Showing results 161 to 180 of 221
 Chemical characterization of Yarrowia lipolytica extracellular lipase.Destain, Jacqueline  ; ; et alPoster (2000, September) Detailed reference viewed: 4 (0 ULg)Study of lipase production by yeast Yarrowia lipolytica; Destain, Jacqueline ; Thonart, Philippe Poster (2000, September) Detailed reference viewed: 9 (1 ULg)Improvement of lipase production by the yeast Yarrowia lipolytica; Destain, Jacqueline ; Thonart, Philippe Poster (2000, March 31) Detailed reference viewed: 6 (1 ULg)Purification and characterization of Yarrowia lipolytica exracellular lipase.Destain, Jacqueline ; ; et alPoster (1999, September) Detailed reference viewed: 3 (0 ULg)La problématique de la gestion des déchets ménagers en République d'HaïtiThonart, Philippe ; ; et alConference (1999, September) Detailed reference viewed: 13 (0 ULg)Comparative study of bile salts hydrolase activity from Lactobacilli ssp.El Mejdoub, Thami ; ; Destain, Jacqueline et alPoster (1999, July) Detailed reference viewed: 5 (2 ULg)Screening of new microorganisms for pectinases production; ; et al Poster (1999, July) Detailed reference viewed: 6 (2 ULg)The monitoring of the enzymatic depolymerisation of pectins by spectroscopic techniques.; ; et al Poster (1999, July) Detailed reference viewed: 3 (0 ULg)Screening of pectolytic microorganisms by near infrared reflectance spectroscopy.; ; et al Poster (1999, June) Detailed reference viewed: 1 (0 ULg)La biotechnologie, une alliée ou une concurrente de l’agro-alimentaire.Thonart, Philippe ; Destain, Jacqueline Article for general public (1999) Detailed reference viewed: 2 (0 ULg) A biological pluridisciplinary model to predict municipal landfill life; Hiligsmann, Serge ; Radu, Jean-Pol et alin 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 ▲] Detailed reference viewed: 42 (2 ULg) Optimization of biosurfactant lipopeptide production from Bacillus subtilis S499 by Plackett-Burman design; ; Destain, Jacqueline et alin 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 ▲] Detailed reference viewed: 115 (12 ULg)Spray-drying of different lactic acid species.; ; et al in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1998), 63(4a), Detailed reference viewed: 18 (2 ULg)Production process of a new bacteriocin. Effect of bioreactor scale up on biological activity against E. amylovora, phytopathogen agent of fruit tree fire blight.; ; et al Poster (1997, August) Detailed reference viewed: 7 (0 ULg)Freeze-drying of lactic acid bacteria : Lactobacillus acidophilus; ; Destain, Jacqueline et alin Mededelingen - Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent (1997), 62/4b Detailed reference viewed: 6 (0 ULg)Lipase from Yarrowia lipolytica.Destain, Jacqueline ; ; Thonart, Philippe in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1997), 62(4a), Detailed reference viewed: 16 (1 ULg)Les bacs a graisse. une solution aux problemes des matieres grasses pour les PME.Thonart, Philippe ; Destain, Jacqueline ; Antoine, Paul et al(1997) Detailed reference viewed: 26 (14 ULg)Improvement Of Lipase Production From Yarrowia LipolyticaDestain, Jacqueline ; ; Thonart, Philippe in Biotechnology Letters (1997), 19(2), Detailed reference viewed: 7 (0 ULg)Les bacs à graisse : une solution aux problèmes des matières grasses pour les PMEThonart, Philippe ; Destain, Jacqueline ; et alin Tribune de l'Eau (La) (1997), 586/2 Detailed reference viewed: 27 (13 ULg)La problématique de la matière grasse : aspects théoriquesThonart, Philippe ; Destain, Jacqueline ; et alin Tribune de l'Eau (La) (1997), 586/2 Detailed reference viewed: 12 (2 ULg) |
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