of Monastir, University of Monastir, Avenue Tahar Haddad, Monastir 5000, Tunisia.
  • Karima Bel Haj Salah Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, University of Monastir, Rue Avicenne, Monastir 5000, Tunisia.
  • Mahjoub Aouni Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy, University of Monastir, Rue Avicenne, Monastir 5000, Tunisia.
  • Mohamed Larbi Khouja National Institute for Research on Rural Engineering, Water and Forestry, Institution of Agricultural Research and Higher Education, BP. N.2, Ariana 2080, Tunisia.
  • Farhat Farhat Laboratory of Analytical Chemistry, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, Monastir 5019, Tunisia.
  • Rachid Chemli Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Monastir, Avenue Avicenne, Monastir 5019, Tunisia.
  • Fethia Harzallah-Skhiri Laboratory of Genetic, Biodiversity and Bio-resources Valorisation, Higher Institute of Biotechnology of Monastir, University of Monastir, Avenue Tahar Haddad, Monastir 5000, Tunisia.

DOI:

https://doi.org/10.9734/bpi/tipr/v5/7199D

Keywords:

Antibacterial activity, Eucalyptus leaf essential oil composition, principal components analysis (PCA), hierarchical cluster analysis (HCA)

Abstract

The essential oils of fifteen Eucalyptus species harvested from the Jbel Abderrahman and Korbous arboreta (North East Tunisia) were screened for their antibacterial activities by the agar disc diffusion method. The activity of the Eucalyptus essential oils varied significantly within species and within strains. Eighteen major components as identified by GC/FID and GC/MS were selected for a study of the chemical and biological activity variability. The main one was 1,8-cineole, followed by spathulenol, trans-pinocarveol, ?-pinene, p-cymene, globulol, cryptone, ?-phellandrene, viridiflorol, borneol, limonene and isospathulenol. The chemical principal component analysis identified five species groups and subgroups, where each group constituted a chemotype, however that of the values of zone diameter of the inhibition (zdi) identified six groups of Eucalyptus oils, characterized by their antibacterial inhibition ability. The strongest activity was shown by E. platypus oil against Enterococcus faecalis and by E. lamannii oil against Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli. A correlation between the levels of some major components and the antibacterial activities was observed.

Published

2021-05-19

How to Cite

Ameur Elaissi, Zyed Rouis, Samia Mabrouk, Karima Bel Haj Salah, Mahjoub Aouni, Mohamed Larbi Khouja, … Fethia Harzallah-Skhiri. (2021). Correlation between Chemical Composition and Antibacterial Activity of Essential Oils from Fifteen Eucalyptus Species Grown in the Korbous and Jbel Abderrahman Arboreta, North East Tunisia. Technological Innovation in Pharmaceutical Research Vol. 5, 69–81. https://doi.org/10.9734/bpi/tipr/v5/7199D

Issue

Technological Innovation in Pharmaceutical Research Vol. 5

Section

Chapters