At present, the most widely used substance is ethanol, which can be made from sugar cane, sugar beet and maize (or corn, as it is called in America).

现阶段使用得最多的燃料材料是乙醇，这种材料可以提炼于甘蔗、甜菜与玉米(美国称为包谷)。

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One gene comes from maize, or corn, and the other from a soil bacterium.

其中一个基因来自于玉米，另一个基因来自于土壤细菌。

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Corn,or maize,is mostly fed to animals or made into ethanol fuel and high-fructose corn syrup.

VOA: special.2010.12.07

We see about the same for maize or corn.

BBC: Climate shifts 'hit global wheat yields'

In the fields, in the shadow of giant billboards giving motivational advice or productivity targets, women in headscarves bend over crops of maize, corn and rice.

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Also in Germany, there are aerobic digesters which are fed by maize (corn) rather than waste and so the same argument would arise over growing crops for fuel or for food as applies to biodiesel production and must ring an eventual death-knell for both biodiesel and biogas, if the latter is made from food too.

FORBES: U.K. Joins Europe On Biogas 'Waste Into Energy' Strategy