Research Article
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% |
|
|