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Table 2 Coded and actual levels of variables chosen for the statistical design of experiment.

From: Cellulose accessibility limits the effectiveness of minimum cellulase loading on the efficient hydrolysis of pretreated lignocellulosic substrates

Factors Level Pretreatment
   SO2steama Ethanol organosolv
   CS,bDF,cLPd CFe CF LP, Pf
Solids loading, % -1 2 2 2 2
  0 6 6 6 6
  1 10 10 10 10
Hydrolysis time, hours -1 24 24 24 24
  0 48 48 48 48
  1 72 72 72 72
Cellulase,g mg protein/g glucan -1 25 5 13 20
  0 50 15 26 45
  1 75 25 39 70
β-glucosidase,h mg protein/g glucan -1 0 0 0 0
  0 15 15 10 10
  1 30 30 20 20
  1. aSO = sulfur dioxide.
  2. bCS = corn stover.
  3. cDF = douglas fir.
  4. dLP = lodgepole pine.
  5. eCF = corn fiber.
  6. fP = poplar.
  7. gCelluclast 1.5L.
  8. hNovozym 188.