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Table 2 Acetic acid catalyzes the hydrolysis of wood polysaccharides during pretreatment

From: Natural acetylation impacts carbohydrate recovery during deconstruction of Populus trichocarpa wood

Added acetic acid

Xylose

Total effective xylose release

Glucose

Total effective glucose release

Monomeric

Oligomeric

Furfural

Monomeric

Oligomeric

HMF

0.0

4.01 ± 1.42a

59.1 ± 7.62a

3.61 ± 1.60a

84.4 ± 19.1a

1.40 ± 0.16a

10.2 ± 1.67a

0.41 ± 0.08a

13.0 ± 0.97a

3.2

7.93 ± 1.05b

56.3 ± 8.60a

10.8 ± 4.84a

97.4 ± 18.9a

2.52 ± 0.77a,b

14.9 ± 2.81a

1.16 ± 0.53a

19.1 ± 3.95a,b

6.3

11.2 ± 2.28c

72.1 ± 19.4a

21.4 ± 9.12a

148 ± 25.9b

3.36 ± 0.76b,c

19.1 ± 3.85b

1.61 ± 0.91a

27.7 ± 3.90b,c

9.4

9.90 ± 3.60a

74.0 ± 22.9a

31.0 ± 16.3a

153 ± 44.2b

2.24 ± 0.87c

22.7 ± 2.72b

3.14 ± 1.74a

29.4 ± 4.23c

  1. All values are in milligrams per gram ± standard error of the mean. Total effective sugar release is the sum of all three fractions, with degradation products converted on a molar ratio to xylose. Pretreatments were at 180 °C for 70 min. Superscripts indicate statistical significance at p value <0.05