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Table 1 Composition of PWS and SWG

From: A strategy for synergistic ethanol yield and improved production predictability through blending feedstocks

PWS SWG
WIS Liquid Liquid
Components Percentage of DM Components Oligosaccharides Monosaccharides Components  
Glucan 68.3 ± 0.6 Sugars, g/L    Soluble solids, g/L  
Mannan 0.5 ± 0.4 Glucose BDL* 4.8 Glucose 205.4 ± 3.3
Xylan 4.3 ± 0.01 Mannose BDL* 1.0 Insoluble solids, g/L  
Galactan 0.3 ± 0.3 Xylose 59.8 28.2 Crude protein 32.5 ± 0.7
Arabinan 0.6 ± 0.2 Galactose BDL* 3.5 Residual mass 22.3 ± 1.4
ASL 0.9 ± 0.0 Arabinose BDL* 4.5   
AIL 28.7 ± 0.5 Inhibitors, g/L     
Total ash 5.1 ± 0.0 Acetic Acid 4.6    
   Furfural 3.8    
   HMF 0.5    
  1. Composition of water-insoluble solids (WIS) in PWS is expressed as percentage of WIS dry matter. Components dissolved in PWS liquid are expressed as concentrations. All components of SWG are expressed as concentrations.* below detection limit