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Molecules 2012, 17(5), 5030-5039; doi:10.3390/molecules17055030

Chemical Composition, Antimicrobial and Antitumor Activities of the Essential Oils and Crude Extracts of Euphorbia macrorrhiza

1
Key Laboratory of Chemistry of Plant Resources in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
2
Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Received: 21 March 2012 / Revised: 17 April 2012 / Accepted: 20 April 2012 / Published: 3 May 2012
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Abstract

The present study aimed to examine the chemical composition and biological activity of essential oils extracted from Euphorbia macrorrhiza collected from Northwest China. The major constituents of the essential oils of aerial parts and roots of E. macrorrhiza are acorenone B (16.72% and 25.80%), (+)-cycloisosativene (14.94% and 12.40%), 3a-hydroxy-5b-androstane (10.62% and 5.52%), copaene (7.37% and 6.29%), l-calamenene (4.13% and 4.65%) and β-cedrene (8.40% and 7.98%), respectively. The minor components of them are thymene, γ-terpinene, thymecamphor, α-cedrene, zingiberene, trans-caryophyllene, β-chamigrene, curcumene, pentadecane, (−)-α-muurolene, cuparene, γ-cadinene, (Z)-3-heptadecene, 1,3,7,7-tetramethyl-2-oxabicyclo(4.4.0)dec-5-en-4-one, hexahydrofarnesyl acetone, γ-elixene and palmitinic acid. The antimicrobial and antitumor activitiy of the E. macrorrhiza essential oil against Staphyloccocus aureus, Escherichia coli, Canidia Albicans and Caco-2 cells were evaluated. Among all the tested microorganisms and Caco-2 cells, the essential oils showed the strongest inhibitory effect on Staphyloccocus aureus (MIC = 2.8 μg/mL) and Caco-2 cell (IC50 = 11.86 μg/mL), whereas no effect on Escherichia coli and Candida albicans. The data of this study suggested that the E. macrorrhiza essential oils have great potential as a natural medicine for microbial infections and cancers.
Keywords: Euphorbia macrorrhiza; essential oil composition; antimicrobial activity; antitumor activity Euphorbia macrorrhiza; essential oil composition; antimicrobial activity; antitumor activity
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MDPI and ACS Style

Lin, J.; Dou, J.; Xu, J.; Aisa, H.A. Chemical Composition, Antimicrobial and Antitumor Activities of the Essential Oils and Crude Extracts of Euphorbia macrorrhiza. Molecules 2012, 17, 5030-5039.

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