Comment 15: l. 169-170: “thirty” instead of “thirteen”?
Chemical shift similarity is not sufficient to identify monosaccharide and linkage in a polysaccharide repeating unit. The evidences for the partial structure given are not convincing. If the authors do not add methylation analysis and perform full NMR spectral analysis, the claims about structure determination should be removed from the manuscript. They deleted erroneous information about mannose residues, but came up with new conclusions about mannose identity and linkages based solely on chemical shift of anomeric proton/carbon.The information contained in the other 2D spectra was not exploited to provide structural information.