1. ppm, respectively. The chemical shifts of ?-D or ?-L configurations were in the range of 100-110 ppm, and the signals of ?-D or ?-L configuration were in the region of 90-100 ppm, and these rules can be used to determine their configurations;anomeric proton signals and carbon signals were,1998
2. In the same way, through the analysis of data and references [48-55], every residue (a-h) was identified, and the chemical shifts are list in Table 3. The order and position of the linkage between monosaccharide residues can be further inferred from HMBC. The HMBC spectrum (Fig. 2E) indicated that the C-1 of residue b (1-linked-?-D-Galp) was correlated with the H-4 of residue a (1,4-linked-?-L-Rhap), and simply expressed as b C1/H4 a. It was also observed that C-1 of residue a (1,4-linked-?-L-Rhap) was correlated with the H-6 of residue d (1,6-linked-?-D-Glcp) and H-4 of residue h;one monosaccharide sugar unit or polymers
3. Structural characterization, physicochemical properties and ?-glucosidase inhibitory activity of polysaccharide from the fruits of wax apple;B H Wang;Carbohyd. Polym,2019
4. Structural characterization of a galacturonic acid-rich polysaccharide from Ziziphus Jujuba cv. Muzao;X L Ji;Int. J. Biol. Macromol,2020
5. Fractionation of polysaccharides by gradient non-solvent precipitation: a review;X Hu;Trends Food Sci. Tech,2018