Table 3

Composition of the liquid fraction of the two batches of pretreated material

Component

Concentration, g/L

Batch 1

Batch 2

Glucose

13.3 ± 0.8 (91.7)^a

27.1 ± 0.1 (42.1)^a

Mannose

22.1 ± 2.0 (88.3)^a

28.7 ± 0.1 (41.7)^a

Xylose

8.6 ± 0.8 (101.5)^a

11.4 ± 0.0 (47.5)^a

Galactose

3.6 ± 0.1 (89.0)^a

4.5 ± 0.0 (42.0)^a

Arabinose

ND

ND

HMF

1.93 ± 0.0

2.72 ± 0.0

Furfural

0.85 ± 0.0

1.16 ± 0.0

Lactic acid

3.80 ± 0.0

4.75 ± 0.0

Acetic acid

4.92 ± 0.0

5.87 ± 0.0

HMF = 5-hydroxymethylfurfural; ND = not done.

Data are mean values ± SD unless otherwise indicated.

^aMean value ± SD, the percentage of sugars in monomeric form compared with total sugars is given in brackets.

Hoyer et al. Biotechnology for Biofuels 2010 3:14   doi:10.1186/1754-6834-3-14