KAJIAN PERBEDAAN KONSENTRASI PELARUT ETIL ASETAT TERHADAP KARAKTERISTIK EKSTRAK ZAT WARNA DARI SABUT KELAPA (Cocos nucifera L)

The aim of this study was assess concentrations of solvent ethyl acetate to extract the dye characteristics of coco. Preliminary research carried out for determining the ratio between coconut fiber and 96% ethyl acetate solvent based on the highest yield 3.62% at a ratio of 1: 2, and based on the organoleptic test showed a comparison of coconut fiber with a solvent in terms of color was the same. The main research used the concentration of ethyl acetate 36%, 46%, 56%, 66%, 76%, 86%, and 96% showed a correlation between the concentration of the solvent to the average yield of coconut fiber extract dye where the higher concentrations of solvent, the lower the average yield of the extract obtained. Based on organoleptic test at a concentration of 96% ethyl acetate in terms of color preferred by the panelists. There is a correlation between the concentration of solvent and water content of the dye where the higher concentrations of solvent ,the lower the water content in the extract dye produced . There is a correlation between the concentration of ethyl acetate and the tannin levels where the higher concentration of solvents, the higher levels of tannin extract dye coconut fiber. Rf value known to dye the coconut fiber extract ranged from 0.702 to 0.723 where the value is close to the value of Rf tannins 0.737. Keywords : dye , Tanin , coconut fiber , ethyl acetat