Table 3: Chemical shifts values of carbon atoms in D-galacturonic acid residues in the 13C NMR spectrum of PS-s (δ, ppm, D2O) and of [4, 5].

ResidueC-1C-2C-3C-4C-5C-6C-6–(OCH3)–OCH3

4)-α-D-GalpA-(1 of PS-s 101.968.972.179.273.4176.2172.254.4
4)-α-D-GalpA-(1 of apple pectin [5]100.769.469.879.472.2175.2
4)- -D-GalpA-(1 [4]103.472.474.378.376.0175.2