Incorporation of [2-13C]ferulic acid, a lignin precursor, into Leucaena leucocephala and its analysis by solid state 13C n.m.r. spectroscopy

Solid state 13C n.m.r. analysis of lignin in situ, in the root tissue of the woody angiosperm, Leucaena leucocephala, and specifically labelled at a carbon site thought to be involved in the majority of inter-unit linkages, revealed significant bonding differences when compared to an artificial lignin preparation generally viewed more or less to represent native lignin structure.