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Official Journal of the Japan Wood Research Society

Table 1 Yields of S and G thioacidolysis monomers (μmol/g of pretreated woods) obtained after pretreatments at two different scales

From: Effect of thermochemical pretreatment on lignin alteration and cell wall microstructural degradation in Eucalyptus globulus: comparison of acid, alkali, and water pretreatments

Pretreatment

10 mg wood tissue with 20 ml reaction solution

21 g milled wood with 700 ml reaction solution

0.05 % (w/v)

3 % (w/v)

(μmol/g)

(μmol/g)

S

G

S + G

S:G

Preferential decrease

S

G

S + G

S:G

Preferential decrease

Untreated

624.3

183.3

825.6

78:22

448.1

101.6

549.7

82:18

1.0 % H2SO4

36.2

19.2

55.4

65:35

S

74.4

25.6

100.0

74:26

S

Hot water

16.1

5.4

21.4

75:25

S and G

54.2

12.4

66.7

81:19

S and G

0.5 % NaOH

tr

tr

tr

S

36.6

14.6

51.2

71:29

S

  1. tr trace