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Essential-oil composition and antimicrobial activity of wild and cultivated Moroccan Achillea ageratum L.: a rare and threatened medicinal species

Abstract : The essential oils of leaves and flowers of the wild and cultivated Moroccan Achillea ageratum L., a rare and threatened medicinal species, were examined by GC/MS, and their chemical compositions were compared. At least nine components were identified in both wild and cultivated A. ageratum oils, representing more than 95% of the oils. Artemisyl acetate (62.3478.79%), yomogi alcohol (4.8912.40%), santolina alcohol (4.8611.77%), and artemisia alcohol (3.367.04%) were the major compounds. Terpene-alcohol proportion was higher in wild A. ageratum than in cultivated A. ageratum. The antibacterial analysis showed that both oils presented high activity against all the studied Gram-positive strains in a range of MIC values from 2.55 to 7.02 mg/ml, but they appeared not effective against the tested Gram-negative ones (MIC values 20.4041.10 mg/ml). They also exhibited remarkable antifungal activities against Candida species with MIC values ranging from 5.83 to 8.42 mg/ml. From these results, it was concluded that domestication of this threatened medicinal species using clonal propagation did not significantly affect its chemical composition and consequently its antimicrobial properties.
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Submitted on : Monday, April 6, 2020 - 9:38:09 AM
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L. El Bouzidi, A. Abbad, L. Hassanib, K. Fattarsi, D. Leach, et al.. Essential-oil composition and antimicrobial activity of wild and cultivated Moroccan Achillea ageratum L.: a rare and threatened medicinal species. Chemistry and Biodiversity, Wiley, 2012, 9 (3), pp.598-604. ⟨10.1002/cbdv.201100115⟩. ⟨hal-02532820⟩

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