Fig. 4
From: Lignin-polysaccharide interactions in plant secondary cell walls revealed by solid-state NMR
DNP reveals the conformational selectivity of xylan for lignin-binding. a DNP enhances the NMR sensitivity by 23-fold on maize. The inset shows a representative DNP sample. b Lignin-edited (top) and control (bottom) 13C–13C correlation spectra measured using DNP. The lignin-edited spectrum only shows polysaccharides spatially proximal to lignin, including three-fold and a subset of two-fold xylan (type b and c) and surface cellulose (s)
