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A polysaccharide fraction containing acidic galactan (AG) was obtained from eggs of the mollusc Pomacea lineata by precipitation with acetone. Its structure was investigated using a combination of chemical analysis, intrinsic viscosity and NMR spectroscopy methods, including 1D and 2D, COSY, TOCSY and HSQC experiments. The chemistry analysis showed that the acidic galactan did not possess neither...