Pseudo-lignin Formation during Dilute Acid Pretreatment for Cellulosic Ethanol

Meng, Xianzhi; Ragauskas, Arthur J.

doi:10.19080/RAPSCI.2017.01.555551

Title: Pseudo-lignin Formation during Dilute Acid Pretreatment for Cellulosic Ethanol

Abstract

Dilute acid-based pretreatment represents one of the most important pretreatment technologies to reduce biomass recalcitrance and it has been successfully applied to a wide range of feedstocks. During this type of pretreatment, the relative lignin content usually increases partially due to the loss of carbohydrates. More importantly, it has been reported that the increase of lignin content after dilute acid pretreatment is mainly due to the formation of pseudo-lignin. Furthermore, the exact reaction mechanisms leading to the formation of pseudo-lignin is still under investigation. However, it has been proposed that rearrangement of hydroxymethylfurfural (HMF) or furfural can produce aromatic type of compounds which can further undergo polymerization reactions to from a lignin-like polyphenolic structures termed as pseudo-lignin. Likewise, this mini-review mainly covers recent advances in understanding the fundamentals of pseudo-lignin formation during dilute acid pretreatment, the impact of its formation on enzymatic hydrolysis, and how to suppress its formation during dilute acid pretreatment.

Authors:

Meng, Xianzhi ^[1];

^[2]

Univ. of Tennessee, Knoxville, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Mon Apr 17 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Biological and Environmental Research (BER)

OSTI Identifier:: 1376592

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Recent Advances in Petrochemical Science

Additional Journal Information:: Journal Volume: 1; Journal Issue: 1; Journal ID: ISSN 2575-8578

Publisher:: Juniper Publishers

Country of Publication:: United States

Language:: English

Subject:: 09 BIOMASS FUELS; biomass recalcitrance; pseudo-lignin; dilute acid pretreatment; enzymatic hydrolysis; hydroxymethylfurfural; furfural

Citation Formats


                    Meng, Xianzhi, and Ragauskas, Arthur J. Pseudo-lignin Formation during Dilute Acid Pretreatment for Cellulosic Ethanol.  United States: N. p., 2017. 
Web.  doi:10.19080/RAPSCI.2017.01.555551.

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                    Meng, Xianzhi, & Ragauskas, Arthur J. Pseudo-lignin Formation during Dilute Acid Pretreatment for Cellulosic Ethanol.  United States.  https://doi.org/10.19080/RAPSCI.2017.01.555551

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                    Meng, Xianzhi, and Ragauskas, Arthur J. Mon .  
"Pseudo-lignin Formation during Dilute Acid Pretreatment for Cellulosic Ethanol".  United States.  https://doi.org/10.19080/RAPSCI.2017.01.555551.  https://www.osti.gov/servlets/purl/1376592.

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@article{osti_1376592,

  title        = {Pseudo-lignin Formation during Dilute Acid Pretreatment for Cellulosic Ethanol},

  author       = {Meng, Xianzhi and Ragauskas, Arthur J.},

  abstractNote = {Dilute acid-based pretreatment represents one of the most important pretreatment technologies to reduce biomass recalcitrance and it has been successfully applied to a wide range of feedstocks. During this type of pretreatment, the relative lignin content usually increases partially due to the loss of carbohydrates. More importantly, it has been reported that the increase of lignin content after dilute acid pretreatment is mainly due to the formation of pseudo-lignin. Furthermore, the exact reaction mechanisms leading to the formation of pseudo-lignin is still under investigation. However, it has been proposed that rearrangement of hydroxymethylfurfural (HMF) or furfural can produce aromatic type of compounds which can further undergo polymerization reactions to from a lignin-like polyphenolic structures termed as pseudo-lignin. Likewise, this mini-review mainly covers recent advances in understanding the fundamentals of pseudo-lignin formation during dilute acid pretreatment, the impact of its formation on enzymatic hydrolysis, and how to suppress its formation during dilute acid pretreatment.},

  doi          = {10.19080/RAPSCI.2017.01.555551},

  journal      = {Recent Advances in Petrochemical Science},

  number       = 1,

  volume       = 1,

  place        = {United States},

  year         = {Mon Apr 17 00:00:00 EDT 2017},

  month        = {Mon Apr 17 00:00:00 EDT 2017}

}

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Works referencing / citing this record:

Comparison of pyrolyzed lignin before and after milled wood lignin purification of Norway spruce with increasing steam explosion
journal, April 2019

Aarum, Ida; Solli, Anders; Gunnarsson, Hördur
Wood Science and Technology, Vol. 53, Issue 3
DOI: 10.1007/s00226-019-01088-x

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Citation Formats

Comparison of pyrolyzed lignin before and after milled wood lignin purification of Norway spruce with increasing steam explosion journal, April 2019

Comparison of pyrolyzed lignin before and after milled wood lignin purification of Norway spruce with increasing steam explosion
journal, April 2019