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Table 2 Composition of raw wheat straw (RWS) hydrothermal treated wheat straw (HTT WS), ensiled wheat straw (EWS) and hydrothermal treated ensiled wheat straw (HTT EWS) in the solid fraction after HTT (if pretreated)

From: Ensiling of wheat straw decreases the required temperature in hydrothermal pretreatment

  Glucan Xylan Arabinan Lignin Ash Extractives
  (w/w % of DM)
RWS 40.2 ± 0.2 22.3 ± 0.1 3.3 ± 0.0 18.6 ± 1.1 5.2 ± 0.2 6.3 ± 0.2*
HTT WS 170°C 40.3 ± 2.4 24.8 ± 0.8 2.3 ± 0.1 21.3 ± 0.1 4.8 ± 0.3  
HTT WS 180°C 45.1 ± 1.5 25.2 ± 0.2 2.0 ± 0.0 21.6 ± 0.3 4.0 ± 0.2  
HTT WS 190°C 50.5 ± 0.2 22.4 ± 0.4 1.5 ± 0.2 23.0 ± 0.2 5.0 ± 0.2  
EWS 39.7 ± 0.0 24.1 ± 0.4 2.6 ± 0.0 17.5 ± 1.2 3.1 ± 1.1 6.9 ± 0.8
HTT EWS 4w 170°C 40.2 ± 1.0 20.1 ± 1.3 1.3 ± 0.2 23.0 ± 0.4 4.2 ± 0.0  
HTT EWS 4w 180°C 43.2 ± 1.0 18.5 ± 1.2 1.6 ± 0.1 24.5 ± 0.4 4.2 ± 0.3  
HTT EWS 4w 190°C 54.3 ± 0.6 11.8 ± 0.6 0.4 ± 0.0 25.9 ± 0.6 4.0 ± 0.1  
  1. *only ethanol extraction.