You can convert cellulose into glucose but it takes things like this (special cultured bacteria, extremely processed cellulose, and an ultrafilter to remove glu

You can convert cellulose into glucose but it takes things like this (special cultured bacteria, extremely processed cellulose, and an ultrafilter to remove glucose to drive the reaction): https://onlinelibrary.wiley.com/doi/abs/10.1002/bit.260220806 https://onlinelibrary.wiley.com/doi/abs/10.1002/bit.26022080... Or strong acids and 190°C over a catalyst. Cellulose is remarkably strong, especially with lignin in the structure too. We're lucky anything can digest it at all. Which brings me to mycology, probably the best way to extract energy from cellulose for humans. Sterilize, inoculate, keep moist, and harvest a significant percentage of the source material as good carbohydrates and protein.