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Chemical Composition and TLC-DPPH-Radical Scavenging Activity of Cyperus alternifolius Rottb. Essential Oils
Menoufia Univ, Fac Sci, Chem Dept, Shibin Al Kawm 32512, Egypt..
Natl Res Ctr, Med & Aromat Plants Res Dept, Cairo 12622, Egypt..
Natl Res Ctr, Nat Compound Chem Dept, El Tahrir St, Giza 12622, Egypt..
Natl Res Ctr, Nat Compound Chem Dept, El Tahrir St, Giza 12622, Egypt..
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2017 (English)In: Journal of Essential Oil-Bearing Plants (JEOBP), ISSN 0972-060X, E-ISSN 0976-5026, Vol. 20, no 4, p. 1125-1130Article in journal (Refereed) Published
Abstract [en]

The essential oils (EOs) of the tubers and aerial parts of Cyperus alternifolius Rottb. were separately extracted and analyzed by gas chromatography-mass spectroscopy (GC-MS). Seventeen and fifteen volatile compounds were identified from the tubers and aerial parts represented 99.16 % and 100 % of the total mass, respectively. Terpenes (97.82 % and 97.43 %) were the more characteristic content including sesquiterpenes (97.22 % and 3.89 %) and monoterpenes (0.6 % and 93.54 %), respectively. Caryophyllene (50.6 %), caryophyllene oxide (29.84 %), farnesyl acetone (4.65 %) represented the major components of the tubers EO. While D-limonene (63.78 %), theaspirane A (13.36 %), theaspirane B (10.97 %) and gamma-terpinene (3.4 %) were the majors of aerial parts EO. The aerial parts oil showed significant antioxidant activity at all concentrations in relation to rutin by TLC-DPPH radical scavenging activity method. The EO of the tubers exhibited moderate antioxidant activity at 5 mu g/ml and 10 mu g/ml with values 1.33 +/- 0.13 and 1.12 +/- 0.38, respectively. Significant antioxidant activity were exhibited by aerial parts EO at the three concentrations 2.5 mu g/ml, 5 mu g/ml and 10 mu g/ml with activity values 5.83 +/- 0.61, 7.18 +/- 0.81 and 8.48 +/- 1.30, respectively.

Place, publisher, year, edition, pages
Taylor & Francis, 2017. Vol. 20, no 4, p. 1125-1130
Keywords [en]
Cyperus alternifolius, GC-MS, essential oil, terpenes, TLC-DPPH radical scavenging activity
National Category
Botany Pharmacology and Toxicology
Identifiers
URN: urn:nbn:se:uu:diva-342108DOI: 10.1080/0972060X.2017.1354723ISI: 000423061000023OAI: oai:DiVA.org:uu-342108DiVA, id: diva2:1183807
Available from: 2018-02-19 Created: 2018-02-19 Last updated: 2018-02-19Bibliographically approved

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El-Seedi, Hesham

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