Antioxidant Activity of the Bulb and Aerial Parts of Ornithogalum sintenisii L (Liliaceae) at Flowering Stage

Purpose: Ornithogalum sintenisii is an Iranian species with little known about its pharmacological effects. The purpose of the present study was to investigate some antioxidant properties of the plant.                    Methods: The antioxidant potency of the freeze-dried methanol extract of O. sintenisii bulbs and aerial parts were investigated by evaluating the following parameters: linoleic acid peroxidation, 1,1-diphenyl-2-picryl hydrazyl radical (DPPH), scavenging of nitric oxide and hydrogen peroxide as well as reducing power and Fe2+ chelating activity, using standard methods. Phenol and flavonoid contents were determined as gallic acid and quercetin equivalents, respectively. Results: The aerial parts contained higher phenol and flavonoid contents than the bulbs. IC50 for DPPH radical-scavenging activity was 368 ± 15 and 669 ± 25 μg ml-1 for aerial parts and bulbs, respectively. The reducing power of the extracts was less than that of vitamin C (p Conclusion: The bulb and aerial parts of O. sintenisii aerial parts (at flowering stage) exhibited good but varying levels of antioxidant activities in nearly all the models studied. Keywords: Ornithogalum sintenisii ; Bulbs; Aerial parts; Antioxidant activity; Flavoniods; Phenols

[1]  M. Ebrahimzadeh,et al.  Antioxidant activity of the methanol extract of Ferula assafoetida and its essential oil composition , 2009 .

[2]  M. Ebrahimzadeh,et al.  Correlation between the in vitro iron chelating activity and poly phenol and flavonoid contents of some medicinal plants. , 2009, Pakistan journal of biological sciences : PJBS.

[3]  M. Ebrahimzadeh,et al.  In vitro Antioxidant and Free Radical Scavenging Activity of Diospyros lotus and Pyrus boissieriana growing in Iran , 2009 .

[4]  M. Ebrahimzadeh,et al.  Antioxidant activity of Crataegus pentaegyna subsp. elburensis fruits extracts used in traditional medicine in Iran. , 2009, Pakistan journal of biological sciences : PJBS.

[5]  M. Ebrahimzadeh,et al.  Antioxidant activities of methanol extract of Sambucus ebulus L. flower. , 2009, Pakistan journal of biological sciences : PJBS.

[6]  Ebrahimzadeh FREE RADICAL SCAVENGING ABILITY OF METHANOLIC EXTRACT OF HYOSCYAMUS SQUARROSUS LEAVES , 2009 .

[7]  M. Ebrahimzadeh,et al.  IN VITRO ANTIOXIDANT ACTIVITY OF PHYTOLACCA AMERICANA BERRIES , 2009 .

[8]  M. Ebrahimzadeh,et al.  IRON CHELATING ACTIVITY, PHENOL AND FLAVONOID CONTENT OF SOME MEDICINAL PLANTS FROM IRAN , 2008 .

[9]  A. Delazar,et al.  GC-MS Analysis of the Dichloromethane Extract of the Bulbs of Ornithogalum cuspidatum Bert. (Family: Liliaceae) from Iran , 2008 .

[10]  M. Ebrahimzadeh,et al.  FREE RADICAL SCAVENGING ACTIVITY AND ANTIOXIDANT CAPACITY OF ERYNGIUM CAUCASICUM TRAUTV AND FRORIPIA SUBPINNATA , 2008 .

[11]  M. Ebrahimzadeh,et al.  DETERMINATION OF ANTIOXIDANT ACTIVITY, PHENOL AND FLAVONOID CONTENT OF PARROTIA PERSICA MEY , 2008 .

[12]  M. Ebrahimzadeh,et al.  Antioxidant Activities of Iranian Corn Silk , 2008 .

[13]  Bai Jin Isolation and Structure Identification of Novel Monoterpene Lactone from Ornithogalum Caudatum Ait , 2005 .

[14]  S. Karakaya,et al.  Radical scavenging and iron-chelating activities of some greens used as traditional dishes in Mediterranean diet , 2004, International journal of food sciences and nutrition.

[15]  N. Komissarenko Ornithogalin — A cardenolide glycoside from Ornithogalum magnum , 2004, Chemistry of Natural Compounds.

[16]  Y. Mimaki,et al.  Cholestane glycosides from the bulbs of Ornithogalum thyrsoides and their cytotoxic activity against HL-60 leukemia cells. , 2002, Journal of natural products.

[17]  Yuping Tang,et al.  Three new homoisoflavanone glycosides from the bulbs of Ornithogalum caudatum. , 2002, Journal of natural products.