Results 191 to 200 of about 4,505 (224)
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Autohydrolysis of aspen milled wood lignin
Canadian Journal of Chemistry, 1980In order to obtain further understanding of the nature of lignin reactions during autocatalysed hydrolysis (autohydrolysis) of wood, milled wood lignin (MWL) was isolated from aspen (Populus tremuloides) and treated under autohydrolysis conditions.
Jairo H. Lora, Morris Wayman
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Non-isothermal autohydrolysis of Eucalyptus wood
Wood Science and Technology, 2002Non-isothermal autohydrolysis treatments of Eucalyptus globulus wood were carried out in batch reactors in order to assess the kinetics of hemicellulose degradation, as well as the effects caused on cellulose and lignin. Experiments were carried out at a liquor to wood ratio of 8 g/g, and two heating profiles were explored.
G. Garrote, J. C. Parajó
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Autohydrolysis of plant polysaccharides using transgenic hyperthermophilic enzymes
Biotechnology and Bioengineering, 2000Commercial bioprocessing of plant carbohydrates, such as starch or cellulose, necessitates the use of commodity enzyme additives to accelerate polysaccharide hydrolysis. To simplify this procedure, transgenic plant tissues constitutively producing commodity enzymes were examined as a strategy for accelerating carbohydrate bioprocessing ...
R, Montalvo-Rodriguez +6 more
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Canadian Journal of Chemistry, 1979
Lignocellulosic residue remaining after autohydrolysis of extractive-free aspen wood meal at 195 °C for periods of time varying from 5 to 120 min followed by extraction with 90% dioxane was subjected to enzymatic hydrolysis to obtain residual lignin.
Morris Wayman, Miranda G. S. Chua
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Lignocellulosic residue remaining after autohydrolysis of extractive-free aspen wood meal at 195 °C for periods of time varying from 5 to 120 min followed by extraction with 90% dioxane was subjected to enzymatic hydrolysis to obtain residual lignin.
Morris Wayman, Miranda G. S. Chua
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Wheat Straw Autohydrolysis: Process Optimization and Products Characterization
Applied Biochemistry and Biotechnology, 2008Wheat straw was subjected to autohydrolysis treatments in order to selectively hydrolyze the hemicellulose fraction. The effects of temperature (150-240 degrees C) and non-isothermal reaction time on the composition of both liquid and solid phases were evaluated and interpreted using the severity factor (log R0).
Florbela, Carvalheiro +3 more
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hfsg, 2008
Abstract Three different levels of autohydrolysis intensity, expressed as the prehydrolysis (P)-factor, were applied to Eucalyptus globulus wood at a liquor/wood ratio of 5:1. Lignin fractions were isolated from the wood residue as milled wood lignin (MWL), from the hydrolysate by centrifugation (insoluble fraction) and by ethyl acetate ...
Moritz Leschinsky +4 more
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Abstract Three different levels of autohydrolysis intensity, expressed as the prehydrolysis (P)-factor, were applied to Eucalyptus globulus wood at a liquor/wood ratio of 5:1. Lignin fractions were isolated from the wood residue as milled wood lignin (MWL), from the hydrolysate by centrifugation (insoluble fraction) and by ethyl acetate ...
Moritz Leschinsky +4 more
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Integral valorization of two legumes by autohydrolysis and organosolv delignification
Bioresource Technology, 2009Two woody legumes species (Chamaecytisus proliferus L.F. ssp. palmensis and Leucaena diversifolia) were evaluated for integrally exploitation. The raw material was subjected to autohydrolysis under variable operating conditions which provided a liquid phase rich in hemicellulose oligomers and a solid phase that was used to obtain cellulose pulp and ...
A, Alfaro +5 more
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Kinetic assessment on the autohydrolysis of pectin-rich by-products
Chemical Engineering Journal, 2010Ministerio de Ciencia e Innovación | Ref.
Martínez Sabajanes, Martina +4 more
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Autohydrolysis pretreatment of secondary sludge for anaerobic digestion
Biochemical Engineering Journal, 2013Abstract The increase in the number of wastewater treatment plants and the quality required for the residue produced makes it necessary to improve the efficiency of anaerobic digestion of sludge. Pretreatments of secondary sludge have shown important advantages in the elimination of volatile solids and pathogenic microorganisms from the sludge, and ...
A. Carvajal, M. Peña, S. Pérez-Elvira
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Acta Biotechnologica, 1985
AbstractAutohydrolysis was studied as a pretreatment to enhance sugar yields from enzymatic hydrolysis of wheat and rape straw, beech, birch and poplar sawdust. Reaction temperatures were 185°C to 212°C and the reaction time 20 min. The pretreated slurries were hydrolyzed with “Novo” cellulase and Fusarium sp.
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AbstractAutohydrolysis was studied as a pretreatment to enhance sugar yields from enzymatic hydrolysis of wheat and rape straw, beech, birch and poplar sawdust. Reaction temperatures were 185°C to 212°C and the reaction time 20 min. The pretreated slurries were hydrolyzed with “Novo” cellulase and Fusarium sp.
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