GAMBARAN PERBEDAAN KONSENTRASI EKSTRAK ETANOL DAUN KUNYIT (Curcuma longa L.) TERHADAP TOTAL FENOLIK SECARA SPEKTROFOTOMETRI VISIBEL

Turmeric leaves (Curcuma longa L.) contain secondary metabolites, one of which is a phenolic compound. The choice solvent important in the extraction process, ethanol chosen because it can attract compounds that are soluble non-polar to polar solvents. concentrations this study were 60, 70, 80, and 96% with method used was maceration. screening test obtained positive results for content. This indicated by appearance fluorescent blue-black stain on plate after being sprayed FeCl3 reagent. TLC comparison Rf value (gallic acid) 0.53. values 90 0.53; 0.55; 0.57; 0.60; 0.60. determine total content folin-ciaocalteu. Analysis visible spectrophotometry average extract 96%, respectively 1.078; 1.796; 1.964; 1.842; 1.787 GAE mg/g extract. statistical tests data normally distributed but not homogeneous, there significant differences at 96%. conclusion highest turmeric leaf concentration 80%, an effect extract, each used.Keywords :Turmeric Leaves L.), Total Phenolic Level, Ethanol Concentration, Visible Spectrophotometry