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Table 2 Composition of unextracted, raw sugarcane culm tissues (% dry matter, DM)

From: Relationship between sugarcane culm and leaf biomass composition and saccharification efficiency

Genotype

FIJI_62

MQ239

Q124

Q208

QBN13-10020

SRA1

SRA5

Total fibera

25.3 ± 2.0

30 ± 4.5

21.9 ± 1.9

27.3 ± 5.9

40.5 ± 3.1

25.7 ± 4.1

35.1 ± 5.7

Glucan

10.2 ± 0.6

11.1 ± 2.8

8.6 ± 1

10.8 ± 2.8

16 ± 1.7

10.4 ± 1.9

14.8 ± 3.5

Xylan

7.4 ± 0.7

8.0 ± 1.4

6.0 ± 0.7

7.4 ± 1.9

11.1 ± 1.1

7.3 ± 1.2

9.7 ± 1.9

AIL

6.7 ± 0.5

9.6 ± 0.3

6.2 ± 0.2

8.0 ± 1

11.4 ± 0.1

6.7 ± 0.9

9.0 ± 0.4

ASL

1.0 ± 0.2

1.2 ± 0.3

1.1 ± 0.1

1.2 ± 0.3

2.0 ± 0.3

1.2 ± 0.2

1.6 ± 0.4

Total sugara

47.1 ± 1.3

37.9 ± 3.1

49.9 ± 4.4

55.5 ± 2

28.6 ± 2.8

52.1 ± 4.5

34.3 ± 0.8

Sucrose

38.4 ± 2.5

30.9 ± 4.4

41.4 ± 2.7

51.7 ± 2.1

23.6 ± 2.8

45.2 ± 5.8

29.6 ± 0.9

Glucose

5.2 ± 0.8

3.9 ± 0.8

5.7 ± 1.7

2.5 ± 0.8

3 ± 0.3

4 ± 1.1

2.8 ± 0.7

Fructose

3.6 ± 0.5

3.0 ± 0.6

2.8 ± 0.5

1.8 ± 0.2

2.0 ± 0.1

2.8 ± 0.4

1.9 ± 0.4

CA

2.5 ± 0.2

2.3 ± 0.1

2.9 ± 0.2

2.6 ± 0.2

2.7 ± 0.2

3.0 ± 0.6

2.8 ± 0.4

FA

0.61 ± 0.05

0.62 ± 0.04

0.78 ± 0.05

0.64 ± 0.03

0.76 ± 0.02

0.73 ± 0.12

0.61 ± 0.03

Ash

1.3 ± 0.1

0.74 ± 0.2

1.1 ± 0.1

1.0 ± 0.3

1.8 ± 0.2

1.2 ± 0.1

1.1 ± 0.2

MLG

0.49 ± 0.06

0.36 ± 0.07

0.33 ± 0.05

0.40 ± 0.04

0.27 ± 0.05

0.71 ± 0.11

0.47 ± 0.04

Cellulose CrIb

39

45

46

42

44

41

47

  1. Means ± standard deviation; percentage of fiber components (glucan, xylan, AIL and ASL) based on their original amount in unextracted biomass calculated from alcohol-insoluble residue (AIR) amounts (i.e. (% component in AIR/100) × (100 − % extractives)
  2. AIL: acid-insoluble lignin, ASL: acid-soluble lignin, CA: p-coumaric acid, FA: ferulic acid, MLG: mixed linkage β-d-glucan
  3. aTotal fiber = glucan + xylan + AIL + ASL; total sugar = sucrose + glucose + fructose
  4. bCrystallinity index (CrI) of cellulose determined by X-ray diffraction performed on subset of 10 samples