Skip to main content

Table 1 Composition of biomass feedstocks (before pre-treatment) used in this study; composition of water insoluble substrates (WIS) after steam-explosion; carbohydrates composition of WIS after steam-explosion and hydrolysis

From: Yeast lipids from cardoon stalks, stranded driftwood and olive tree pruning residues as possible extra sources of oils for producing biofuels and biochemicals

  CS SD OTPR   
Composition of biomasses before pre-treatment (%)   
 Cellulose 35.0 ± 1.5 31.4 ± 0.6 30.2 ± 0.2   
 Hemicellulose 19.0 ± 1.1 14.9 ± 0.2 16.7 ± 0.1   
  Xylan 14.0 ± 1.1 12.1 ± 0.1 12.5 ± 0.2   
  Mannan 1.1 ± 0.1 1.2 ± 0.1 1.4 ± 0.2   
  Galactan 1.6 ± 1.1 0.6 ± 0.2 0.9 ± 0.1   
  Arabinian 2.2 ± 0.2 1.0 ± 0.2 1.8 ± 0.1   
 Lignin 29.4 ± 1.7 27.8 ± 1.7 21.0 ± 1.4   
  CS SD1 SD2 OTPR1 OTPR2
Composition of water insoluble substrate (WIS) after steam-explosion (%)
 Cellulose 54.0 ± 1.6 44.3 ± 0.3 46.8 ± 0.1 49.0 ± 0.8 44.7 ± 0.2
 Hemicellulose 6.0 ± 0.2 5.8 ± 0.1 0.8 ± 0.1 4.9 ± 0.1 3.1 ± 0.1
 Lignin 32.8 ± 0.7 44.0 ± 1.2 47.1 ± 0.1 38.9 ± 0.9 44.3 ± 0.6
Carbohydrates composition of hydrolyzed WIS obtained after enzymatic hydrolysis (g/l)
 Glucose 38.7 ± 0.9 40.6 ± 0.2 44.8 ± 0.2 40.5 ± 0.1 37.3 ± 0.2
 Xylose 4.7 ± 0.3 5.1 ± 0.1 0.5 ± 0 3.6 ± 0.1 3.1 ± 0.1
 Cellobiose 1.1 ± 0.1 1.3 ± 0.1 1.7 ± 0.1 1.7 ± 0.1 1.8 ± 0.1
WIS enzymatic hydrolysis yields (%)
 Glucose 78.7 ± 1.5 55.0 ± 0.2 63.2 ± 0.2 44.6 ± 0.3 55.2 ± 0.2
  1. Cellulose enzymatic hydrolysis yields calculated after steam-explosion and hydrolysis. CS cardoon stalks, SD stranded driftwood, OTPR olive tree pruning residues