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