Antioxidant Activity of Methanol Extracts Obtained from Plantago Species

Antioxidative activities of methanol extracts from five Plantago species (P. afra, P. coronopus, P. lagopus, P. lanceolata, and P. serraria) were characterized by the DPPH scavenging test and the inhibition of Fe2+/ascorbate-induced lipid peroxidation on bovine brain liposomes. All extracts showed a...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2005-03, Vol.53 (6), p.1927-1933
Main Authors: Gálvez, Marina, Martín-Cordero, Carmen, Houghton, Peter J, Ayuso, María Jesús
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
antioxidant activity
antioxidants
Antioxidants - analysis
Antioxidants - pharmacology
Biological and medical sciences
Biphenyl Compounds
Chemical constitution
Colorimetry
Economic plant physiology
flavonoids
Flavonoids - analysis
food preservatives
Free Radical Scavengers
free radicals
Fundamental and applied biological sciences. Psychology
Glycosides - analysis
Iridoids - analysis
lipid peroxidation
Methanol
natural additives
phenolic compounds
Phenols - analysis
phenylpropanoids
Picrates
plant extracts
Plant Extracts - chemistry
Plantago
Plantago - chemistry
Plantago afra
Plantago coronopus
Plantago lagopus
Plantago lanceolata
Plantago serraria
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Summary:Antioxidative activities of methanol extracts from five Plantago species (P. afra, P. coronopus, P. lagopus, P. lanceolata, and P. serraria) were characterized by the DPPH scavenging test and the inhibition of Fe2+/ascorbate-induced lipid peroxidation on bovine brain liposomes. All extracts showed antioxidant activity in both methods. Whereas P. serraria exhibited the strongest activity as a DPPH scavenger, P. lanceolata and P. serraria were found to be the most active in the lipid peroxidation inhibition assay. The extracts were investigated regarding their composition by different colorimetric techniques, such as the content of total phenolic compounds by the Folin−Ciocalteu assay, flavonoids by AlCl3 reagent, phenylpropanoid glycosides (PPGs) by Arnow reagent, and iridoids by Trim−Hill assay. A high correlation was found between the scavenging potency and the total phenolic and phenylpropanoid content of the extracts but not between the lipid peroxidation potency and the extract composition. P. serraria is presented as a possible new source of natural antioxidants. Keywords: Plantago; antioxidant activity; DPPH; lipid peroxidation; phenolic compounds; phenylpropanoid glycosides; flavonoids
ISSN:0021-8561
1520-5118
DOI:10.1021/jf048076s