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. 2019 Apr 27;12:99. doi: 10.1186/s13068-019-1437-4

Fig. 12.

Fig. 12

Gray correlation assay between three wall polymer features (cellulose DP, hemicellulose X/A, and lignin G-monomer) and two factors (DY and CR) of biomass porosity in the raw materials and three optimal pretreated biomass residues of four pairs of Miscanthus samples. a Gray correlation assay between CR and three wall polymer features. b Gray correlation assay between DY and three wall polymer features (n = 32)