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Medicines 2017, 4(2), 29; doi:10.3390/medicines4020029

Characterization and Antioxidant Activity of Volatile Constituents from Different Parts of Aframomum danielli (Hook) K. Schum

1
Department of Chemistry, University of Uyo, Uyo 520101, Nigeria
2
Hussain Ebrahim Jamal Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
3
Department of Pharmacognosy and Natural Medicine, Faculty of Pharmacy, University of Uyo, Uyo 520101, Nigeria
4
Department of Medical Biochemistry, University of Benin, Benin 300283, Nigeria
*
Author to whom correspondence should be addressed.
Academic Editor: Eleni Skaltsa
Received: 30 March 2017 / Revised: 2 May 2017 / Accepted: 5 May 2017 / Published: 10 May 2017
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Abstract

Background: Aframomum danielli is used in ethno-medicine for the treatment of several ailments and as a traditional food spice. Methods: The hydro-distilled leaf, stem, seed, rhizome and pod volatile oils of A. danielli 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: Thirty-nine (39) volatile compounds were identified in the oils of A. danielli, accounting for 85.33 to 96.03% of the total oil composition. The leaf, stem, rhizome and pod volatile oils were dominant in β-pinene (30.94–47.55%), while the seed oil contained a high amount of 1,8-cineole (eucalyptol) (53.44%). The seed oil showed higher radical inhibitory activity in the DPPH assay (IC50 value, 45.5 µg/mL) and the rhizome oil was the most effective in the FRAP assay. Conclusions: The characterization of the leaf, stem, rhizome and pod volatile oils of A. danielli is reported for the first time. A. danielli seed and rhizome oils elicit promise as potential plant resource and warrant further biological exploitation. View Full-Text
Keywords: zingiberaceae; Aframomum daniell; essential oils; antioxidant activity; 1,8-cineole; β-pinene zingiberaceae; Aframomum daniell; essential oils; antioxidant activity; 1,8-cineole; β-pinene
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MDPI and ACS Style

Essien, E.E.; Thomas, P.S.; Oriakhi, K.; Choudhary, M.I. Characterization and Antioxidant Activity of Volatile Constituents from Different Parts of Aframomum danielli (Hook) K. Schum. Medicines 2017, 4, 29.

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