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 aci...

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Veröffentlicht in:	Journal of agricultural and food chemistry 1999-04, Vol.47 (4), p.1749-1754
Hauptverfasser:	Masuda, Toshiya, Yonemori, Sigetomo, Oyama, Yasuo, Takeda, Yoshio, Tanaka, Tomochika, Andoh, Tadao, Shinohara, Ayumi, Nakata, Mami
Format:	Artikel
Sprache:	eng
Schlagworte:	Antioxidants - analysis antiradical activity assays Biological and medical sciences Chromatography, High Pressure Liquid Climate coastal plant communities cytotoxicity Environment Food additives Food industries Free Radical Scavengers - analysis free radicals Fundamental and applied biological sciences. Psychology General aspects hydrogen peroxide inhibition leaves linoleic acid Linoleic Acid - chemistry Methanol oxidation Oxidation-Reduction oxidative cell death assay plant extracts Plant Extracts - chemistry Plant Leaves reduction Research and development. New food products, dietetic foods and beverages Seawater Species Specificity subtropics thymocytes
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Zusammenfassung:	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. Keywords: Antioxidant activity; seashore plant; DPPH; linoleic acid; oxidative cell death; ellagic acid
ISSN:	0021-8561 1520-5118
DOI:	10.1021/jf980864s