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Table 3 Composition of the solid fraction of pretreated sugar cane leaves in percentage of dry matter before enzymatic hydrolysis

From: An approach to the utilisation of CO2 as impregnating agent in steam pretreatment of sugar cane bagasse and leaves for ethanol production

Steam pretreatment conditions

Glucan

Xylan

Lignin

pH

190°C/5 min

39.2

19.7

35.0

4.5

210°C/5 min

40.7

7.4

33.8

4.0

220°C/5 min

53.7

2.2

37.9

3.5

190°C/5 min/SO2

52.3

8.7

33.6

2.0

190°C/5 min/CO2

39.2

19.2

30.0

4.5

200°C/5 min/CO2

43.6

16.7

29.2

4.5

210°C/5 min/CO2

50.9

9.7

35.0

4.0

220°C/5 min/CO2

52.7

4.2

41.5

3.5

220°C/5 min/CO2 (cut leaves)

53.8

2.9

37.8

3.5