Fig. 6From: Chemical and structural changes associated with Cu-catalyzed alkaline-oxidative delignification of hybrid poplarPartial 2D HSQC NMR spectra of a whole cell wall untreated poplar, b solubilized lignin, and c residual poplar cell walls following Cu-catalyzed AHP pretreatment. Contours are colored to match the structures for aromatic components.Back to article page