Table 1. 1H and 13C NMR Assignments of the MannanP.arca.
sugar residue |
1H/13C (ppm) 1JC1, H1 |
|||||
---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | |
A | 5.19 | 4.01 | 3.80 | 3.62 | 3.66 | 3.64–3.80 |
2-Manp | 101.8 | 79.8 | 71.5 | 68.1 | 74.4 | 62.3 |
175 | ||||||
B | 5.04 | 3.96 | 3.75 | 3.53 | 3.66 | 3.64–3.78 |
t-Manp | 103.5 | 71.3 | 71.6 | 68.2 | 74.5 | 62.4 |
176 | ||||||
C | 5.01 | 3.93 | 3.83 | 3.73 | 3.72 | 3.57–3.91 |
2,6-Manp | 99.4 | 80.0 | 71.4 | 67.8 | 72.1 | 66.9 |
180 | ||||||
D | 4.99 | 3.91 | 3.81 | 3.73 | 3.72 | 3.57–3.91 |
2,6-Manp | 99.4 | 80.0 | 71.5 | 67.8 | 72.1 | 66.9 |
180 | ||||||
E | 4.94 | 3.96 | 3.70 | 3.53 | 3.66 | 3.64–3.78 |
t-Manp | 103.4 | 71.3 | 71.7 | 68.1 | 74.4 | 62.4 |
174 | ||||||
F | 4.93 | 4.11 | 3.85 | 3.64 | 3.70 | 3.64–3.78 |
3-Manp | 103.5 | 70.9 | 79.2 | 67.6 | 72.5 | 62.4 |
174 | ||||||
G | 4.79 | 3.88 | 3.72 | 3.59 | 3.63 | 3.67–3.84 |
6-Manp | 100.6 | 71.3 | 72.1 | 68.1 | 72.1 | 66.7 |
172 | ||||||
H | 5.34 | 3.91 | 3.88 | 3.68 | n.d | n.d |
1-P Manp | 97.5 | 71.8 | 71.3 | 67.6 | ||
174 | ||||||
I | 4.36 | 3.17 | 3.45 | 3.69 | 3.67 | 3.64–3.78 |
t-Glcp | 102.9 | 74.0 | 74.9 | 71.8 | 77.5 | 62.4 |
163 |
Spectra were recorded in D2O at 298 K at 600 MHz using acetone as external standard (δH/δC 2.25/31.45 ppm).