Journal ArticleDOI
Lignin modification improves fermentable sugar yields for biofuel production.
Fang Chen,Richard A. Dixon +1 more
TLDR
Recalcitrance to saccharification is a major limitation for conversion of lignocellulosic biomass to ethanol and lignin modification could bypass the need for acid pretreatment and thereby facilitate bioprocess consolidation.Abstract:
Recalcitrance to saccharification is a major limitation for conversion of lignocellulosic biomass to ethanol. In stems of transgenic alfalfa lines independently downregulated in each of six lignin biosynthetic enzymes, recalcitrance to both acid pretreatment and enzymatic digestion is directly proportional to lignin content. Some transgenics yield nearly twice as much sugar from cell walls as wild-type plants. Lignin modification could bypass the need for acid pretreatment and thereby facilitate bioprocess consolidation.read more
Citations
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Journal ArticleDOI
Lignin valorization: improving lignin processing in the biorefinery.
Arthur J. Ragauskas,Gregg T. Beckham,Mary J. Biddy,Richard P. Chandra,Fang Chen,Mark F. Davis,Brian H. Davison,Richard A. Dixon,Paul Gilna,Martin Keller,Paul Langan,Amit K. Naskar,John N. Saddler,Timothy J. Tschaplinski,Gerald A. Tuskan,Charles E. Wyman +15 more
TL;DR: Recent developments in genetic engineering, enhanced extraction methods, and a deeper understanding of the structure of lignin are yielding promising opportunities for efficient conversion of this renewable resource to carbon fibers, polymers, commodity chemicals, and fuels.
Journal ArticleDOI
Chemicals from lignin: an interplay of lignocellulose fractionation, depolymerisation, and upgrading
Wouter Schutyser,Wouter Schutyser,Tom Renders,S. Van den Bosch,S.-F. Koelewijn,Gregg T. Beckham,Bert F. Sels +6 more
TL;DR: This review provides a summary and perspective of the extensive research that has been devoted to each of these three interconnected biorefinery aspects, ranging from industrially well-established techniques to the latest cutting edge innovations.
Journal ArticleDOI
Lignocellulosic biomass to bioethanol, a comprehensive review with a focus on pretreatment
Sohrab Haghighi Mood,Amir Hossein Golfeshan,Meisam Tabatabaei,Gholamreza Salehi Jouzani,Gholamhassan Najafi,Mehdi Gholami,Mehdi Ardjmand +6 more
TL;DR: This paper comprehensively reviews the lignocellulosic wastes to bioethanol process with a focus on pretreatment methods, their mechanisms, advantages and disadvantages as well as the combinations of different pretreatment technologies.
Journal ArticleDOI
Novel enzymes for the degradation of cellulose
TL;DR: This work describes recent developments in enzyme technology for conversion of cellulose, the most abundant, homogeneous and recalcitrant polysaccharide in lignocellulosic biomass, and focuses on a recently discovered new type of enzymes currently classified as CBM33 and GH61 that catalyze oxidative cleavage ofpolysaccharides.
Journal ArticleDOI
Cell‐wall carbohydrates and their modification as a resource for biofuels
Markus Pauly,Kenneth Keegstra +1 more
TL;DR: The main bottleneck for using wall materials is the recalcitrance of walls to efficient degradation into fermentable sugars as mentioned in this paper, which makes it difficult to use wall materials in the production of biofuel.
References
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Journal ArticleDOI
The path forward for biofuels and biomaterials
Arthur J. Ragauskas,Charlotte K. Williams,Brian H. Davison,George J. P. Britovsek,John Cairney,Charles A. Eckert,William J. Frederick,Jason P. Hallett,David J. Leak,Charles L. Liotta,Jonathan R. Mielenz,Richard J. Murphy,Richard H. Templer,Timothy J. Tschaplinski +13 more
TL;DR: The integration of agroenergy crops and biorefinery manufacturing technologies offers the potential for the development of sustainable biopower and biomaterials that will lead to a new manufacturing paradigm.
Journal ArticleDOI
Ethanol from lignocellulosic biomass: techno-economic performance in short-, middle- and long-term
TL;DR: In this paper, the state of the art of hydrolysis-fermentation technologies to produce ethanol from lignocellulosic biomass, as well as developing technologies, are evaluated.
Journal ArticleDOI
Chemical composition and response to dilute-acid pretreatment and enzymatic saccharification of alfalfa, reed canarygrass, and switchgrass
Bruce S. Dien,Hans-Joachim G. Jung,Kenneth P. Vogel,Michael D. Casler,JoAnn F. S. Lamb,Loren B. Iten,Robert B. Mitchell,Gautum Sarath +7 more
TL;DR: Alfalfa stems, reed canarygrass, and switchgrass; perennial herbaceous species that have potential as biomass energy crops in temperate regions; were evaluated for their bioconversion potential as energy crops.
Journal ArticleDOI
Purification, Cloning, and Properties of an Acyltransferase Controlling Shikimate and Quinate Ester Intermediates in Phenylpropanoid Metabolism
TL;DR: Hydroxycinnamoyl-CoA appears to control the biosynthesis and turnover of major plant phenolic compounds such as lignin and chlorogenic acid.