title: Screening for antioxidant properties of Allium giganteum.
abstract: The antioxidative properties of bulb, leaf and stalk of Allium giganteum were investigated. Activities of antioxidant enzymes (superoxide dismutase, catalase, peroxidase, glutathione peroxidase), quantities of malonyldialdehyde, superoxide and hydroxyl radicals and reduced glutathione and also the content of total flavonoids, chlorophylls a and b, carotenoids, vitamin C and soluble proteins were determined. The highest antioxidant activity was observed in the leaves. Furthermore, ESR signal of PBN-OH radical adducts in the presence of leaves phosphate buffer (pH 7) extract was reduced for 74.19%.
authors.affiliation: Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000 Novi Sad, Serbia and Montenegro. stajnerd@polj.ns.ac.yu
authors.forename: D
authors.initials: D
authors.lastname: Stajner
authors.forename: N
authors.initials: N
authors.lastname: Milić-Demarino
authors.forename: J
authors.initials: J
authors.lastname: Canadanović-Brunet
authors.forename: M
authors.initials: M
authors.lastname: Stajner
authors.forename: B M
authors.initials: BM
authors.lastname: Popović
mesh_terms: D000490:Allium; D000975:Antioxidants / Q000737:chemistry*; D006801:Humans; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves; D018517:Plant Roots; D018547:Plant Stems
chemical_list: D000975:Antioxidants; D010936:Plant Extracts