Table 5.
Total carbon (TC), total nitrogen (TN), ratio C/N and sulfur (S) (%) obtained in the total and acid polysaccharides extracted from autotrophic and heterotrophic cultures of T. suecica. The data represent the average ± standard deviation (n = 3). Different letters indicate significant differences among polysaccharide types (ANOVA, Tukey’s test, p < 0.05).
| Culture | Exopolysaccharide Type |
% TC | % TN | C/N | % S |
|---|---|---|---|---|---|
| Autotrophic | Total | 9.60 ± 0.10 c | 0.53 ± 0.01 d | 18.28 ± 0.17 a | 0.00 |
| Autotrophic | Acid | 9.02 ± 0.08 d | 0.71 ± 0.01 b | 12.75 ± 0.10 c | 0.00 |
| Heterotrophic | Total | 9.84 ± 0.07 b | 0.66 ± 0.02 c | 14.91 ± 0.10 b | 0.33 ± 0.08 b |
| Heterotrophic | Acid | 11.96 ± 0.09 a | 0.80 ± 0.01 a | 14.88 ± 0.12 b | 3.47 ± 0.10 a |