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Table 5 Arabinose and ethanol yields from pretreated samples following fermentation

From: What cell wall components are the best indicators for Miscanthus digestibility and conversion to ethanol following variable pretreatments?

Miscanthus accession

Mild water

Severe water

Acid

Alkali

Accession mean

Arabinose yields ± standard deviation (mg g−1 dry solids)

 High 1

21.0 ± 2.7

b

25.8 ± 1.4

b

33.4 ± 6.8

a

55.6 ± 3.5

c

34.0

 High 2

14.1 ± 3.4

ab

24.3 ± 6.3

ab

35.6 ± 2.3

a

37.8 ± 2.8

abc

27.9

 High 3

15.0 ± 2.7

ab

19.5 ± 1.4

ab

33.5 ± 5.5

a

43.4 ± 9.3

bc

27.9

 Medium 1

13.8 ± 0.9

ab

17.5 ± 0.3

ab

27.5 ± 2.3

a

34.2 ± 2.3

ab

23.2

 Medium 2

14.7 ± 1.1

ab

17.9 ± 0.2

ab

29.0 ± 2.9

a

34.4 ± 3.1

ab

24.0

 Medium 3

13.0 ± 2.1

a

17.0 ± 0.8

ab

27.6 ± 1.9

a

33.6 ± 2.5

ab

22.8

 Low 1

12.9 ± 0.4

a

16.1 ± 1.3

a

26.1 ± 2.5

a

29.3 ± 1.4

ab

21.1

 Low 2

13.7 ± 0.2

ab

15.8 ± 1.0

a

21.0 ± 1.7

a

19.9 ± 7.5

a

17.6

 Low 3

16.2 ± 0.9

ab

20.6 ± 0.8

ab

30.8 ± 6.6

a

46.0 ± 3.7

bc

28.4

Ethanol yields ± standard deviation (μL g−1 dry solids)

 High 1

64.9 ± 3.2

d

46.1 ± 9.2

ab

105.0 ± 5.3

g

101.7 ± 0.7

abc

79.4

 High 2

36.7 ± 4.9

c

77.8 ± 6.9

a

55.7 ± 4.0

de

151.4 ± 9.6

d

80.4

 High 3

27.9 ± 0.4

abc

28.2 ± 0.6

c

74.0 ± 2.4

f

93.6 ± 5.3

ab

56.0

 Medium 1

17.5 ± 2.1

a

45.0 ± 3.0

ab

36.6 ± 2.9

bc

119.3 ± 10.6

c

54.6

 Medium 2

14.9 ± 1.5

a

50.9 ± 3.8

b

44.3 ± 2.7

cd

121.9 ± 7.7

c

58.0

 Medium 3

19.0 ± 9.9

ab

49.5 ± 7.4

b

37.0 ± 3.5

bc

114.3 ± 2.3

bc

54.9

 Low 1

14.1 ± 0.5

a

35.1 ± 3.4

ab

28.3 ± 0.7

ab

99.0 ± 1.7

abc

44.1

 Low 2

12.4 ± 4.2

a

36.8 ± 5.0

ab

21.7 ± 1.6

a

103.2 ± 1.5

abc

43.5

 Low 3

34.9 ± 2.5

bc

30.8 ± 3.2

ab

57.3 ± 1.8

e

85.8 ± 6.6

a

52.2

  1. All values reported (mg and μL g−1 dry solids, respectively) significant differences as identified by Tukey HSD multiple comparison analysis (different lower case letters denote significant differences between treatments)
  2. n = 2 (accession means n = 8)
  3.  ± = standard deviation