Estimation of Total Phenolics and Free Radical Scavenging of Turmeric ( Curcuma longa ) (original) (raw)

Turmeric “Curcuma longa” member of Zingiberaceae family is well known for its curative potential against diseases. Disease preventive role of turmeric and other plant foods is due to the bioactive components such as phenolic acids, tannins and flavonoids. For the current study, antioxidant activity of turmeric extracts was investigated against DPPH free radical scavenging activity. Proximate analysis and total phenolic contents of ethanol, methanol and water extracts of turmeric were also carried out. The total phenolic content (TPC) means related to three solvents at their different concentrations i.e. Ethanol (60%), Ethanol (80%), methanol (60%), methanol (80%) and aqueous extract were 678.76 mg GAE/ 100 g, 745.76 mg GAE/ 100 g, 523.87 mg GAE/ 100 g, 682.43 mg GAE/ 100 g and 496.76 mg GAE/ 100 g respectively. Free radical scavenging activities of three solvents of turmeric at their different concentrations i.e. Ethanol (60%), Ethanol (80%), methanol (60%), methanol (80%) and aqueo...