Biological activities, total phenolic compound and TLC fingerprint of Eclipta prostrata (L.) L., Sphagneticola calendulacea (L.) Pruski and Sphagneticola trilobata (L.) Pruski
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Abstract
Eclipta prostrata (L.) L., Sphagneticola calendulacea (L.) Pruski and S. trilobata (L.) Pruski are the member of Asteraceae family. Similar characteristics may be misleading and misused. This study aimed to compare biological activities of the ethanolic extract and water extract of these plants. Antibacterial activity using broth dilution method for MIC and MBC determination, anti-inflammatory activity using lipopolysaccharide-induced nitric oxide production in RAW 264.7 macrophage cells, antioxidant activity using DPPH radical scavenging assay, total phenolic contents using Folin-Ciocalteu reagent and chemical constituents were investigated by TLC fingerprint. All the tested extracts exhibited low antibacterial effect against S. aureus, P. aeruginosa and MRSA. The ethanolic extracts showed significant stronger inhibition on nitric oxide production stronger than water extracts and the standard anti-inflammatory medicine, diclofenac. Among them, S. trilobata a greatest inhibitory activity with IC50 33.43±4.76 µg/ml. The ethanolic extracts of S. calendulacea has showed the highest antioxidant activity and phenolic content with EC50 of 43.48±1.00 µg/ml and 55.46±7.18 mg GAE/g crude extract, respectively. TLC fingerprint of the ethanolic extracts of three plants were identified. In conclusion, W. chinensis, S. calendulacea and S. trilobata are different both of biological activities and chemical identification by TLC.
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References
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