what crops can ethanol be sourced from
9.2 billion gallons of ethanol produced (approximately 10 billion gallon capacity). Ethanol can be fermented from many sources of starch, including corn, wheat, grain sorghum, barley, and potatoes, and from sugar crops such as sugar cane and sweet sorghum.Because there has been has been an abundant supply of corn, most of the ethanol made in the United States is from corn.thanol is a grain alcohol that can be blended with gasoline and used in motor vehicles. Many gasoline stations provide a blended fuel, which typically is 10 percent ethanol and 90 percent gasoline.