The high-molecular water-soluble mucilage fractions from stems and roots of Paracynoglossum imeretinum (Boraginaceae family) were isolated. However, on the basis of data from IR, 1H NMR, gCOSY, gHSQCED and 2D DOSYĮxperiments, the presence of methylated PDPGA in HMP-SG was sustained by analogy with high molecular Unfortunately, it proved not feasible to separate the phenolic polymer from residual polysaccharides by Similar molecular weight for the phenolic polyether and the polysaccharides. It means that they have the same diffusion coefficient. Of HMP-SG showed that both sets of signals of methylated in carboxylic group PDPGA and polysaccharidesįell in the same horizontal. Spectrum of HMP-SG due to the presence of residual polysaccharide impurities. Besides, the additional signals might have appeared in the gHSQCED italica, most of the carboxylic groups of PDPGA from 2D 1H/ġ3C gHSQCED spectrum of HMP-SG exhibited that in contrast to polymers of other species of Symphytum,Īnd likewise some polymer preparations from A. caucasicum, S.officinale and Anchusa italica high-molecular weight preparations.

High-molecular preparation of Symphytum grandiflorum DC (HMP-SG) by analogy with S.Īsperum, S.

According to data of IR, 1H NMR, gCOSY and 2D 1H/13C gHSQCED experiments caffeicĪcid-derived polymer, namely poly (PDPGA) was detected in watersoluble