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Showing 1 to 20 of 72 for “"Lignocellulose"”.
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Laccases from actinomycetes for lignocellulose degradation
The purpose of this study shows that lignocellulose has a complex structure composed mainly of lignin, hemicellulose and cellulose. Several enzymes are needed for the degradation of lignocellulose into simple sugars. Actinomycetes are known to produce laccases which are able to degrade lignin. …
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Studies of Cellulosic Ethanol Production from Lignocellulose
… oil, and allows for cleaner burning of gasoline. Lignocellulose materials are structurally composed of five types of polymeric sugars, glucan, galactan, mannan, arabinan, and xylan. NREL has developed a quantitative saccharification (QS) method for determining carbohydrate composition. We proposed …
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Hydrolysis of lignocellulose using enzymes from pelletized Trichoderma reesei fermentation
Thesis (M.S.)--Michigan State University. Biosystems Engineering, 2010
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Lignocellulose deconstruction using glyceline and a chelator-mediated Fenton system
Non-edible plant biomass (lignocellulose) is a valuable precursor for liquid biofuels, through the processes of pretreatment and saccharification followed by fermentation into products such as ethanol or butanol. However, it is difficult to gain access to the fermentable sugars in lignocellulose, …
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Pulsed electric field pretreatment of lignocellulose biomass for maximum fermentable sugar yield
The utilization of lignocellulosic biorefinery processes holds great promise for the production of biofuels and biochemicals. Lignocellulosic biomass, which includes materials such as plant straw, chaff, various grasses, sawdust, soft and hard woods, tree leaves, and paper waste, represents an …
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High-performance liquid chromatographic methods for quantitative assessment of degradation products and extractives in pretreated lignocellulose.
… methods to advance a more understanding of lignocellulose pretreatment. Several liquid chromatographic methods are developed for a systematic analysis of various degradation products. High-performance liquid chromatography is the most widely used analytical separation technique, because of …
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Effects of Alkaline Hydrogen-Peroxide Treatment of Crop Residues on Cell Wall Carbohydrate Utilization by Ruminants (Lignocellulose)
Cellulose, generally the major component of plant cell walls, would have great potential as a ruminant animal feedstuff if factors limiting its microbial degradation in the ruminant's gastrointestinal tract could be removed by chemical treatment. Treating lignocellulosic materials with an alkaline …
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Lignocellulose Saccharification via Cellulose Solvent Based Fractionation Followed by Enzymatic Hydrolysis: the Last Obstacle to Integrated Biorefineries
… biomass. Cellulose- and organic-solvent-based lignocelluloses fractionation (COSLIF) technology was employed to overcome biomass recalcitrance. Surface response methodology (SRM) showed that optimal COSLIF pretreatment conditions were 85% (w/v) H₃PO₄ and ~50 °C, regardless of moisture contents …
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Investigating the lignocellulolytic gut microbiome of huhu grubs
… believed to have the ability to fully degrade lignocellulose, it is likely that microbes present in the gut assist in degrading lignocellulose to release energy rich sugars. This process is considered the rate limiting step in the utilisation of woody material in biofuel production. To better …
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The analysis of an enzyme (Ce1A) and a gene system (abg) involved in the utilization of lignocellulose in the rumen
As lignocellulose represents an abundant renewable resource, research is in progress to obtain a better understanding of the natural mechanisms whereby this resource is utilised. Of particular interest is the degradation of forage in the rumen and one research goal is to ultimately increase animal …
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Pretreatment Of Cellulosic Biomass By Iron-Containing Magnetic Ionic Liquid Dissolution
… (Emim[FeCl4])) are used as a green solvent. Lignocellulose is a promising starting material for a plethora of products, ranging from biofuels to custom chemicals; however, lignocellulose is resistant to enzymatic degradation. Various biomass-preprocessing techniques such as microbial, …
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Pure culture and metagenomic approaches to investigate cellulose and xylan degradation
Lignocellulose is composed of lignin, hemicellulose, and cellulose. Lignocellulose waste is a sustainable and renewable resource available for use in biotechnological applications. Efficient enzyme production and enzymes with high catalytic activity are needed for the use of lignocellulose. The …
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Molecular interactions of plant cell wall polymers
… walls, called secondary cell walls comprised of lignocellulose. The main polymers in lignocellulose are cellulose, xylan, galactoglucomannan and lignin. Lignocellulose forms the majority of biomass on the planet and its utilization for construction, energy production, materials and …
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Messa a punto di processi biotecnologici per la produzione di biocombustibili da matrici organiche di rifiuto
… too. Moreover, since the degradation of lignocellulose appears to be a limiting step in the anaerobic treatment of a wide range of biomass, the possibility of optimizing anaerobic digestion of lignocellulosic substrates was also studied. To this aim a research was carried out at the …
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Investigating biomass saccharification for the production of cellulosic ethanol
… DA, and cellulose solvent- and organic solvent-lignocellulose fractionation, COSLIF) for corn stover were compared. It was found that glucan digestibility of the corn stover pretreated by COSLIF was much higher, along with faster hydrolysis rate, than that by DA- pretreated. This difference was …
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Advancing characterization techniques for structure-property determination of in-situ lignocelluloses
… biomass utilization. In an effort to advance lignocellulose characterization, gain insights into biomass processing, and obtain novel perspectives on cell wall ultrastructure, this study utilizes three principal polymer characterization techniques, namely compressive-torsion dynamic mechanical …
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Identification and characterisation of lignin degrading bacteria and enzymes fromlarval guts of the African Palm Weevil (Rhynchophorus phoenicis)
… main structural components of plant cell walls. Lignocellulose, however, is resistant to degradation, thus there is a high cost and energy requirement associated with its pretreatment in order to access the lignin bound polysaccharides for subsequent hydrolysis, fermentation and conversion to …
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The Effect of Temperature on Lignin Degradation in Municipal Solid Waste
… Typically paper consists of 79% to 98% of lignocellulose which is considered to be the most abundant source of natural carbon on earth. Lignocellulose decomposition depends on the association of biodegradable cellulose and hemicellulose with lignin. Lignin is a recalcitrant material which …
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