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Int. J. Mol. Sci. 2012, 13(12), 16580-16591; doi:10.3390/ijms131216580

Chemical Composition and Biological Activities of the Essential Oils from Three Melaleuca Species Grown in Tunisia

1
Laboratory for Forest Ecology, National Institute for Research in Rural Engineering, Water and Forests, BP 10, 2080 Ariana, Tunisie
2
Department of Pharmaceutical and Biomedical Sciences, University of Salerno, Via Ponte Don Melillo, 84084 Fisciano (Salerno), Italy
3
Plant Molecular Physiology Laboratory, Center of Biotechnology of Borj-Cèdria, BP 901, 2050 Hammam-Lif, Tunisie
4
Chemistry Laboratory, Higher Institute of Education and Continuous Training, 43 Rue de la Liberté, 2019 Le Bardo, Tunisie
5
Department of Industrial Engineering, University of Salerno, via Ponte Don Melillo, 84084 Fisciano (Salerno), Italy
*
Author to whom correspondence should be addressed.
Received: 25 September 2012 / Revised: 25 October 2012 / Accepted: 29 November 2012 / Published: 5 December 2012
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Abstract

The chemical composition of the essential oils of Melaleuca armillaris Sm., Melaleuca styphelioides Sm. and Melaleuca acuminata F. Muell., collected in Tunisia, was studied by means of GC and GC-MS analysis. In all, 46 compounds were identified, 38 for M. armillaris, 20 for M. acuminata and eight for M. styphelioides, respectively. The presence of a sesquiterpenic fraction (52.2%) characterized the oil from M. armillaris; M. sthypheliodes oil was rich in methyl eugenol, a phenolic compound (91.1%), while M. acuminata oil is mainly constituted by oxygenated monoterpenoids (95.6%). The essential oils were evaluated for their in vitro potentially phytotoxic activity against germination and initial radicle growth of Raphanus sativus L., Lepidium sativum L., Sinapis arvensis L., Triticum durum L. and Phalaris canariensis L. seeds. The radicle elongation of five seeds was inhibited at the highest doses tested, while germination of all seeds was not affected. Moreover, the essential oils showed low antimicrobial activity against eight selected microorganisms.
Keywords: Melaleuca acuminata; Melaleuca armillaris; Melaleuca styphelioides; phytotoxic activity; antimicrobial activity Melaleuca acuminata; Melaleuca armillaris; Melaleuca styphelioides; phytotoxic activity; antimicrobial activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Amri, I.; Mancini, E.; De Martino, L.; Marandino, A.; Lamia, H.; Mohsen, H.; Bassem, J.; Scognamiglio, M.; Reverchon, E.; De Feo, V. Chemical Composition and Biological Activities of the Essential Oils from Three Melaleuca Species Grown in Tunisia. Int. J. Mol. Sci. 2012, 13, 16580-16591.

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Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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