Antioxidant activity, total phenolics level and cytotoxicity of the methanol extracts from the young sprouts of 5 Korean woody salad plants were determined. Methanol extracts of Kalopanax pictus had the highest DPPH radical scavenging activity, with an IC50 value of 23.5mg 100g-1, and followed by Valeriana fauriei (43.1mg 100g-1), and Morus alba (>100mg 100g-1). Total phenolic content showed the highest amount in methanol extracts from Kalopanax pictus (23.7mg 100g-1), and followed by Valeriana fauriei (22.7mg 100g-1), Aralia elata (16.8mg 100g-1) and Morus alba (14.2mg 100g-1). In a MTT assay, methanol extracts of Aralia elata with IC50 values of 151.0 and 140.7ɠ mL-1 showed the most potent cytotoxicity on Calu-6 and MCF-7, respectively. On the other hand, methanol extracts of Kalopanax pictus (IC50 = 96.5ɠ mL-1) showed the highest activity against HCT-116, and followed by those of Aralia elata (123.3ɠ mL-1), and Actinidia arguta (162.0ɠ mL-1). Total phenolic content of the tested plant extracts was correlated with the DPPH radical scavenging activity, suggesting the phenolic compounds may contribute to the antioxidant properties of Korean salad plants.
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MATERIAL AND METHODS
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LITERATURE CITED