Abstract
Evaluation of Total Phenolic Compound and Cytotoxic Activity of Clinacanthus nutans
Department of Pathobiology, Faculty of Science, Mahidol University, Ratchathewi, Bangkok 10400, Thailand
Correspondence Address:
Wannee Jiraungkoorskul Department of Pathobiology, Faculty of Science, Mahidol University, Ratchathewi, Bangkok 10400, Thailand E-mail: wannee.jir@mahidol.ac.th
Clinacanthus nutans leaves were extracted in distilled water at 0.5, 1, 3, 5 and 24 h. The plant extraction were determined the highest amount of total phenolic compound and used for evaluating the cytotoxicity test. The median (LC50) and 90% lethal concentration (LC90) against Artemia salina at varied concentrations of this plant extractions as 0, 400, 800, 1600, 3200, 6400 and 12800 µg/ml were evaluated within 24 h exposure. The result revealed that the total phenolic compound measurements in each time extraction were 34.68±3.17, 46.71±9.31, 36.13±7.06, 26.53±8.83 and 30.15±3.09 mg gallic acid equivalent per g of extract, respectively. Due to the highest amount of total phenolic compound, the 1 h aqueous extract of C. nutans leaf expressed the 24 h LC50 and LC90 values against A. salina were 7,151.1 and 12,008.7 µg/ml, respectively.
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