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. 2019 Apr 17;7:246. doi: 10.3389/fchem.2019.00246

Figure 4.

Figure 4

HSQC NMR signal intensities of different lignin C-H units relative to 100 G2 + G2,cond units, obtained for enzymatic mild acidolysis lignin (EMAL) isolated from sugarcane bagasse and for lignins isolated from four agricultural feedstocks with [TEA][HSO4] with 20 wt% water and a biomass to solvent ratio of 1:10 g/g.