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Official Journal of the Japan Wood Research Society

Table 2 The amount of enzyme adsorbed onto acacia and larch SP estimated using Py-GC/MS analysis and sulfur content of untreated SP

From: Effects of residual lignin and cellulose swelling on the rate of enzymatic saccharification of softwood and hardwood acid sulfite pulps

 

Acacia SP

Larch SP

Kappa number

52.3

74.6

Lignin content (%)

9.9

16.0

Resolution ratio of pulp after enzymatic treatment (%)

46.7

69.3

Lignin content (% on residue)

17

27

(% on untreated pulp)

9

8

The amount of enzyme adsorbed onto pulp (FPU/g residue)

10

9

(FPU/g untreated pulp)

6

3

The amount of enzyme adsorbed onto lignin (FPU/g lignin in residue)

61

35

Sulfur content (ÎĽmol/g pulp)

79.4

164

(ÎĽmol/g lignin)

802

1020

  1. Enzymatic treatment: pulp 0.5 g, acetate buffer 0.05 M, pH 4.5 and 15 mL and temperature at 45 °C