Second generation biofuels are now being produced from a much broader range of feedstocks including the cellulose in dedicated energy crops ( perennial grasses such as switchgrass and Miscanthus giganteus ) , forestry materials , the co-products from food production , and domestic vegetable waste .
Second generation biofuels are now being produced from the cellulose in dedicated energy crops ( perennial grasses such as switchgrass and Miscanthus giganteus ) , forestry materials , the co-products from food production , and domestic vegetable waste .