For fermentation to take place you need raw material, or feedsto

For fermentation to take place you need raw material, or feedstock13, as it is known in the biofuelsindustry. Anything will do as long as it can be broken down intosugars, with the byproduct ideally burnt to produce electricity to run the plant.
【正确答案】：要想实现发酵，就需要原材料，即生物燃料行业所说的“给料”。任何东西只要能分解为糖都可以利用。理想的做法是，用其副产品燃烧发电可维持工厂自身的运转。