Title

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

Document Type

Article

Publication details

El Bouzidi, L, Abbad, A, Hassani, L, Fattarsi, K, Leach, DN, Markouk, M, Legendre, L & Bekkouche, K 2012, 'Essential oil composition and antimicrobial activity of wild and cultivated Moroccan Achillea ageratum L.: a rare and threatened medicinal species', Chemistry & Biodiversity, vol. 9, no. 3, pp. 598-605.

Published version available from:

http://dx.doi.org/10.1002/cbdv.201100115

Peer Reviewed

Peer-Reviewed

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 (62.34–78.79%), yomogi alcohol (4.89–12.40%), santolina alcohol (4.86–11.77%), and artemisia alcohol (3.36–7.04%) 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 20.40–41.10 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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