References of "Destain, Jacqueline"
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See detailA biological pluridisciplinary model to predict municipal landfill life
Steyer, E.; Hiligsmann, Serge ULg; Radu, Jean-Pol ULg et al

in Christensen; Cossu; Stegmann (Eds.) Proceedings Sardinia 99, Seventh International Waste Management and Landfill Symposium (1999)

The degradation processes occurring within landfills are the keys to assessment and control of their environmental impact. This degradation results from different microbial activities interacting all ... [more ▼]

The degradation processes occurring within landfills are the keys to assessment and control of their environmental impact. This degradation results from different microbial activities interacting all along the landfill lifetime and influenced by several non-biological factors. Approaching these complex biological and chemical processes requires a multidisciplinary pattern. Thanks to Walloon Region support, we have developed a pattern or model combining the evolution of different key parameters. Such parameters qualify biogas (composition, production rate), leachate (pH, BOD5, COD, volatile fatty acids, redox potential, nitrogen balance, humic acids...), or solid waste (moisture, settlement, cellulose content...). This paper presents relationships, including our model, between these parameters. Variations of pH, BOD5/COD ratio, sulphate concentration in leachates and settlement measures allows to predict landfill age since completion. Evaluation of cellulose and water content in refuse as well as settlement degree are useful to estimate the time required for complete biological degradation. The mathematical model has also been applied, with success, to the case of Anton Sclayn site. [less ▲]

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See detailOptimization of biosurfactant lipopeptide production from Bacillus subtilis S499 by Plackett-Burman design
Jacques, P.; Hbid, C.; Destain, Jacqueline ULg et al

in Applied Biochemistry and Biotechnology (1999), 77-9

Bacillus subtilis S499 is well-known for its ability to produce two families of surfactant lipopeptides: Iturin A and Surfactin S1. Fermentation optimization for this strain was performed to amplify the ... [more ▼]

Bacillus subtilis S499 is well-known for its ability to produce two families of surfactant lipopeptides: Iturin A and Surfactin S1. Fermentation optimization for this strain was performed to amplify the surfactant production. Ten active variables were analyzed by two successive Plackett-Burman designs, consisting respectively of 12 and 16 experiments to give an optimized medium. The amount of biosurfactant lipopeptides in the supernatant of a culture carried out in this optimized medium was about five times higher than that obtained in nonoptimized rich medium. The analysis of the surfactant molecules produced in such optimized conditions has revealed the presence of a third family of lipopeptides: the fengycins. The time-dependent production of these three families of molecules in bioreactors showed that surfactin S1 is produced during the exponential phase and iturin A and fengycins during the stationary phase. [less ▲]

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See detailSpray-drying of different lactic acid species.
Desmons, S.; Zgoulli, S.; Evrard, P. et al

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1998), 63(4a),

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See detailFreeze-drying of lactic acid bacteria : Lactobacillus acidophilus
Desmons, S.; Zgoulli, S.; Destain, Jacqueline ULg et al

in Mededelingen - Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent (1997), 62/4b

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See detailLipase from Yarrowia lipolytica.
Destain, Jacqueline ULg; Weber, D.; Thonart, Philippe ULg

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1997), 62(4a),

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See detailImprovement Of Lipase Production From Yarrowia Lipolytica
Destain, Jacqueline ULg; Weber, D.; Thonart, Philippe ULg

in Biotechnology Letters (1997), 19(2),

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See detailLes bacs à graisse : une solution aux problèmes des matières grasses pour les PME
Thonart, Philippe ULg; Destain, Jacqueline ULg; Zgoulli, S. et al

in Tribune de l'Eau (La) (1997), 586/2

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See detailLa problématique de la matière grasse : aspects théoriques
Thonart, Philippe ULg; Destain, Jacqueline ULg; Antoine, P. et al

in Tribune de l'Eau (La) (1997), 586/2

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See detailImpact of the microbiology in the epuration processes.
Thonart, Philippe ULg; Destain, Jacqueline ULg; Antoine, Patrice et al

in Cerevisia and Biotechnology (1996), 21(2), 76-79

Biological treatments will progressively play a key role in the epuration process. Indeed, they show different advantages like reaction specificity, multiple degradation potentialities and efficiency at ... [more ▼]

Biological treatments will progressively play a key role in the epuration process. Indeed, they show different advantages like reaction specificity, multiple degradation potentialities and efficiency at very low concentrations of pollutants. Two approaches can be considered for developing biological processes of epuration : addition of bioactivators for improving endogenous microorganisms capabilities or introduction of microorganism starters for accelerating the epuration process. These two ways need as prerequisite a basic knowledge of the metabolic pathways for specific compound degradation and of microbial ecology [less ▲]

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See detailUtilisation de Bacillus subtilis (Cohn) comme insecticide a l'egard de Drosophila melanogaster (Meigen).
Lazare, K.; Haubruge, Eric ULg; Lienard, V. et al

in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1996), 61(3a),

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See detailProduction and properties of Yarrowia lipolytica lipase.
Destain, Jacqueline ULg; Valepyn, Emmanuel ULg; Roblain, D. et al

Poster (1995, February)

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See detailModelling the evolution of domestic wastes landfills.
Thonart, Philippe ULg; Dumont, M.; Destain, Jacqueline ULg et al

Poster (1995, February)

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See detailL'optimalisation de la gestion de l'eau en entreprise.
Thonart, Philippe ULg; Destain, Jacqueline ULg; Taillieu, Xavier et al

in Nouvelles de la Science et des Technologies (1995), 13(1), 277-284

Detailed reference viewed: 18 (4 ULg)
See detailIncrease in the extracellular lipase Production by Yarrowia lipolytica.
Destain, Jacqueline ULg; Roblain, D.; Thonart, Philippe ULg

Poster (1994, July)

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See detailTechnologie de production de starters.
Thonart, Philippe ULg; Cornelius, C.; Destain, Jacqueline ULg et al

Conference (1994, June 03)

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See detailBacillus subtilis as a biopesticide : biochemical and technological aspects
Thonart, Philippe ULg; Heuze, V.; Destain, Jacqueline ULg et al

in Progress in biotechnology (1994), 9

Detailed reference viewed: 31 (4 ULg)