Antioxidant capacity of Melampyrum barbatum - weed and medicinal plant

• Published in: Phytotherapy research Vol. 23; no. 7; pp. 1006 - 1010
• Main Authors: Štajner, D, Popović, B.M, Boža, P, Kapor, A
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.07.2009; Wiley
• Subjects: antioxidants; Antioxidants - chemistry; Antioxidants - isolation & purification; Biological and medical sciences; Catalase - metabolism; DPPH; Flavonoids - metabolism; Flowers - chemistry; FRAP; Free Radicals - metabolism; General pharmacology; Glutathione - metabolism; Glutathione Peroxidase - metabolism; lipid peroxidation; Lipofuscin - metabolism; Malondialdehyde - metabolism; Medical sciences; Melampyrum barbatum; Orobanchaceae - chemistry; Peroxidase - metabolism; Pharmacognosy. Homeopathy. Health food; Pharmacology. Drug treatments; Plant Leaves - chemistry; Plants, Medicinal - chemistry; Superoxide Dismutase - metabolism; Weed; DPPH; Pharmacognosy; antioxidants; Melampyrum barbatum; Lipids; Antioxidant; lipid peroxidation; Medicinal plant; Melampyrum; Dicotyledones; Angiospermae; Plant origin; Scrophulariaceae; Spermatophyta; FRAP; Parasitic plant; Peroxidation
• ISSN: 0951-418X; 1099-1573
• DOI: 10.1002/ptr.2741

This study was designed to examine antioxidant and free radical scavenging activities of red and yellow forms of Melampyrum barbatum L. In this study, we report the results concerning flower and leaf antioxidant enzyme activities (superoxide dismutase, catalase, guaiacol peroxidase and glutathione peroxidase), reduced glutathione quantity, flavonoids, photosynthetic pigments and soluble protein contents and quantities of malonyldialdehyde, OH and O₂ ⁻ radicals; total antioxidant capacity was determined by FRAP (Ferric Reducing Antioxidant Power) method and scavenger activity by DPPH (1,1-diphenyl-2-pycril-hydrasil radical) method. Lipofuscin 'plant age pigments' were also determined. According to our results, flowers of the red form of M. barbatum exhibited the highest antioxidant capacity. Copyright © 2009 John Wiley & Sons, Ltd.