Study on production of ethanol from stems by Typha condition with concentrated sulphuric acid 0.1-1% at temperature 140-180° c for a period of. 5-10 minutes from the fine weather conditions showed that the concentration sulphuric amino concentration 0.5 percent at 180 degrees Celsius for a period of 5 minutes, and hydro output has been immobilized by Lycee as high as 97.1% glucose is then fermented with yeast S. cerevisiae to ATCC 24858. Lasung ethanol consumption has reached 90 percent.
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