Table 2 Monosaccharide concentrations in the spruce hydrolysate before and after cultivation
From: Comparison of methods for detoxification of spruce hydrolysate for bacterial cellulose production
A. Prior to cultivation of G. xylinus | ||||||
|---|---|---|---|---|---|---|
No. | Treatment | Glucose (g/L) | Mannose (g/L) | Xylose (g/L) | Galactose (g/L) | Arabinose (g/L) |
1 | Activated charcoal | 18.7 ± 0.2 | 4.1 ± 0.3 | 3.3 ± 0.4 | 0.9 ± 0.1 | 0.6 ± 0.1 |
2 | NaOH | 17.1 ± 0.4 | 4.1 ± 0.3 | 3.3 ± 0.3 | 0.8 ± 0.1 | 0.6 ± 0.1 |
3 | Ca(OH)2 | 16.9 ± 0.8 | 4.0 ± 0.3 | 3.2 ± 0.2 | 0.9 ± 0.1 | 0.6 ± 0.1 |
4 | NH4OH | 17.5 ± 0.7 | 4.0 ± 0.2 | 3.3 ± 0.3 | 0.9 ± 0.1 | 0.6 ± 0.1 |
5 | Anion exchanger, pH 10 | 15.1 ± 0.8 | 3.2 ± 0.6 | 2.6 ± 0.6 | 0.7 ± 0.1 | 0.4 ± 0.1 |
6 | Anion exchanger, pH 5.5 | 16.0 ± 0.9 | 3.6 ± 0.5 | 3.0 ± 0.5 | 0.7 ± 0.1 | 0.5 ± 0.1 |
7 | Cation exchanger, pH 10 | 16.2 ± 0.9 | 3.8 ± 0.3 | 3.1 ± 0.3 | 0.8 ± 0.1 | 0.5 ± 0.1 |
8 | Cation exchanger, pH 5.5 | 16.8 ± 0.7 | 3.9 ± 0.4 | 3.3 ± 0.5 | 0.9 ± 0.1 | 0.5 ± 0.1 |
9 | Sodium sulfite | 17.7 ± 0.2 | 3.7 ± 0.5 | 3.2 ± 0.4 | 0.8 ± 0.1 | 0.5 ± 0.1 |
10 | Sodium dithionite | 17.5 ± 0.1 | 3.9 ± 0.4 | 3.3 ± 0.5 | 0.8 ± 0.1 | 0.6 ± 0.1 |
11 | Untreated | 17.1 ±0.3 | 3.9 ± 0.2 | 3.3 ± 0.2 | 0.8 ± 0.1 | 0.6 ± 0.2 |
12 | Reference | 18.8 ± 0.1 | 4.1 ± 0.1 | 3.1 ± 0.1 | 0.8 ± 0.1 | 0.6 ± 0.1 |
B. After cultivation of G. xylinus | ||||||
No. | Treatment | Glucose (g/L) | Mannose (g/L) | Xylose (g/L) | Galactose (g/L) | Arabinose (g/L) |
1 | Activated charcoal | 0.1 ± 0.1 | 2.5 ± 0.3 | 2.2 ± 0.1 | 0.7 ± 0.1 | 0.5 ± 0.1 |
2 | NaOH | 19.1 ± 0.6 | 3.6 ± 0.3 | 3.1 ± 0.3 | 0.8 ± 0.1 | 0.6 ± 0.1 |
3 | Ca(OH)2 | 17.8 ± 0.4 | 3.9 ± 0.2 | 3.3 ± 0.3 | 0.8 ± 0.1 | 0.5 ± 0.1 |
4 | NH4OH | 18.9 ± 0.2 | 3.6 ± 0.1 | 3.1 ± 0.1 | 0.8 ± 0.1 | 0.5 ± 0.1 |
5 | Anion exchanger, pH 10 | 0.3 ± 0.1 | 2.3 ± 0.1 | 2.1 ± 0.1 | 0.7 ± 0.1 | 0.4 ± 0.1 |
6 | Anion exchanger, pH 5.5 | 0.8 ± 0.3 | 2.5 ± 0.1 | 2.4 ± 0.1 | 0.7 ± 0.1 | 0.4 ± 0.1 |
7 | Cation exchanger, pH 10 | 19.0 ± 0.6 | 2.4 ± 0.3 | 2.3 ± 0.4 | 0.7 ± 0.1 | 0.5 ± 0.1 |
8 | Cation exchanger, pH 5.5 | 21.8 ± 0.3 | 3.3 ± 0.1 | 3.2 ± 0.1 | 0.8 ± 0.1 | 0.6 ± 0.1 |
9 | Sodium sulfite | 20.7 ± 1.2 | 3.6 ± 0.1 | 3.1 ± 0.4 | 0.8 ± 0.1 | 0.5 ± 0.1 |
10 | Sodium dithionite | 21.8 ± 0.4 | 3.9 ± 0.1 | 3.7 ± 0.1 | 0.9 ± 0.1 | 0.5 ± 0.1 |
11 | Untreated | 21.4 ± 0.6 | 4.0 ± 0.3 | 3.3 ± 0.2 | 0.8 ± 0.2 | 0.6 ± 0.1 |
12 | Reference | 0.1 ± 0.1 | 2.6 ± 0.1 | 1.9 ± 0.1 | 0.8 ± 0.1 | 0.5 ± 0.1 |