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See detailHydrolyse enzymatique de la cellulose de paille, traitement mécanique et chimique [dégradation de la paille de blé, production de glucose].
Thonart, Philippe ULg; Paquot, Michel ULg; Foucart, M. et al

in Cahiers Trimestriels - Entretiens écologiques de Dijon (1981), (9),

Detailed reference viewed: 68 (3 ULg)
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See detailHydrolyse Enzymatique de la Cellulose régénérée.
Paquot, Michel ULg; Thonart, Philippe ULg

in Holzforschung : International Journal of the Biology, Chemistry, Physics, & Technology of Wood (1982), 36

Detailed reference viewed: 24 (6 ULg)
See detailHydrolyse enzymatique de la cellulose, une voie de développement possible.
Sacre, E.; Avella, T.; Mottet, A. et al

Scientific conference (1979, April 27)

A collection of 10 papers presented at a colloquium of the Centre de Populiculture du Hainaut, Belgium, on 27 April 1979: Sacre, E. [Characteristics of the wood of Populus euramericana in relation to its ... [more ▼]

A collection of 10 papers presented at a colloquium of the Centre de Populiculture du Hainaut, Belgium, on 27 April 1979: Sacre, E. [Characteristics of the wood of Populus euramericana in relation to its utilization.] Characteristiques du bois de peupliers euramericains en rapport avec son utilisation. 3-22. Avella, T. [Possibility of using poplar sawdust in wood/plastic combinations.] Possibilite d'utilisation de la sciure de peuplier dans les combinaisons bois-plastique. 23-28. Mottet, A.; Thonart, P.; Paquot, M. [Enzymatic hydrolysis of cellulose, a possible line of development.] Hydrolyse enzymatique de la cellulose, une voie de developpement possible. 29-38. Carre, J. [The possibility of using poplar in the particleboard industry.] Les possibilites d'emploi du peuplier dans l'industrie du panneau de particules. 39-52. Papegnie, F. [Poplar wood for carpentry.] Le bois de menuiserie en peuplier. 53-59. Bocks, C. [The future of rotary veneer in Belgium.] Perspectives pour le bois de deroulage en Belgique. 60-65. Herpelinck, M. [External quality criteria for poplar for peeling in the match industry.] Criteres exterieurs de qualite du peuplier pour deroulage dans l'industrie allumettiere. 66-69. Picron, G. [Defects of poplar veneer in the match industry.] Les defauts du bois de peuplier deroule en industrie allumettiere. 69-80. Gillin, O. [Price comparison for poplar saw timber and veneer.] A quel prix peut-on faire du peuplier de sciage ou de deroulage. Sory, M. [Relationships between proprietors and timber merchants.] Les rapports entre proprietaires et exploitants. 94-99. [less ▲]

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See detailHydrolyse enzymatique de pâtes de papaterie. Dosage des sucres obtenus en fonction des traitements mécaniques
Tshiamala, T.; Bouillet, A.; Wathelet, Bernard ULg et al

in Holzforschung : International Journal of the Biology, Chemistry, Physics, & Technology of Wood (1980), 34

Wood pulps (from hard wood and softwood) and waste papels wele hydrolysed by an enzymatic saccharification process. Sugars products were analysed by gaz chromatography. Typs of pulps, mechanical treatment ... [more ▼]

Wood pulps (from hard wood and softwood) and waste papels wele hydrolysed by an enzymatic saccharification process. Sugars products were analysed by gaz chromatography. Typs of pulps, mechanical treatment and enzymes have been investigated. Mechanical treatment (refining and bearing do not significately affect copper number, degree of polymerisation and pentosan content' Enzymic digestibiîity is enhanced during bearing. This increase digesdbility is apparently not related to the destruction of cellulose super molecular structure. [less ▲]

