Duration of treatment (min)

Chemical composition (%)

Cellulose

Hemi-cellulose

Lignin

0*

78.676

70.775

10.321

30

75.76

68.443

9.300

60

74.87

67.551

9.26

120

74.23

67.48

9.15

180

74.005

66.812

9.055