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Table 1 Chemical compositions of the as harvested and screening upgraded (FS-10) Douglas-fir forest residue

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
  1. aMajor carbohydrate = glucan (G) + xylan (X) + mannan (M).