Detailed reference viewed: 42 (9 ULg)
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See detailHydrolyse enzymatique de pâtes de papeterie - Influence des traitements mécaniques de préparation
Thonart, Philippe ULg; Paquot, Michel ULg; Mottet, Alphonse

in Holzforschung : International Journal of the Biology, Chemistry, Physics, & Technology of Wood (1979), (33), 197-202

Detailed reference viewed: 11 (2 ULg)
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See detailHydrolyse enzymatique de pates de papeterie [de feuilleus et de resineux].
Thonart, Philippe ULg; Paquot, Michel ULg; Mottet, A.

in Holzforschung (1980), 33(6),

Detailed reference viewed: 9 (1 ULg)
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See detailHydrolyse enzymatique de résidus d'extraction alcaline d'écorces de pinus pinaster.
Parajo, J.-C.; Paquot, Michel ULg; Foucart, M. et al

in Belg. Journ. of Food Chem. and Biotech (1988), 43(2), 51-58

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See detailHydrolysis of starch by sorghum malt for maltodextrin production
Ba, Khady ULg; Destain, Jacqueline ULg; Thonart, Philippe ULg

Poster (2009, December 16)

Maltodextrin is a mixture of saccharides with a molecular weight between polysaccharides and oligosaccharides with DE lower than 20. Maltodextrin is more soluble in water than native starches, also is ... [more ▼]

Maltodextrin is a mixture of saccharides with a molecular weight between polysaccharides and oligosaccharides with DE lower than 20. Maltodextrin is more soluble in water than native starches, also is cheaper in comparison with other major edible hydrocolloids. Maltodextrin is obtained by moderate enzymatic or acidic hydrolysis of starch. The hydrolysis of starch, catalyzed by amylases, is the most important commercial enzyme process. The hydrolyzed products are widely applied in food, paper and textile industries. Because of the increasing demand for these enzymes in various industries, there is enormous interest in developing enzymes with better properties, such as raw starch-degrading amylases suitable for industrial applications and their cost-effective production techniques. Sorghum (Sorghum bicolor) is a widely grown crop in Africa. Obtaining enzymes from sorghum requires a transformation. The objective of this study was application of sorghum amylase for maltodextrin. Sorghum seeds were supplied by the ISRA (Bambey, Senegal). Seeds were germinated in the laboratory at 30°C for 72 h and the sorghum malt was dried at 40°C for 48 h. Corn starch (from Roquette, France) hydrolysis was assayed in a bioreactor of 2 l at a temperature of 65°C gently stirred. Raw starch was slurried in water (30% w/v) and sorghum malt was introduced, chloride calcium was added, pH was adjusted to 6. Maltodextrin was characterized in term of the dextrose equivalent (DE) during the hydrolysis. The yield of hydrolysis was evaluated by soluble solids (° BRIX) at different hydrolysis time. The glucose concentration released was measured by DNS method (Miller method). [less ▲]

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See detailHydrolysis of starch by sorghum malt for maltodextrin production
Ba, K.; Destain, Jacqueline ULg; Thonart, Philippe ULg

Scientific conference (2010)

Maltodextrin is a mixture of saccharides with a molecular weight between polysaccharides and oligosaccharides with DE lower than 20. Maltodextrin is more soluble in water than native starches, also is ... [more ▼]

