What is the difference between sugarcane based ethanol and ethanol derived from other foods e.g. rice and corn

Question

We all know that ethanol fuel derived from rice or corn is not good because it contributed to the major food crisis. But I read in a TIME magazine that sugarcane based ethanol fuel is good fuel for cars. What makes it so different from ethanol fuel derived from rice and corn?

Answer 1

Ethanol is made when yeast ferment sugars to alcohol.  Corn has sugars available for fermentation, but sugarcane has much more sugar in it.

However there are more corn farmers who vote, so politicians take care of them so they will vote.

Answer 2

their difference is that sugarcane based is good enough to reduce emissions. it will be the best ethanol to use if politicians really want to make ethanol.

Answer 3

The difference is in the amount of sugar that can be converted to alcohol.

You can work it out per ton or per acre used to grow the crop.

Sugarcane is the best. Brazil has been self sufficient using sugarcane based ethanol since the last oil crisis.

Answer 4

Ethanol is an alcohol formed after fermentation of sugars (glucose). Ethanol formed from  sugar cane is formed directly from the sugar cane juice which contains glucose that is converted to ethanol under the presence of enzymes.

Other starch souces  like rice and corn have to first convert the maltose in them to glucose then to ethanol.  

But the ethanol is all the same in both cases.

Answer 5

sugar CANE CAN BE GROWN in great ABUNDANCE IN USA  we JUST NEED TO LET big oil   {LIKE bush,Darth Vader}IN ON THE PROFITS

Answer 6

Sugarcane doesn't grow in abundance in the US.