Figure 4
From: Facile isolation and analysis of sporopollenin exine from bee pollen
13C CP-MAS NMR spectra of sunflower (mark A, red curve) and rape (mark B, blue curve) sporopollenins treated by TBPH. The integral intensities of j, k aromatic carbon signals of p-coumaric groups and g, h O-aliphatic peaks were compared to each other.
