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Some concepts I do not understand in Algae to ethanol.

PostPosted: Thu Feb 19, 2009 10:50 am
by cacofonix
I was going through some literature on algae-to-ethanol when I came across the following

"Algae have a tendency to have a much different makeup than do most feedstocks used in ethanol, such as corn and sugar cane. There are some topics and challenges that would need to be addressed, such as (1) Yeast matching to feedstock sugars, (2) Sugar extraction, and (3) High ash feedstock. But overall, there is a distinct possibility that algae could be a good feedstock for ethanol."

I do not understand the first two - Yeast matching to feedstock sugars and sugar extraction. What are these and why are these considered problems or challenges?