Bioenergy and the Sustainable Revolution

Santos, Wanderley Dantas dos; Gómez, Edgardo Olivares; Buckeridge, Marcos Silveira

doi:10.1007/978-0-387-92740-4_2

Cited by 13 publications

(14 citation statements)

References 4 publications

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“…Although type II cell walls only are found in few orders clustered as commelinoid, these include all cereal crops and perennial grasses (Carpita and McCann, 2000) responding for most of the biomass produced in agriculture (dos Santos et al, 2011). In type II cell walls, GAX intermittently interact with cellulose through hydrogen linkages cross-linking microfibrils (Lee et al, 2008) which contributes with up to 40% of dry weight (Scheller and Ulvskov, 2010).…”

Section: Ferulic Acid Function Biosynthesis and Cell Wall Esterificamentioning

confidence: 99%

“…The worldwide enrichment occurred after industrial revolution was fuelled with coal and petroleum (dos Santos et al, 2011). But, as a finite resource, fossil fuels cannot sustain technological development indefinitely.…”

Section: Introductionmentioning

confidence: 99%

“…The revolutionary potential of cellulosic ethanol for civilization justifies per se the importance of overcoming cell wall recalcitrance (dos Santos et al, 2011). However, the relevance of this knowledge can reach far beyond the fuel industry with benefits which comes from plant physiology and wood science to paper industry and cattle feed.…”

Section: Introductionmentioning

confidence: 99%

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Ferulic acid: a key component in grass lignocellulose recalcitrance to hydrolysis

Oliveira

Finger-Teixeira

Mota

et al. 2014

Plant Biotechnology Journal

221

158

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SummaryIn the near future, grasses must provide most of the biomass for the production of renewable fuels. However, grass cell walls are characterized by a large quantity of hydroxycinnamic acids such as ferulic and p-coumaric acids, which are thought to reduce the biomass saccharification. Ferulic acid (FA) binds to lignin, polysaccharides and structural proteins of grass cell walls cross-linking these components. A controlled reduction of FA level or of FA cross-linkages in plants of industrial interest can improve the production of cellulosic ethanol. Here, we review the biosynthesis and roles of FA in cell wall architecture and in grass biomass recalcitrance to enzyme hydrolysis.

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Section: Ferulic Acid Function Biosynthesis and Cell Wall Esterificamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ferulic acid: a key component in grass lignocellulose recalcitrance to hydrolysis

Oliveira

Finger-Teixeira

Mota

et al. 2014

Plant Biotechnology Journal

221

158

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“…The socalled 2G route involves biomass pretreatments in which polysaccharides would become available for enzymatic hydrolysis by application of physical and/or chemical treatments (Soccol et al 2010;Dos Santos et al 2011).…”

mentioning

confidence: 99%

Using Natural Plant Cell Wall Degradation Mechanisms to Improve Second Generation Bioethanol

Grandis

Souza

Tavares

et al. 2013

Plants and BioEnergy

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Cell wall hydrolysis is one of the key processes needed for development of the technology for second-generation (2G) bioethanol production. Thus, finding and characterizing enzymes that can deal with the complexity of the walls has been the main focus of research. As a result, data on pretreatments of many kinds and performances of enzyme cocktails containing glycosyl hydrolases from microorganisms are becoming quickly available. Here we propose that the efficiency of the 2G process could be increased even further by acquiring control of mechanisms that plants themselves use to degrade their own walls, so that wall loosening provoked by such processes would decrease the energy demand for pretreatments and facilitate hydrolysis. The examined in this chapter are plant-microorganism interaction, cell wall storage mobilization, fruit ripening, abscission, and aerenchyma formation. These systems are seen as having in common the use of modules that are coupled sequentially in order to lead to cell wall modification, including hydrolysis, for performance of different biological functions. These modules are (1) target cells perception of a message from the hormonal balance, (2) cell separation, (3) cell expansion, (4) programmed cell death, (5) hemicellulose-cellulose relaxation/hydrolysis and (6) cellulose hydrolysis. We propose that the use of synthetic biology to transform bioenergy feedstocks could be a route to increase the efficiency of 2G processes. IntroductionThe main bioethanol producers in the world are the US and Brazil, the former producing it from maize starch and the second from sucrose from sugarcane culms. In order to increase bioethanol production without increasing acreage, second

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“…The production of bioethanol by means of 2G technologies involves the use of strategies that should modify the organization of cell wall architecture. The socalled 2G route involves biomass pretreatments in which polysaccharides would become available for enzymatic hydrolysis by application of physical and/or chemical treatments (Soccol et al 2010;Dos Santos et al 2011). …”

Section: >Umentioning

confidence: 99%

Papel das enzimas de degradação da parede celular na formação do aerênquima em raízes de cana de açúcar

Grandis¹

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Bioenergy and the Sustainable Revolution

Cited by 13 publications

References 4 publications

Ferulic acid: a key component in grass lignocellulose recalcitrance to hydrolysis

Ferulic acid: a key component in grass lignocellulose recalcitrance to hydrolysis

Using Natural Plant Cell Wall Degradation Mechanisms to Improve Second Generation Bioethanol

Papel das enzimas de degradação da parede celular na formação do aerênquima em raízes de cana de açúcar

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