In the sugar industry Ravens sugar is industrial waste that can be recycled to create valuable energy. The production of fuel ethanol. The process of selective breeding for ethanol yeast is a very important factor. This research is to study the production of ethanol by yeast strains. Saccharomyces cerevisae which features heat resistant Studies carried out by the addition of yeast fermentation and the growth of yeast, a temperature at different test temperatures 37 to 40 degrees by this research will be the right temperature to produce ethanol using. Yeast heat and can help reduce costs in the manufacturing process and reduce air pollution causes global warming.
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