This work presents the characterization of the milled wood lignin (MWL) of the Pinus oocarpa cultivated in the Brazilian cerrado. FTIR, carbon-13 and proton NMR spectroscopies as well as wet chemical methods were used. The established C9 unit formula for MWL was C9H9,2O2,6(OCH 3)0,8 and its relative molecular weights (Mw) and (Mn) were 3969 and 1133 Da, respectively. Pinus oocarpa MWL was typical of softwood lignins.
Pinus oocarpa; lignin; milled wood lignin
