From: High titer and yield ethanol production from undetoxified whole slurry of Douglas-fir forest residue using pH profiling in SPORL
Untreated forest residue
Bark (%)
Glucan (%)
Xylan (%)
Mannan (%)
K Lignin (%)
G + X + M a (%)
As harvested
5.9
38.4
4.4
7.5
30.5
50.3
Screening upgraded (FS-10)
4.7
41.0
5.7
9.7
29.3
56.4