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Table 1 Composition of unextracted, raw sugarcane leaf 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

51.5 ± 2.1

55.9 ± 6.3

56.3 ± 5.2

54.2 ± 3.7

48.7 ± 1.2

46.3 ± 2.9

53.4 ± 3.6

Glucan

16.7 ± 0.9

22.3 ± 4.2

23.7 ± 3.5

22.5 ± 1.7

18.3 ± 0.9

17.9 ± 1.7

19.3 ± 2.6

Xylan

12.7 ± 0.7

17.2 ± 2.6

17.1 ± 2.1

15.5 ± 1.1

13.9 ± 0.3

12.9 ± 0.4

16.1 ± 1.8

AIL

19.1 ± 2.2

13.1 ± 1

12.2 ± 0.8

13 ± 1

13.5 ± 0.4

12.7 ± 0.5

15.1 ± 1.2

ASL

2.9 ± 0.3

3.3 ± 0.5

3.4 ± 0.4

3.2 ± 0.1

2.8 ± 0.1

2.8 ± 0.6

2.9 ± 0.2

Total sugara

6.3 ± 1.7

4 ± 0.8

3.6 ± 0.5

3.9 ± 0.5

3.4 ± 0.6

4.2 ± 0.1

4 ± 1

Sucrose

4.3 ± 1.5

2.4 ± 0.7

1.6 ± 0.3

2.4 ± 0.6

2 ± 0.6

2.8 ± 0.1

2 ± 0.2

Glucose

0.97 ± 0.18

0.78 ± 0.13

1.0 ± 0.07

0.80 ± 0.08

0.66 ± 0.03

0.71 ± 0.15

0.83 ± 0.30

Fructose

1.0 ± 0.07

0.77 ± 0.07

0.97 ± 0.17

0.73 ± 0.02

0.71 ± 0.03

0.73 ± 0.06

1.2 ± 0.83

CA

1.6 ± 0.1

1.4 ± 0

1.4 ± 0

1.2 ± 0.1

1.4 ± 0.1

1.5 ± 0.1

1.6 ± 0.1

FA

0.95 ± 0.07

1.17 ± 0.05

1.06 ± 0.05

0.89 ± 0.1

0.99 ± 0.03

0.94 ± 0.02

0.76 ± 0.11

Ash

3.7 ± 0.4

3.1 ± 0.2

6.1 ± 0.9

3.8 ± 0.3

5.6 ± 0.6

3.8 ± 0.2

2.9 ± 0.2

MLG

0.53 ± 0.03

0.6 ± 0.08

0.68 ± 0.07

0.69 ± 0.07

0.32 ± 0.04

0.66 ± 0.09

0.47 ± 0.02

Cellulose CrIb

40

–

–

–

42

44

–

  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 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