Biopetrol means Bioethonol, it is an alcohol made by fermentation, mostly from carbohydrates produced in sugar or starch crops such as corn , sugarcane , or sweet sorghum . Cellulosic biomass , derived from non-food sources, such as trees and grasses, is also being developed as a feedstock for ethanol production. Ethanol can be used as a fuel for vehicles in its pure form (E100), but it is usually used as a gasoline additive to increase octane and improve vehicle emissions. Bioethanol is widely used in different parts of the world.