Maltodextrin is a mixture of saccharides with a molecular weight between polysaccharides and oligosaccharides with DE lower than 20. Maltodextrin is more soluble in water than native starches, also is cheaper in comparison with other major edible hydrocolloids. Maltodextrin is obtained by moderate enzymatic or acidic hydrolysis of starch. The hydrolysis of starch, catalyzed by amylases, is the most important commercial enzyme process. The hydrolyzed products are widely applied in food, paper and textile industries. Because of the increasing demand for these enzymes in various industries, there is enormous interest in developing enzymes with better properties, such as raw starch-degrading amylases suitable for industrial applications and their cost-effective production techniques. Sorghum (Sorghum bicolor) is a widely grown crop in Africa. Obtaining enzymes from sorghum requires a transformation. The objective of this study was application of sorghum amylase for maltodextrin. Sorghum seeds were supplied by the ISRA (Bambey, Senegal). Seeds were germinated in the laboratory at 30°C for 72 h and the sorghum malt was dried at 40°C for 48 h. Corn starch (from Roquette, France) hydrolysis was assayed in a bioreactor of 2 l at a temperature of 65°C gently stirred. Raw starch was slurried in water (30% w/v) and sorghum malt was introduced, chloride calcium was added, pH was adjusted to 6. Maltodextrin was characterized in term of the dextrose equivalent (DE) during the hydrolysis. The yield of hydrolysis was evaluated by soluble solids (° BRIX) at different hydrolysis time. The glucose concentration released was measured by DNS method (Miller method). [less ▲]

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See detailHydrolysis of starches and flours by sorghum malt amylases for dextrins production
Ba, Khady ULg; Aguedo, Mario ULg; Tine, Emmanuel et al

in European Food Research & Technology (2013)

Corn and wheat starches as well as wheat and cassava flours were hydrolyzed using sorghum malt at 65 °C for 6 hours. During these reactions, dextrose equivalent (DE) values were followed under 3 ... [more ▼]

Corn and wheat starches as well as wheat and cassava flours were hydrolyzed using sorghum malt at 65 °C for 6 hours. During these reactions, dextrose equivalent (DE) values were followed under 3 concentrations of sorghum malt and of calcium chloride. Wheat flour presented the highest DE values and cassava flour had the highest hydrolysis yield. Thus, different dextrins were produced in a pilot plant and were analyzed by HPSEC and HPAEC-PAD for their molecular weight distribution and oligosaccharides composition respectively. The results indicated that oligosaccharides with broad molecular weight distributions were present in the dextrins produced and that the proportion of maltose was very high. [less ▲]

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See detailHydrolysis Of The Dimethyl Ester Of N-Succinylphenylalanine, A Model Of Polyesteramides, In The Presence Of Papain - Kinetic Study And Computer Simulation
David, C.; Lefèbvre, F.; Brasseur, Robert ULg et al

in Enzymes In Polymer Synthesis (1998), 684

Our work is concerned with the kinetics of enzymatic hydrolysis of substrates containing ester and amide groups and with the interactions between the active site of the enzyme and the function to be ... [more ▼]

Our work is concerned with the kinetics of enzymatic hydrolysis of substrates containing ester and amide groups and with the interactions between the active site of the enzyme and the function to be hydrolyzed, special attention is paid to differences between a soluble substrate which can fit the active site and a crystalline or semi-crystalline substrate. [less ▲]

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See detailHydrolytic and thermal degradation of random copolyesters of epsilon-caprolactone and 2-oxepane-1,5-dione
Dwan'Isa Latere, Jean-Pierre; Lecomte, Philippe ULg; Dubois, Philippe ULg et al

in Macromolecular Chemistry and Physics (2003), 204(9), 1191-1201

The hydrolytic and thermal stability of random copolyesters of epsilon-caprolactone (epsilon-CL) and ca. 30 mol-% 2-oxepane-1,5-dione (OPD) have been investigated. Compared with poly(epsilon-caprolactone ... [more ▼]

The hydrolytic and thermal stability of random copolyesters of epsilon-caprolactone (epsilon-CL) and ca. 30 mol-% 2-oxepane-1,5-dione (OPD) have been investigated. Compared with poly(epsilon-caprolactone) (PCL) of a comparable molecular weight, the hydrolytic degradation of the copolyester is faster in a phosphate buffer (pH = 7.4) at 37°C as confirmed by the time dependence of water absorption, weight loss, melting temperature, and molecular weight. This difference is a result of the higher hydrophilicity imparted to the copolyester by the ketone of the OPD units. The thermal degradation has been studied by thermogravimetric analysis (TGA), (HNMR)-H-1 spectroscopy, and size exclusion chromatography (SEC). The activation energy of the thermal degradation under nitrogen has been found to be lower for the copolyesters than for PCL, which indicates that the OPD co-units have a deleterious effect on the thermal stability of PCL. The thermal degradation primarily occurs by pyrolysis of the ester functions. [less ▲]

