Evaluation of the antioxidant activity of environmental plants: activity of the leaf extracts from seashore plants.
The antioxidant activity of the methanolic extracts of the leaves of 39 plant species was examined. These leaves were collected from the plants growing on subtropical seashores. The activity was evaluated by three kinds of assay methods, which included the DPPH radical scavenging assay, linoleic acid oxidation assay, and oxidative cell death assay. Two extracts from Excoecaria agallocha and Terminalia catappa showed remarkably potent activity in all assay systems. The HPLC analysis of the extracts indicated the presence of the same antioxidant and isolation work for the compound identified ellagic acid. The isolated ellagic acid showed strong antioxidant activity in the assay systems used.
Masuda
T
T
Faculty of Integrated Arts and Sciences, University of Tokushima, Japan. masuda@ias.tokushima-u.ac.jp
Yonemori
S
S
Oyama
Y
Y
Takeda
Y
Y
Tanaka
T
T
Andoh
T
T
Shinohara
A
A
Nakata
M
M
D000975:Antioxidants / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D002980:Climate; D004777:Environment; D016166:Free Radical Scavengers / Q000032:analysis*; D019787:Linoleic Acid / Q000737:chemistry; D000432:Methanol; D010084:Oxidation-Reduction; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves; D012623:Seawater; D013045:Species Specificity
D000975:Antioxidants; D016166:Free Radical Scavengers; D010936:Plant Extracts; D019787:Linoleic Acid; D000432:Methanol