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Table 1 Chemical compositions of spruce wood chips reported in different reports

From: A process for producing lignin and volatile compounds from hydrolysis liquor

Hemicellulose, wt%

Cellulose, wt%

Acid-soluble lignin, wt%

Acid-insoluble lignin, wt%

Extractives, wt%

Reference/origin

17.0

47.2

2.8

26.5

3.9

Current work/Canadian

18.4

45.0

–

27.6

1.0

[24]/Danish

14.8

48.0

1.0

27.2

–

[23]/Swedish