Determination of free radical scavenging activity from aqueous extract of Curcuma mangga by DPPH method

[摘要] Curcuma mangga (mango ginger) belongs to the family of Zingiberaceae. The rhizome of C. mangga are morphologically similar to ginger (Zingiber officinale) with a little mango flavour. C. mangga can growth in tropical areas and easy found in Indonesia. The rhizomes of C. mangga were washed and cut into the small piece, then drying at room temperature for 6 days, and then grinded until get the powder of C. mangga. The powder of C. mangga was extracted with deminerahzed water by maceration for 6 hours. C. mangga extract was analysed with FTIR spectrophotometer to determine its functional groups. C. mangga extract was diluted at various of concentration (5, 10, 25, 50, 100, 250, 500 mg/L) using deminerahzed water. C. mangga extracts were tested the antioxidant activity using 0.002% DPPH at 517nm with UV-Vis spectrophotometer, and the IC50value of C. mangga extract is 212.70 mg/L.

[发布机构] Laboratory of Instrumentation and Analytical Science, Chemistry Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Arif Rahman Hakim, Surabaya; 60111, Indonesia^1

[效力级别] 化学

[关键词] Anti-oxidant activities;Aqueous extracts;Drying at room temperatures;Free radical scavenging activity;FTIR spectrophotometers;UV-Vis spectrophotometers;Zingiber officinale;Zingiberaceae