Table 1.
13C NMR Signals (Δ ppm) in the Spectrum of κ- and λo- carrageenans.
| Type of Carrageenan |
Monosaccharide Unit | 13C Signals (ppm.) | |||||
|---|---|---|---|---|---|---|---|
| C-1 | C-2 | C-3 | C-4 | C-5 | C-6 | ||
| κ [28] | G4S | 102.5 | 69.6 | 78.9 | 74.1 | 74.8 | 61.3 |
| κo [29] | 103.1 | 70.09 | 79.04 | 74.2 | 75.5 | 61.9 | |
| κ [28] | DA | 95.3 | 69.9 | 79.2 | 78.3 | 76.8 | 69.5 |
| κo [29] | 95.82 | 70.48 | 79.83 | 77.8 | 77.4 | 70.2 | |
| λ [28] | G2S | 103.4 | 77.4 | 75.8 | 64.2 | 74.2 | 61.3 |
| λo | 101.1, 102.5, 103.1, 104.0 | 78.7, 76.4 | 76.3 | 64.7 | 74.4, 74.2 | 60.4, 60.6 | |
| λ [28] | D2S,6S | 91.6 | 74.8 | 69.5 | 80.3 | 68.7 | 68.1 |
| λo | 91.6 | 75.1 | 69.6 | 80.4 | 68.9, 68.6 | 68.1 | |