Evaluation of phytochemical and in vitro antioxidant activity of water and acetone extracts of selected vegetables.

The aim of this study was to determine antioxidant activity of Brassica oleracea (Cabbage), Brassica rapa (Turnip) and Raphanus sativus (Radish). All of the three selected vegetables were ultrasonically extracted in water and acetone. The antioxidant activity was determined by DPPH and H2O2. Highest phenolic, flavonoid and flavonol contents were found among water extract of Raphanus sativus, Brassica oleracea and Brassica rapa respectively. Highest %age of DPPH inhibition was exhibited by water extract of Brassica rapa and highest OH◦ radical scavenging activity was shown by water extract of Raphanus sativus.

[1]  A. Lamb,et al.  Recent advances in understanding the antibacterial properties of flavonoids. , 2011, International journal of antimicrobial agents.

[2]  Z. Saddiqe,et al.  A review on biological, nutraceutical and clinical aspects of French maritime pine bark extract. , 2011, Journal of ethnopharmacology.

[3]  Li Wang,et al.  Antioxidant and pro-oxidant properties of acylated pelargonidin derivatives extracted from red radish (Raphanus sativus var. niger, Brassicaceae). , 2010, Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association.

[4]  L. Mangamoori,et al.  Hexane Extract of Raphanus sativus L. Roots Inhibits Cell Proliferation and Induces Apoptosis in Human Cancer Cells by Modulating Genes Related to Apoptotic Pathway , 2010, Plant foods for human nutrition.

[5]  M. R. Shah,et al.  Antibacterial, antifungal, insecticidal, cytotoxicity and phytotoxicity studies on Indigofera gerardiana , 2009 .

[6]  L. Zanatta,et al.  Flavonoids: prospective drug candidates. , 2008, Mini reviews in medicinal chemistry.

[7]  J. Spencer.  Flavonoids: modulators of brain function? , 2008, British Journal of Nutrition.

[8]  S. Greff,et al.  Characterization of phenolic compounds in Pinus laricio needles and their responses to prescribed burnings. , 2007, Molecules.

[9]  M. Friedman.  Overview of antibacterial, antitoxin, antiviral, and antifungal activities of tea flavonoids and teas , 2006, Molecular nutrition & food research.

[10]  Jin-Yuarn Lin,et al.  DETERMINATION OF TOTAL PHENOLIC AND FLAVONOID CONTENTS IN SELECTED FRUITS AND VEGETABLES, AS WELL AS THEIR STIMULATORY EFFECTS ON MOUSE SPLENOCYTE PROLIFERATION , 2007 .

[11]  A. Podsędek.  Natural antioxidants and antioxidant capacity of Brassica vegetables : A review , 2007 .

[12]  A. Kumaran,et al.  Antioxidant and free radical scavenging activity of an aqueous extract of Coleus aromaticus , 2006 .

[13]  Y. Choi,et al.  Identification of phenylpropanoids in methyl jasmonate treated Brassica rapa leaves using two-dimensional nuclear magnetic resonance spectroscopy. , 2006, Journal of chromatography. A.

[14]  R. Liu,et al.  Potential synergy of phytochemicals in cancer prevention: mechanism of action. , 2004, The Journal of nutrition.

[15]  R. Gutiérrez,et al.  Raphanus sativus (Radish): Their Chemistry and Biology , 2004, TheScientificWorldJournal.

[16]  Yu Wenli,et al.  The radical scavenging activities of radix puerariae isoflavonoids: A chemiluminescence study , 2004 .

[17]  Y. Kiso,et al.  Aging of whiskey increases 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity. , 2004, Journal of agricultural and food chemistry.

[18]  C. Fernández,et al.  Biochemical Responses of Pinus pinaster Trees to Fire-Induced Trunk Girdling and Crown Scorch: Secondary Metabolites and Pigments as Needle Chemical Indicators , 2002, Journal of Chemical Ecology.

[19]  D. Barrett,et al.  Comparison of the total phenolic and ascorbic acid content of freeze-dried and air-dried marionberry, strawberry, and corn grown using conventional, organic, and sustainable agricultural practices. , 2003, Journal of agricultural and food chemistry.

[20]  L. Yu,et al.  Free radical scavenging properties of wheat extracts. , 2002, Journal of agricultural and food chemistry.

[21]  M. Müller,et al.  Effects of flavonols on the generation of superoxide anion radicals by xanthine oxidase and stimulated neutrophils. , 2001, Archives of biochemistry and biophysics.

[22]  G. Ciccia,et al.  Insecticidal activity against Aedes aegypti larvae of some medicinal South American plants. , 2000, Journal of ethnopharmacology.

[23]  Vladimir N. Bashkin,et al.  Practical Environmental Analysis , 1999 .

[24]  J. Dwyer,et al.  Taxonomic classification helps identify flavonoid-containing foods on a semiquantitative food frequency questionnaire. , 1998, Journal of the American Dietetic Association.

[25]  R. Prior,et al.  Antioxidant Capacity of Tea and Common Vegetables , 1996 .

[26]  J. Harborne,et al.  Nature, distribution and function of plant flavonoids. , 1986, Progress in clinical and biological research.