Table 2.
Compositions of sugar units of standard substances (monosaccharide and disaccharides) estimated from 1 H- 13 C HSQC spectra.
| Glucose | Trehalose | Neo-trehalose | Kojibiose | Nigerose | Maltose | Iso-maltose | |
|---|---|---|---|---|---|---|---|
| α Glcp , αGlcp-(X)-α Glcp | 0.34 | - | - | - | 0.17 | 0.18 | 0.15 |
| β Glcp , αGlcp-(X)-β Glcp | 0.66 | - | - | - | 0.33 | 0.32 | 0.35 |
| αGlcp-(1,2)-α Glcp | - | - | - | 0.20 | - | - | - |
| αGlcp-(1,2)-β Glcp | - | - | - | 0.30 | - | - | - |
| αGlcp-(1,1)-α Glcp | - | 1.00 | - | - | - | - | - |
| βGlcp-(1,1)-α Glcp | - | - | 0.47 | - | - | - | - |
| αGlcp-(1,1)-β Glcp | - | - | 0.53 | - | - | - | - |
| α Glcp -(1,2)-αGlcp, αGlcp-(X)-α Glcp -(1,2)-αGlcp | - | - | - | 0.22 | - | - | - |
| α Glcp -(1,2)-βGlcp, αGlcp-(X)-α Glcp -(1,2)-βGlcp | - | - | - | 0.28 | - | - | - |
| α Glcp -(1,3)-Y, αGlcp-(X)-α Glcp -(1,3)-Y | - | - | - | - | 0.50 | - | - |
| α Glcp -(1,4)-Y, αGlcp-(X)-α Glcp -(1,4)-Y | - | - | - | - | - | 0.50 | - |
| α Glcp -(1,6)-Y, αGlcp-(X)-α Glcp -(1,6)-Y | - | - | - | - | - | - | 0.50 |
X represents 1,3, 1,4, or 1,6. Y represents αGlcp or βGlcp. Glucopyranoside for which signal assignment is derived from its anomeric protons and carbons are underlined.