Curdlan solution properties

Solution NMR Experiments with Curdlan. In an effort to correlate the solution properties of curdlan with features of molecular conformation, the influence of NaOD concentration was studied by NMR as shown in Figure 3. In 0.1 M NaOD, curdlan displayed relatively broad resonance peaks corresponding to the restricted molecular motion of the triplex. The spectrum recorded at 0.5 M NaOD, above the critical denaturation concentration of 0.2 M, showed considerably improved resolution typical of a random-coil molecular conft)rmation. Similar results were reported by Saito and Kasai 11, 13). 

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