Abstract
Infection is one of the health problems and a disease that mainly causes death. Malaria is a parasitic infection that is transmitted through the Anopheles sp. The female then causes infection and besides malaria, other contaminants that caused infection are bacteria such as Escherichia coli and Staphylococcus aureus. This study aims to determine the antioxidant, antimicrobial, and antiplasmodial activity of Sonchus arvensis L. ethyl acetate fractions. In vitro antiplasmodial activity was carried out by Rieckman methods against Plasmodium falciparum strain 3D7. In vitro antioxidant activity was conducted by Prieto method against (1,1-diphenyl-2-picrylhydrazyl (DPPH). Then antimicrobial activity was performed using well diffusion method against Escherichia coli and Staphylococcus aureus. Maceration of S. arvensis L. dried leaves used n-hexane and ethyl acetate successively. Then the ethyl acetate extract was fractionated by vacuum column chromatography, using n-hexane and ethyl acetate as mobile phases. There are five fraction groups based on thin-layer chromatography (TLC) analysis. The IC50 of antioxidant and antiplasmodial activity showed that fraction IV was the lowest value and categorized as active for antioxidant (IC50=22.56 μg/mL), for antiplasmodial (IC50=12.07 μg/mL). Fraction IV also had antimicrobial activity, with diameter of inhibition zone (DIZ) of 19.22 mm against Escherichia coli and 17.167 mm against Staphylococcus aureus.
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