Is it possible to chemically treat grass to make it digestible?

Is it possible to chemically treat grass after "harvesting" it to make it digestible by humans? I know we can "eat" grass, but we can't break it down in our stomachs. If there is some chemical treatment to partially break grass down into something we can digest, I see it possibly being used to end world hunger! I know we already treat bone to make it into gelatin, and I am wondering if something similar can be done for grass.




The indigestible component of grasses is [cellulose](http://en.wikipedia.org/wiki/Cellulose), which is polymerized glucose.


Yes, it is possible to hydrolyze the cellulose to glucose, which is of course digestible. 


The hydrolysis can be catalyzed enzymatically with a [cellulase](http://en.wikipedia.org/wiki/Cellulase), or using acid hydrolysis. 


The process of hydrolyzing cellulose is often discussed in the context of so called [cellulosic ethanol](http://en.wikipedia.org/wiki/Cellulosic_ethanol), as the glucose is then fermented to ethanol subsequent to hydrolysis.


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