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Official Journal of the Japan Wood Research Society

Table 1 Chemical composition of empty fruit bunch (EFB) raw material and pulps

From: Preparation of dissolving pulp from oil palm empty fruit bunch by prehydrolysis soda-anthraquinone cooking method

 

Kappa number

Yield

Acid-insoluble (soluble) lignin

Glucan

Xylan

Other sugars

Extractive

Ash

Unknown

  

(% based on raw material)

Raw material

24.6 (3.0)

35.7

20.1

1.6

7.1

5.5

2.4

Prehydrolysate

8.3

0.43 (0.67)

0.17

1.8

0.87

1.6

2.8

Soda-AQ pulpa

17.3

41.8

Prehydrolysisb soda-AQ pulpa

9.6

31.1

0.9 (0.2)

22.4

4.1

0.4

3.1

Acacia prehydrolysis kraft pulpc

13.2

45.2

0.7 (0.4)

39.2

4.3

0.1

0.5

  1. aCooking temperature and time: 160 °C and 180 min, active alkali dosage: 20 %
  2. bPrehydrolysis temperature and time: 150 °C and 180 min
  3. cAcacia mearnsii: Ref. [13]