Table 1.
Chemical properties of crude polysaccharide (CCP-0) isolated from cold-brew coffee
| Chemical composition (%) | CCP-0 |
|---|---|
| Yield from instant coffee | 0.16% |
| Neutral sugar | 87.6±0.0 |
| Uronic acid | 12.4±0.0 |
| Protein | – |
| Kdo-like materials1) | – |
| Component sugar2) | Mole%3) |
| Rhamnose | 3.3±0.4 |
| Fucose | – |
| Arabinose | 11.9±1.9 |
| Xylose | – |
| Mannose | 15.7±0.3 |
| Galactose | 53.6±0.8 |
| Glucose | 3.0±0.2 |
| Galacturonic acid+glucuronic acid | 12.4±0.0 |
1)
2-Keto-3-deoxy-D-manno-octulosonic acid.
2)
Monosaccharides were analyzed using alditol acetates.
3)
Mole% was calculated from the detected total carbohydrate.