HIGH RESOLUTION 13C NMR STUDY OF (1→3)-β-d-GLUCANS BY CROSS POLARIZATION/MAGIC ANGLE SPINNING: EVIDENCE OF CONFORMATIONAL HETEROGENEITY

Abstract
Conformation of various (1→3)-β-d-glucans in solid state was examined by 13C cross polarization/magic angle spinning NMR spectroscopy. It was found that high molecular-weight glucans adopt mainly helix form, whereas low molecular weight ones take considerable proportion of random-coil form in addition to the helix in solid.

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