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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