Biofuels are transportation fuels produced from biomass. Biofuels fall into two broad categories based on their feedstock and the process used to produce the finished product. First-generation biofuels are produced in two ways. One way is through the fermentation of either a starch-based food product, such as corn kernels, or a sugar-based food product, such as sugar cane, into ethanol, also known as ethyl alcohol, or "Gasohol." Another way is by processing vegetable oils, such as soy, rapeseed and palm, into biodiesel, a nonpetroleum-based diesel fuel.