Antioxidant evaluation of etlingera elatior extracts using ultrasonic assisted extraction (UAE) in different solvent

Etlingera elatior, also known as Kantan, was a popular traditional drug and food enhancer in Malaysia. In this study, methanol, hexane and ethyl acetate were used as a solvent and an Ultrasonic Assisted Extraction (UAE) extractor was applied in the extraction process. The yield of methanol extracted by ultrasonic method was 9.56% in hexane, 9.55% in ethyl acetate, and 9.31% in hexane. The 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical scavenging assay was used to measure the antioxidant activity of the Etlingera elatior extraction. The concentration of antioxidant activity was calculated using the IC50 extraction of Etlingera elatior. Based on the study, Etlingera elatior concentration potential for antioxidant activity against DPPH free radicals was 39.10 μg/ml in methanol, 37.03 μg/mL in hexane, and 25.00 μg/mL in ethyl acetate. The primary component are observed with the highest phytochemical analysis score was oleic acid, caryophyllene, hexadecenoic acid, stigmasterol and dodecanoic acid.