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Title: Lignin Valorization Via Laccase-Assisted Functionalization

With the diminishing supply of the world’s petroleum reserves and increasing environmental concerns, a heightened focus has been placed upon developing bio refineries to sustainably convert lignocellulosics to fuels, chemicals and materials. Furthermore, woody biomass represents a promising bio resource due to its abundance, renewability, and biodegradability. Lignin is an irregular polyphenolic macromolecule that typically constitutes ~15-35% of woody biomass. The pulp and paper industry produces lignin on the scale of millions of tons each year as a by-product of the pulping process. Traditionally, lignin has been viewed as a waste material that is combusted in the pulping process. But, in recent decades, there have been increased efforts devoted towards the conversion of lignin into value-added commodities, such as bio fuels, biomaterials, and bio-based chemicals. The valorization of lignin can be regarded as a necessary step for the development of lignocellulosic-based integrated bio refineries. Owing to the phenolic structure of lignin, it is possible to enzymatically graft molecules onto its surface using laccases (benzenediol: oxygen oxidoreductases, EC 1.10.3.2) to create exciting novel biomaterials. These environmentally friendly enzymes use oxygen as their only co-substrate and produce water as their sole by-product, and as a result have found compelling industrial applications. Thismore » mini-review highlights recent advances in the field of laccase-facilitated functionalization of lignin as well as promising future directions for lignin-based polymers.« less
Authors:
 [1] ;  [2] ; ORCiD logo [3]
  1. Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. of Microbiology, Faculty of Biological Sciences
  2. Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Wood Science
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering, Dept. of Forestry, Wildlife and Fisheries, Center of Renewable Carbon; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Inst. for Biological Sciences, Biosciences Division
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
BAOJ Chemistry
Additional Journal Information:
Journal Volume: 2; Journal Issue: 2; Journal ID: ISSN 9999-0012
Publisher:
BioAccent
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; enzymatic grafting; laccases; lignin functionalization; fibre modification
OSTI Identifier:
1376582

Hashmi, Muzna, Chandra, Richard P., and Ragauskas, Arthur J.. Lignin Valorization Via Laccase-Assisted Functionalization. United States: N. p., Web.
Hashmi, Muzna, Chandra, Richard P., & Ragauskas, Arthur J.. Lignin Valorization Via Laccase-Assisted Functionalization. United States.
Hashmi, Muzna, Chandra, Richard P., and Ragauskas, Arthur J.. 2016. "Lignin Valorization Via Laccase-Assisted Functionalization". United States. doi:. https://www.osti.gov/servlets/purl/1376582.
@article{osti_1376582,
title = {Lignin Valorization Via Laccase-Assisted Functionalization},
author = {Hashmi, Muzna and Chandra, Richard P. and Ragauskas, Arthur J.},
abstractNote = {With the diminishing supply of the world’s petroleum reserves and increasing environmental concerns, a heightened focus has been placed upon developing bio refineries to sustainably convert lignocellulosics to fuels, chemicals and materials. Furthermore, woody biomass represents a promising bio resource due to its abundance, renewability, and biodegradability. Lignin is an irregular polyphenolic macromolecule that typically constitutes ~15-35% of woody biomass. The pulp and paper industry produces lignin on the scale of millions of tons each year as a by-product of the pulping process. Traditionally, lignin has been viewed as a waste material that is combusted in the pulping process. But, in recent decades, there have been increased efforts devoted towards the conversion of lignin into value-added commodities, such as bio fuels, biomaterials, and bio-based chemicals. The valorization of lignin can be regarded as a necessary step for the development of lignocellulosic-based integrated bio refineries. Owing to the phenolic structure of lignin, it is possible to enzymatically graft molecules onto its surface using laccases (benzenediol: oxygen oxidoreductases, EC 1.10.3.2) to create exciting novel biomaterials. These environmentally friendly enzymes use oxygen as their only co-substrate and produce water as their sole by-product, and as a result have found compelling industrial applications. This mini-review highlights recent advances in the field of laccase-facilitated functionalization of lignin as well as promising future directions for lignin-based polymers.},
doi = {},
journal = {BAOJ Chemistry},
number = 2,
volume = 2,
place = {United States},
year = {2016},
month = {10}
}