Lignin Valorization Via Laccase-Assisted Functionalization

Title: Lignin Valorization Via Laccase-Assisted Functionalization

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Abstract

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 »« less

Authors:

Hashmi, Muzna ^[1]; Chandra, Richard P. ^[2];

^[3]

Quaid-i-Azam Univ., Islamabad (Pakistan). Dept. of Microbiology, Faculty of Biological Sciences
Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Wood Science
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:: 2016-10-19

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)

OSTI Identifier:: 1376582

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: BAOJ Chemistry

Additional Journal Information:: Journal Volume: 2; Journal Issue: 2; Journal ID: ISSN 9999-0012

Publisher:: BioAccent

Country of Publication:: United States

Language:: English

Subject:: 09 BIOMASS FUELS; enzymatic grafting; laccases; lignin functionalization; fibre modification

Citation Formats


                    Hashmi, Muzna, Chandra, Richard P., and Ragauskas, Arthur J. Lignin Valorization Via Laccase-Assisted Functionalization.  United States: N. p., 2016. 
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                    Hashmi, Muzna, Chandra, Richard P., & Ragauskas, Arthur J. Lignin Valorization Via Laccase-Assisted Functionalization.  United States.

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                    Hashmi, Muzna, Chandra, Richard P., and Ragauskas, Arthur J. Wed .  
        "Lignin Valorization Via Laccase-Assisted Functionalization".  United States.  https://www.osti.gov/servlets/purl/1376582.

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@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}

}

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