## Synopsis Chondroitin sulfate C (CSC) and acrdiine orange (AO) formed two types of complexes a t neutral pH, depending upon the order of mixing. The induced optical activity of AO was much more pronounced when the polysaccharide wm added to dye than the dye to polymer (final concentration of dye
Viscosity and optical activity of chondroitin sulfate C
β Scribed by Edward J. Eyring; Jen Tsi Yang
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1968
- Tongue
- English
- Weight
- 565 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0006-3525
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β¦ Synopsis
Chondroitin sulfate C (CSC), isolated from shark vertebral mucoprotein, has a molecular weight of 5.2 x lOe5.5 X lo4 in both NaCl and CaC12 solutions. Optical rotatory dispersion and circular dichroism of CSC reveal a strong, negative, optically active band near 210 mp, arising from the carboxylate and N-acetyl groups. Results of similar studies of glucuronic acid and N-acetyl-D-galactosamine suggest that the N-acetyl group contributes more to the rotations of CSC than does the carboxylate group, but the acidification of the carboxylate groups largely accounts for the change in magnitude and position of the circular dichroic bands of CSC a t low pH.
π SIMILAR VOLUMES
High molecular mass-chondroitin sulfate was characterized for M(r), charge density and constituent disaccharides. This glycosaminoglycan was depolymerized by a controlled free-radical process mediated by hydrogen peroxide in the absence or presence of cupric or ferrous ions. Hydrogen peroxide depoly