PENGARUH SUHU DAN MODEL KESETIMBANGAN EKSTRAKSI ZAT WARNA BIRU PADA DAUN TARUM BERAT 50 g

Abstract

Tarum is a one of plant that kajang tribe people use as a dye on a sarong and clothing. This plant contains blue orindigo dye with a color withdrawal system with extraction system. The gpal of research is studying the effect oftemperature ratio to Weight (10, 25, 50,100, 150 and 200) gram and operating temperature (30, 40 50 and 60) oC for 120min with 500 rpm stirring speed for extract tarum leaf using water as a solvent. Indigo in the extracting solution wastaken every 10 minutes, analyzed using UV-VIS Spectrometer at 480 nm wavelength obtained absorbed, convertedstandard curve equation and obtained the concentration of blue dye. The results showed that at temperature 30 oC,volume 500 ml time 120 minutes weight 150 gram, indigo concentration 0.0714 g / ml. The best operating temperatureis 40 oC at 50 grams of tarum leaf in 500 ml, langmuir equilibrium equations = . ∗. ∗and Xs = 0.0346 gindigo/g tarum leaves.