A5045086605- Microencapsulation and Drying Processes
- Proteins in Food Systems
- Electrohydrodynamics and Fluid Dynamics
- