最后这些糖在酵母或细菌的发酵作用下产生生物乙醇或其它生物燃料。
Finally, these sugars are fermented with yeast or bacteria to produce bioethanol or other biofuels.
细菌的发酵作用有助于分解消化道内的植物纤维,但由于大象平均每天要吃150公斤左右的植物,其中约有60%都是直接排出体外。
Bacterial fermentation helps to break cellulose down in the digestive tract, but of pachyderms' average daily intake of 150kg or so of plant matter, about 60% passes right through.
呼吸作用能够为细菌提供更大的能量,但这个过程需要氧,而内脏里氧气稀薄,因此大多数细菌都是利用发酵作用来分解上述物质的。
But it requires oxygen, which is sparse in the gut. So most bacteria go the fermentation route.
应用推荐