Ethanol can be produced from agricultural raw materials can be divided into three major types of
raw starch, sugar, raw materials, scrap material is cellulose. The raw starch and cellulose is digested by acid or enzymes into sugar before. The raw material is sugar can already be used to ferment it. The duration of the fermentation to ethanol is about 48 hours with ethanol at a concentration of 8-12% by volume
, microorganisms can produce ethanol has many species of yeast (Yeast) it. were used to produce ethanol widely because it can grow faster and larger quantities. The scientists found that bacteria (Bacteria) Zymomonas mobilis strain capable of producing ethanol is better than a lot like yeast in the fermentation period shorter than 3-4 times the volume of sugar equal. The effect of ethanol in line with the theory. However, it is inferior yeast bacteria with only 3 types of sugar, glucose, fructose, sucrose, glucose, but it can be used in a variety of yeast cell. But so bacteria can use a lot more, so it is modified genetic engineering (genrtic engineering) to improve the breed to have your possessions is better. Can use sugar-rich and resistant to adverse conditions have improved.
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