Outreach in Biotechnology

crops or waste products (e.g. used cooking oil, citrus peels, coffee grounds) that can be used as, or converted into, biofuels. Each feedstock crop has advantages and disadvantages in terms of how much usable material it yields, where it can grow, and how energy and water-intensive it is to grow and convert into fuel. First generation feedstocks are already widely grown and used for biofuel production, but are usually also used for food and feed production, which means that they sometimes create food versus fuel conflicts. Second generation feedstocks (like perennial crops and algae) have high potential biofuel yields, but have not been traditionally cultivated for food or fuel. See also biofuels, biomass.