Pengaruh pH Awal dan Suhu Penyimpanan terhadap Stabilitas Betasianin Ekstrak Pewarna dari Bunga Kenop (Gomphrena globosa L.)

Globe amaranth is a flower that can be used as natural dye. The has high betacyanin. This study aimed to determine the effect of initial pH and temperature in stability extent globe dye extract, with determined maximum extract during retention. experiment complete randomized design two factors. first factor was consist 4, 5, 6. second storage 4±1ºC 28±2ºC. data were analyzed through analysis variance each results showed had significant on betacyanin levels value brightness level (L*), redness (a*), yellowish (b*) extract. (a*) third fourth weeks, only yellowness week. interaction treatments every week (L*) week, weeks. from stable at 4 (4±1ºC) cold storage. During control retention within four weeks caused decrease 34.76%, 61.85%, it an increase 70 ,91%, 67.21%.
 Keywords : betacyanin, pH, temperature, stability.