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Table 1 Pretreatment conditions and chemical composition of pretreated lignocellulosic substrates.

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

Substrate Pretreatment conditions Composition of pretreated feedstocks Abbreviation
SO2-steam pretreatmenta Arab Galc Glud Xyle Manf AILg  
Corn stover 190°C, 5 minutes, 3% SO2 0.8 0.2 55.1 12.0 1.9 18.9 SPCS
Corn fiber 190°C, 5 minutes, 4% SO2 6.9 2.8 38.2 15.3 2.2 12.6 SPCS
Douglas fir 200°C, 5 minutes, 4% SO2 BDLg BDL 50.6 0.4 1.0 47.0 SPDF
Lodgepole pine 200°C, 5 minutes, 4% SO2 BDL BDL 52.4 0.6 1.0 45.9 SPLP
Ethanol-organosolv pretreatment        
Corn fiber 170°C, 30 minutes; 65% EtOH, 0.75% H2SO4 2.1 1.6 57.9 11.5 3.0 15.7 OPCF
Poplar 195°C, 40 minutes; 70% EtOH, 1.0% H2SO4 BDL BDL 77.0 6.0 2.4 16.0 OPP
Lodgepole pine 170°C, 60 minutes; 65% EtOH, 1.1% H2SO4 0.1 0.1 74.8 1.6 1.8 17.3 OPLP
  1. aSulfur dioxide.
  2. bArabinan.
  3. cXylan.
  4. dGlucan.
  5. eGalactan.
  6. fMannan.
  7. gAcid-insoluble lignin.
  8. hBelow detectable level.