Spectrofluorimetric Analysis of Synthetic and isolated lignin from Omorika

Abstract

Lignin is the one of the main constituitive polymers of the plant cell wall that protect plant cell from different kond of stress. Lignin precursors, the plenolic alcohols, belong to the group of phenylpropanoid compounds. Fluorescence spectroscopy is a sensitive tool for structural and kinetic studies of macromolecule. Fluorescence is an intrinsic property of lignin. We compare fluorescence data from sintetic lignin and lignin isolated from the neeedles of coniferous tree omorika. Mathematical analysis as well as comparison of the excitation and emission spectra show that fluorescence emission spectra of lignin and lignin model-compounds originate from the distrinct fluorophores.