Table 3.
Distribution of the molecular weights and abundance of the monomeric composition (% over total carbohydrates) obtained by gas chromatography with flame ionization detection (GC-FID) after the hydrolysis with trifluoroacetic acid (TFA) of the extractions was carried out at different temperatures and solvent compositions.
| Temp. | Solvent | Molecular weights of the carbohydrate fractions | ||||||
| >805 kDa | 804–89 kDa | 89–24 kDa | 24–5 kDa | 5–1 kDa | 1-0.4 kDa | 0.39–<0.342 kDa | ||
| 40 ˚C | 0% EtOH | >805 (18%) | 696 (14%) | 52.5 (8%) | 8.4 (8%) | 3.8 (19%) | 0.5 (4%) | <0.342 (29%) |
| 50% EtOH | >805 (4%) | 483.1 (8%) | 24.3 (5%) | 7.5 (12%) | 3.7 (24%) | 0.9 (9%) | <0.342 (38%) | |
| 100% EtOH | >805 (21%) | - | - | - | 2 (24%) | - | <0.342 (55%) | |
| 110 ˚C | 0% EtOH | >805 (9%) | 651.3 (32%) | - | 8.1 (17%) | 3.8 (25%) | 0.4 (8%) | <0.342 (7%) |
| 50% EtOH | >805 (15%) | 505.6 (11%) | 22.8 (9%) | 8.2 (12%) | 3.8 (16%) | 0.8 (12%) | <0.342 (25%) | |
| 100% EtOH | >805 (49%) | - | - | - | 4.5 (19%) | 0.6 (32%) | - | |
| 180 ˚C | 0% EtOH | >805 (11%) | - | 26.1 (10%) | 8.1 (35%) | 3.2 (35%) | - | <0.342 (9%) |
| 50% EtOH | >805 (14%) | 585.2 (5%) | 17.3 (16%) | 8.1 (19%) | 3.2 (30%) | - | <0.342 (16%) | |
| 100% EtOH | >805 (36%) | - | - | 5.2 (9%) | 3 (21%) | 0.5 (12%) | <0.342 (22%) | |