Improvement of oxygen transfer coefficient during Penicillium canescens culture : influence of turbine design, agitation speed and air flow rate.
; ; et al
Poster (1997, May)Detailed reference viewed: 10 (0 ULg)
Maintenance after Drying and during Long Term Preservation of Biodegradation Properties of Hydrocarbon degrading Bacteria selected for their drought Resistance.
; ; et al
Poster (1997, May)Detailed reference viewed: 6 (1 ULg)
Stratégie de gestion des déchets solides urbains en Afrique.
; Thonart, Philippe
in Actes de l'Atelier "La problématique des déchets solides dans les villes africaines" (1997, May)Detailed reference viewed: 24 (3 ULg)
Identification of factors influencing the production of lipopeptides by Bacillus subtilis.
; ; Razafindralambo, Hary et al
Poster (1997, April)Detailed reference viewed: 7 (0 ULg)
Improvement of oxygen transfert during Penicillium canescens cultivation in agitated fermenter.
; ; et al
Poster (1997, April)Detailed reference viewed: 3 (0 ULg)
Cell factories for the production of bioactive peptides from Bacillus subtilis and Pseudomonas.
; ; Thonart, Philippe et al
Poster (1997, April)Detailed reference viewed: 9 (0 ULg)
Surface-active properties of surfactin iturin A mixtures produced by Bacillus subtilis
Razafindralambo, Hary ; ; Deleu, Magali et al
in Langmuir (1997), 13(23), 6026-6031
Surface-active properties including dynamic adsorption, monolayer stability, micelle forming capacity, and foaming aptitudes of surfactin-C-15/iturin A-C-15 mixtures were studied. Surfactin-C-15 and ... [more ▼]
Surface-active properties including dynamic adsorption, monolayer stability, micelle forming capacity, and foaming aptitudes of surfactin-C-15/iturin A-C-15 mixtures were studied. Surfactin-C-15 and iturin A-C-15 molecules interact in synergism on the most surface-active properties evaluated at 20 degrees C at the air-water interface and in aqueous solution (pH 8.0). The synergism is positive on the adsorption effect, monolayer stability, foam density, and liquid stability in foam, whereas it is negative on the adsorption rate. No synergism occurs an micelle forming capacity, but surfactin-C-15 and iturin A-C-15 form mixed micelles when the solution contains a low proportion of surfactin-C-15.ses the synergistic effect is maximum when surfactin-C-15 and iturin A-C-15 molecules are mixed in a 2:3 ratio. This is attributed to the surfactin/iturin A complex formation resulting from specific interactions among two surfactin-C-15 molecules and three iturin A-C-15 molecules. A model of such a complex formation is proposed. [less ▲]Detailed reference viewed: 86 (44 ULg)
Absolute Configuration Of The Isopyoverdin Chromophore
; ; et al
in Zeitschrift Fur Naturforschung C-A Journal of Biosciences (1997), 52(7-8), 549-550Detailed reference viewed: 10 (3 ULg)
Effect of drying and long term conservation on bioremediation properties of Rhodococcus erythropolis
; Jacques, Philippe ; et al
in Mededelingen van de Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen (Rijksuniversiteit te Gent) (1997), 62/4bDetailed reference viewed: 8 (2 ULg)
A 5,6-Dihydro-Isopyoverdin From Azomonas Macrocytogenes
; ; et al
in Zeitschrift Fur Naturforschung C-A Journal of Biosciences (1997), 52(11-12),Detailed reference viewed: 20 (3 ULg)
Foaming properties of a natural cyclic lipoheptapeptide belonging to a special class of amphiphilic molecules
Razafindralambo, Hary ; Paquot, Michel ; et al
in Food Hydrocolloids (1997), 11(1), 59-62
The foaming properties of surfactin, a natural cyclic lipoheptapeptide from Bacillus subtilis, were investigated in comparison and in association with those of bovine serum albumin (BSA). An apparatus ... [more ▼]
The foaming properties of surfactin, a natural cyclic lipoheptapeptide from Bacillus subtilis, were investigated in comparison and in association with those of bovine serum albumin (BSA). An apparatus combining bubbling, optical and conductimetric methods was used to study continuously foam formation and stability in terms of the quantity and density of foam. The increase in surfactin concentration from 0.05 to 0.2 mg/ml had little effect on its foaming capacity, measured by the bubbling time to produce the required foam volume, but improved the foam maximum density significantly. Surfactin produced foam with higher maximum density and stability, and forms more regular and smaller bubbles than BSA. In addition, a synergistic effect was observed on the stability of liquid in foam prepared with a mixture of 50:50 surfactin/BSA. The liquid half-life of BSA foam was enhanced up to 40% when surfactin was added to the solution. [less ▲]Detailed reference viewed: 45 (26 ULg)
Study on the Production of Xylanolytic complex from Pencillium canescens 10-10c.
; ; et al
in Applied Biochemistry and Biotechnology (1997), 67Detailed reference viewed: 6 (2 ULg)
Caractéristiques microbiologiques et organoleptiques du nététu du commerce.
; ; et al
in Cahiers Agricultures (1997), 6Detailed reference viewed: 8 (0 ULg)
Freeze-drying of lactic acid bacteria : Lactobacillus acidophilus
; ; Destain, Jacqueline et al
in Mededelingen - Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent (1997), 62/4bDetailed reference viewed: 26 (2 ULg)
The Degradation Of L-Tyrosine To Phenol And Benzoate In Pig Manure - The Role Of 4-Hydroxy-Benzoate
; ; Thonart, Philippe
in Applied Biochemistry and Biotechnology (1997), 63-5Detailed reference viewed: 18 (2 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: 30 (14 ULg)
Improvement Of Lipase Production From Yarrowia Lipolytica
Destain, Jacqueline ; ; Thonart, Philippe
in Biotechnology Letters (1997), 19(2),Detailed reference viewed: 14 (1 ULg)