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Table 2 Chemical composition of untreated and steam-exploded birch

From: Enhancing methane production from lignocellulosic biomass by combined steam-explosion pretreatment and bioaugmentation with cellulolytic bacterium Caldicellulosiruptor bescii

Birch Composition (%)
Arabinan Galactan Glucan Xylan Mannan Klason lignin
Untreated 1.1 ± 0.03 1.60 ± 0.05 37.6 ± 2.13 16.2 ± 0.72 2.8 ± 0.02 30.1 ± 1.10
Pretreateda 0.2 ± 0.01 0.9 ± 0.03 44.3 ± 2.09 9.7 ± 0.10 1.7 ± 0.04 39.4 ± 1.40
  1. The amounts of all components are expressed as a percentage of dry matter. The amount of carbohydrates was calculated using the mass of anhydrous sugar
  2. aThe steam-exploded material was not washed and represents the whole slurry obtained after the pretreatment