Research Article

Regulation of Laminaria Polysaccharides with Different Degrees of Sulfation during the Growth of Calcium Oxalate Crystals and their Protective Effects on Renal Epithelial Cells

Table 3

Chemical shifts in 1H NMR and 13C NMR spectra of LP0 and SLP2 ().

SLPsSugar residueChemical shift (ppm)
H-1/C-1H-2/C-2H-3/C-3H-4/C-4H-5/C-5H-6/C-6

LP0(1 → 2,4)-β-D-Malp5.33/99.994.90/76.684.67/80.453.68/57.413.57/69.301.12/16.77
(1 → 6)-α-D-Malp5.30/99.603.96/74.553.58/70.363.62/60.713.20/62.671.10/16.65
(1 → 4)-α-D-Glcp5.15/95.753.51/71.513.78/72.693.37/72.854.11/71.713.82/60.45
(1 → 6)-β-D-Glcp4.59/100.273.35/76.543.70/78.703.89/79.843.91/73.333.87/71.17

SLP2(1 → 2,4)-β-D-Malp5.33/99.644.90/76.654.68/82.693.69/57.423.57/69.311.11/16.77
(1 → 6)-α-D- Malp5.34/99.604.22/74.553.58/70.323.62/60.723.20/63.031.10/16.65
(1 → 4)-α-D-Glcp5.15/95.753.56/71.463.78/72.673.36/72.854.11/71.653.82/60.46
(1 → 6)-β-D-Glcp4.57/100.103.34/76.203.70/76.853.89/79.753.91/73.333.84/71.14

Malp: maltose; Glcp: glucose.