Study on Antioxidant Activities and Total Phenolic Contents Analysis from the Elixir Extracts
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Abstract
According to folk medicine beliefs, elixir was a body tonic with properties that help people stay healthy and live longer. The purposes of this research were to compare the antioxidant activities, and to compare the total phenolic contents from bolus elixir extracts. The drug was extracted by boiling with distilled water and maceration with 95%, 70%, and 50% ethanol, respectively. The results showed that extracts with 50% ethanol had the best antioxidant activities, and found the highest total phenolic contents as follows: 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay gave IC50 of 87.23±1.53 µg/mL, Ferric reducing antioxidant power (FRAP) assay showed the value was 40.96±0.91 mgFe2+/g, and Trolox equivalent antioxidant capacity (TEAC) value was 20.33±0.85 mgTrolox/g, and total phenolic contents was equal to 25.53±1.54 mg GAE/g. The extracts with 70%, 95% ethanol, and distilled water showed less effective than the extracts with 50%, respectively.
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ลิขสิทธ์ ของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนครReferences
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