A Study on the Valorization of Rice Straw into Different Value-Added Products and Biofuels

Table 10

Fermentation performance of different yeast strains on the obtained rice straw hydrolyzate.

Rhamnose (g/L)

Xylose (g/L)

Arabinose (g/L)

Fructose (g/L)

Mannose (g/L)

Glucose (g/L)

Galactose (g/L)

Sucrose (g/L)

Maltose (g/L)

Lactose (g/L)

Total sugars (g/L)

TRS (g/L)

Produced bioethanol (g/L)

Bioethanol productivity (g/L/h)

Bioethanol yield (g/g sugars)

Theoretical yield (%)

Fermentation efficiency (%)

Rice straw hydrolyzate

2.5 ± 0.5

3.97 ± 0.5

4.69 ± 0.5

2.63 ± 0.5

5.35 ± 0.5

6.45 ± 0.5

1.1 ± 0.5

3.55 ± 0.5

1.25 ± 0.5

2.44 ± 0.5

33.93 ± 2

28.29 ± 2

—

—

—

—

—

C. tropicalis DSM 70156

1.00 ± 0.5

0.61 ± 0.5

ND

1.38 ± 0.5

ND

ND

ND

0.64 ± 0.5

0.47 ± 0.5

0.44 ± 0.5

4.54 ± 2

12.84 ± 2

10.5 ± 2

0.22 ± 0.6

0.36 ± 0.6

52.65 ± 2

48.35 ± 2%

C. shehatae ATCC 58779

2.00 ± 0.5

0.43 ± 0.5

ND

0.19 ± 0.5

ND

ND

ND

0.33 ± 0.5

0.65 ± 0.5

0.40 ± 0.5

4.00 ± 2

12.7 ± 2

11.13 ± 2

0.23 ± 0.6

0.37 ± 0.6

55.80 ± 2

51.25 ± 2%

S. cerevisiaeATCC 64712

ND

0.90 ± 0.5

1.91 ± 0.5

0.13 ± 0.5

0.6

ND

0.54

ND

0.59 ± 0.5

0.5 ± 0.5

5.17 ± 2

13.12 ± 2

11.04 ± 2

0.23 ± 0.6

0.38 ± 0.6

55.35 ± 2

50.84 ± 2%