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Chemical Composition and Antimicrobial Activity of Essential Oil of Wild and Cultivated Rosmarinus officinalis from Two Moroccan Localities
Majda Elyemni 1  
,   Faiçal El Ouadrhiri 2  
,   Amal Lahkimi 2  
,   Taha Elkamli 3  
,   Abdelhak Bouia 1  
,   Noureddine Eloutassi 2  
 
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1
Laboratory of Biotechnology, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdelah University, Fez, Morocco
2
Laboratory of Engineering, Electrochemistry, Modeling and Environment, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdelah University, Fez, Morocco
3
Doping Control Laboratory, Institute of Agronomy and Veterinary Hassan II, Rabat, Morocco
CORRESPONDING AUTHOR
Majda Elyemni   

Laboratory of Biotechnology, Faculty of Sciences Dhar El Mahraz, Sidi Mohammed Ben Abdelah University, Fez, Morocco
 
 
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ABSTRACT
This research aimed to measure the impact of provenance on the yield, chemical profile and antimicrobial activity of Rosmarinus officinalis essential oil (EO) collected from cultivated and wild plants from two different regions in Morocco (Fez and Figuig). The chemical composition analysis was accomplished utilizing the GC-MS techniques. Sixteen compounds were identified in the EO of both samples, dominated by 1,8-cineole (32.18%), camphor (16.20%) and α-pinene (15.40%) in cultivated type. The α-pinene (51.19) presents the majority compound in the rosemary samples collected from the wild populations.The antimicrobial activity was investigated by using the broth dilution methods against yeast, four bacterial strains and two molds. Rosemary aerial part provided EO with the highest yield and comes from Figuig. The GC-MS analysis demonstrated the existence of two chemotypes of oils: α-pinene as well as 1,8-cineole/camphor/α-pinene. Both EOs showed good antimicrobial activity against all microbial strains. The essential oil produced by Fez plants was the most effective against the selected microorganisms having MIC values of 0.315-2.5 mg/L.