The effect of fermentation time on bioethanol levels from sugar cane (saccharum officinarum)

High energy consumption has an impact on the crisis caused by decline in fossil reserves, so that Indonesia must have other alternatives form of biofuels, namely bioethanol. Knowing effect fermentation time ethanol content, pH value, and brix content obtained from sugarcane juice is purpose this study. Using completely randomized design (CRD) with factor. Research shows acidity (pH), but no sugar (brix). The best treatment was at 6 days 7.67%, (pH) 4.87%, (brix) 6.33%. ratio high low amount produced influenced yeast growth during process.