In vitro antioxidative activities and polyphenol content of Eugenia polyantha Wight grown in Indonesia
| Autor: | Kazutaka Itoh, Raden Arthur Ario Lelono, Sanro Tachibana |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Flavonoids
Traditional medicine Free Radicals Plant Extracts Syzygium Polyphenols Catechin Free Radical Scavengers Ascorbic acid Effective dose (pharmacology) In vitro Antioxidants chemistry.chemical_compound chemistry Phenols Polyphenol Indonesia visual_art Botany visual_art.visual_art_medium Humans Bark Gallic acid Medicine Traditional Agronomy and Crop Science |
| Zdroj: | Pakistan journal of biological sciences : PJBS. 12(24) |
| ISSN: | 1028-8880 |
| Popis: | Antioxidative activities of three bark extracts (methanol, methanol-water and water) from Eugenia polyantha Wight grown in Indonesia were evaluated using various in vitro assays; 2, 2-diphenyl-1-picrylhydrazyl radical-scavenging, hydrogen peroxide-scavenging and beta-carotene bleaching assays. From the assays, Eugenia polyantha bark extracts were found to be potential antioxidative activities. The methanol-water extract showed the highest level of free radical-scavenging activity (Effective dose (ED50) = 0.18 mg mL-1) and protection from beta-carotene bleaching (85.7% at 100 microg mL-1). The methanol-water extracts showed the highest total phenolic content (856 mg gallic acid equivalent (GAE)/g and 161 mg catechin equivalent (CE)/g) and total antioxidative capacity (449 mg ascorbic acid equivalent (AAE)/g). Furthermore, it exhibited dose-dependent antioxidative activities. A relationship between total antioxidative capacity and total phenolic content was recognized in the three extracts from Eugenia polyantha bark. |
| Databáze: | OpenAIRE |
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