Biofuels Learn To Eat Less
The feast is coming to an end for biofuel producers. Their supposedly clean, green fuel has been gobbling up some of the choicest food crops, including corn, rape and soya, leading to controversy and protests around the world...
It is not the only company with big claims for efficient bioethanol yields. ZeaChem, based in Lakewood, Colorado, says its process can convert a tonne of feedstock into over 500 litres of bioethanol. That's because the firm uses acetogenic bacteria found in the guts of insects - rather than standard yeast - to convert the sugar into ethanol.
>> back to top