Figure 5.
Selected region of the HMBC spectrum of the lignin from papyrus rind that shows the correlations Hβ–C4ʹ in 4′–O–β linkages, A. The correlations for dihydrotricin (dhT) and tricin (T) are indicated. pCA: p-coumarates.
Selected region of the HMBC spectrum of the lignin from papyrus rind that shows the correlations Hβ–C4ʹ in 4′–O–β linkages, A. The correlations for dihydrotricin (dhT) and tricin (T) are indicated. pCA: p-coumarates.