Eryngium foetidum L. Essential Oils: Chemical Composition and Antioxidant CapacityReportar como inadecuado


Eryngium foetidum L. Essential Oils: Chemical Composition and Antioxidant Capacity


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1

Department of Pharmacognosy and Natural Medicine, University of Uyo, Uyo 520101, Nigeria

2

Department of Chemistry, University of Uyo, Uyo 520101, Nigeria

3

Hussain Ebrahim Jamal Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan





*

Author to whom correspondence should be addressed.



Academic Editor: Eleni Skaltsa

Abstract Background: Eryngium foetidum essential oils from Nigeria were investigated for the first time in order to ascertain their potency as natural antioxidants. E. foetidum is an aromatic and medicinal herb used in ethno-medicine and as a traditional spice for foods. Methods: The hydro-distilled oils of E. foetidum were subjected to gas chromatography-mass spectrometry GC-MS analysis. Free radical scavenging capacity of the volatile oils was determined using 2, 2-diphenyl-1-picrylhydrazyl DPPH and ferric reducing antioxidant power FRAP assays. Results: Leaf volatile oil contained a high proportion of E-2-Dodecenal 28.43%, 13-tetradecenal 27.45%, dodecanal 14.59% and 2,4,5-trimethylbenzaldehyde 10.77%; the stem oil comprised of dodecanal 20.21%, 2,4,5-trimethylbenzaldehyde 18.43% and E-2-dodecenal 8.27%, while 2,4,5-trimethylbenzaldehyde 56.08%, 13-tetradecenal 9.26% and E-2-dodecenal 7.65% were the most dominant in the root oil. The IC50 values for the leaf, stem and root oils were 56 µg-mL, 46µg-mL and 54.5 µg-mL respectively in the DPPH assay while the leaf oil exhibited the highest reducing potential among the test oils in the FRAP assay. Conclusions: The Nigerian E. foetidum volatile oils contain high amount of acyclic aldehydes and aromatic compounds. The oils are a potential source of natural antioxidant as demonstrated by their strong antioxidant activity. View Full-Text

Keywords: Apiaceae; Ergnium foetidum; essential oils; antioxidant activity Apiaceae; Ergnium foetidum; essential oils; antioxidant activity





Autor: Paul S. Thomas 1,* , Emmanuel E. Essien 2,3, Samuel J. Ntuk 2 and Mohammad I. Choudhary 3

Fuente: http://mdpi.com/



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