With paddy rice, for example, everything other than the edible seeds has always been seen as waste. Indeed, the rice stalk is generally burnt, causing air pollution, but in fact it is high-quality cellulose that in the future promises to be a "star performer" in the biofuels industry.
以水稻為例，除了可以食用的稻米外，過去被視為「農業廢棄物」、甚至焚燒造成空氣污染的稻稈，就是一種優質纖維素，也將是未來的「能源之星」。