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See detailHydromechanical analysis of fracturing in clayey rocks : modelling of disturbed argillite and ventilation test
Pardoen, Benoît ULg; Collin, Frédéric ULg

Scientific conference (2012, February 15)

The present advances in hydro-mechanical analysis of a clayey rock fracturing are presented at a department seminar. The damaged zone existing around galleries composing underground structures is studied ... [more ▼]

The present advances in hydro-mechanical analysis of a clayey rock fracturing are presented at a department seminar. The damaged zone existing around galleries composing underground structures is studied through two aspects: rock-atmosphere interaction at gallery wall and rock fracturing modelling. These two aspects are discussed through the numerical results of an in situ ventilation test modelling and a biaxial compression test modelling. [less ▲]

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See detailHydromechanical behaviour of bentonite under in situ conditions
Dieudonné, Anne-Catherine ULg; Talandier, Jean; Collin, Frédéric ULg et al

Conference (2015)

Detailed reference viewed: 17 (3 ULg)
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See detailHydromechanical coupling and strain localisation
Charlier, Robert ULg; Radu, Jean-Pol ULg

in Proc. of the NAFEMS World Congress (1997, April)

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See detailHydromechanical coupling theory in unsaturated geomaterials and its numerical integration
Charlier, Robert ULg; Radu, Jean-Pol ULg; Gerard, Pierre ULg et al

in Laloui, Lyesse (Ed.) Mechanics of Unsaturated Geomaterials (2013)

Detailed reference viewed: 70 (26 ULg)
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See detailHydromechanical modelling of shaft sealing for CO2 storage
Dieudonné, Anne-Catherine ULg; Cerfontaine, Benjamin ULg; Collin, Frédéric ULg et al

in Engineering Geology (2015), 193

The geological sequestration of CO2 in abandoned coal mines is a promising option to mitigate climate changes while providing sustainable use of the underground cavities. In order to certify the ... [more ▼]

The geological sequestration of CO2 in abandoned coal mines is a promising option to mitigate climate changes while providing sustainable use of the underground cavities. In order to certify the efficiency of the storage, it is essential to understand the behaviour of the shaft sealing system. The paper presents a numerical analysis of CO2 transfer mechanisms through a mine shaft and its sealing system. Different mechanisms for CO2 leakage are considered, namely multiphase flow through the different materials and flow along the interfaces between the lining and the host rock. The study focuses on the abandoned coal mine of Anderlues, Belgium, which was used for seasonal storage of natural gas. A two-dimensional hydromechanical modelling of the storage site is performed and CO2 injection into the coal mine is simulated. Model predictions for a period of 500 years are presented and discussed with attention. The role and influence of the interface between the host rock and the concrete lining are examined. In addition the impact of some uncertain model parameters on the overall performance of the sealing system is analysed through a sensitivity analysis. [less ▲]

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See detailHydrometallurgy of precious metals - effects on the environment
Gaydardzhiev, Stoyan ULg

in Gallios and Matis (Ed.) Proceedings of a NATO-ASI, NATO-ASI Series 2, v. 43 (1998)

Factors which affect the release of toxic substabces to the environment during the hydrometallurgical processing of precious metals bearing ores are discussed. The environmental notions of the cyanidation ... [more ▼]

Factors which affect the release of toxic substabces to the environment during the hydrometallurgical processing of precious metals bearing ores are discussed. The environmental notions of the cyanidation process are presented together with a review about the work in the field of alternative gold lixiviants. [less ▲]

Detailed reference viewed: 111 (9 ULg)