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In page Ethanol fuel in Brazil:

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Sucrose extracted from sugarcane accounts for little more than 30% of the chemical energy stored in the harvested parts of the mature plant; 35% is in the leaves and stem tips, which are left in the fields during harvest, and 35% are in the fibrous material (bagasse) left over from pressing. Most of the industrial processing of sugarcane in Brazil is done through a very integrated production chain, allowing sugar production, industrial ethanol processing, and electricity generation from byproducts.[1][2] The typical steps for large-scale production of sugar and ethanol include milling, electricity generation, fermentation, distillation of ethanol, and dehydration.[citation needed]