Starch-containing plants cassava

Starch-containing plants Another potential ethanol feedstock is starch. Starch molecules are made up of long chains of glucose molecules. Hence, starch-containing materials can also be fermented after the starch molecules have been broken down into simple glucose molecules. Examples of starchy materials commonly used around the world for ethanol production include cereal grains, potatoes, sweet potatoes and cassava. Typical cereal grains commonly used for ethanol production in the EET are rye and wheat. 

The polysaccharide starch is found in most plants as a storage compound however, only five plants, namely maize, rice, wheat, potatoes, and cassava account for the majority of worldwide produced starch-containing plants. Roughly 2.7 billion tons of these crops are annually harvested. The class of sugar-containing crops contains only two plants namely sugar cane and sugar beet of which about 2 billion tons are... 

The most common sources of starch in various regions of the world are potato, maize, cassava (manioc, tapioca, yucca), and rice. Popularity of a given starch and starchy plants do not go together. For instance, in many regions of the world wheat and rye are very commonly used. Wheat starch is only randomly isolated, and rye starch is only exceptionally available. Rye grains contain mucus, which seriously obstructs isolation of starch from this source. 

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