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Effect of bioclimatic area on the composition and bioactivity of Tunisian Rosmarinus officinalis essential oils

Effect of bioclimatic area on the composition and bioactivity of Tunisian Rosmarinus officinalis essential oils

Natural Product Research 29(3): 213-222

The chemical composition of eight Tunisian Rosmarinus officinalis L. populations (A-H) from different bioclimatic areas has been examined by gas chromatography (GC) and GC-mass spectrometry. The essential oils are characterised by high amounts of oxygenated monoterpenes (58.2-71.7%) followed by monoterpene hydrocabons (15.1-26.7%). 1,8-Cineole, camphor, α-pinene and borneol are the main representative components. The antioxidant activity was investigated by 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), ferric reducing ability power assay and β-carotene bleaching test. Samples showed antiradical activity by inhibiting DPPH radical with IC50 values ranging from 375.3 to 592.8 μg mL(- 1) for samples F and A, respectively. Sample A also showed the most promising activity in β-carotene bleaching test (IC50 of 31.9 μg mL(- 1)). The essential oils were also screened for acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity. Sample G showed the highest activity against AChE (IC50 of 64.7 μg mL(- 1)) while sample D (IC50 of 29.5 μg mL(- 1)) exhibited the most potent activity against BChE.

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Accession: 052796431

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PMID: 25104041

DOI: 10.1080/14786419.2014.942305

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