Fig. 6

DDR poplar (Pop) solids composition compared to raw poplar. Following the same trend as was observed with just deacetylated poplar, the acetyl composition is minimal while the glucan, xylan, and lignin compositions remained consistent as deacetylation severity increased. Nearly all the acetyl was removed. X/Y/Z represents NaOH conc (g/kg)/residence time (min)/disc-refining gap (in.)