Abstract
Benchalokawichian (BLW) remedy is a Thai traditional medicine that has been notified in the List of Medicine Products of the National List of Essential Drugs A.D. 2006 and has long been used as an antipyretic. The phytochemicals of the 70% and 95% ethanolic extracts of were studied by color reaction test and HPTLC analysis. The BLW remedy showed a highest amounts of 70% ethanolic extractives (ca. 3.99 ± 0.60% of dry material weight). The several ethanolic extracts showed similar qualitative phytochemicals. The major of phytochemicals identified in these extracts were alkaloids, flavonoids, tannins, and polyphenols. The antioxidant activity was assessed using the 2,2-diphenyl-1-picrylhydrazyl assay. The analysed 70% ethanolic extract showed a highest antioxidant activity at IC50= 526.09 µg/ml and both extracts not showed tyrosinase inhibitory effect. The 95% ethanolic extract showed the greatest anti-propionibacterium acnes activity with inhibition zone of 10.10 ± 0.45 mm and minimum inhibitory concentration (MIC) was 5.05 mg/ml
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