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Bioresources and Bioprocessing

Table 3 Composition of the palm fiber (dry mass wt. %)

From: Optimization of ethanol-extracted lignin from palm fiber by response surface methodology and preparation of activated carbon fiber for dehumidification

Chemical component

%w/w in crude material

Testing method

Lipid wax

3.6 ± 0.12

GB/T 5889-86 (benzene:ethanol, 2:1 in volume)

Water-soluble substance

3.8 ± 0.16

GB/T 5889-86 (distilled water)

Pectin

3.4 ± 0.14

GB/T 5889-86 (5 g/L ammonium oxalate)

Hemicellulose

28.5 ± 0.43

GB/T 5889-86 (20 g/L NaOH)

Klason lignin

34.6 ± 0.21

NREL10.1.6 (72% H2SO4)

Cellulose

26.1 ± 0.36

GB/T 5889-86

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