@Article{jrm.2021.016811,
AUTHOR = {Meifeng Wang, Wubliker Dessie, Hui Li},
TITLE = {Chemically Modified Lignin: Correlation between Structure and Biodegradability},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {9},
YEAR = {2021},
NUMBER = {12},
PAGES = {2119--2128},
URL = {http://www.techscience.com/jrm/v9n12/42983},
ISSN = {2164-6341},
ABSTRACT = {Lignin is the most abundant heteropolymer based on aromatic subunits in nature. Large quantities of lignin are
annually produced from pulping processes and biorefinery industries. Its unclearly defined structure and difficult
biodegradation mainly limit its utilization. This work focused on the effect of hydroxylation of lignin on its microbial degradation. Butyloxy carbonyl-modified lignin, and hydroxylated-lignin were synthesized with di-tert-butyl
dicarbonate and hydrogen peroxide, respectively, using lignin as raw material. The degradation of the modifiedlignins both by <i>P. chrysosporium</i> and <i>B. subtilis </i>were analyzed using UV-vis spectroscopy. Results revealed that
the lignin degradation velocity raises with the increase hydroxylation level of lignin. Moreover, FTIR and 1H
NMR analysis of the biodegradation products of lignin further indicated that higher content of hydroxyl groups
in lignin facilitated the demethylation combined with the aromatic ring cracking in the presence of fungus and
bacteria.},
DOI = {10.32604/jrm.2021.016811}
}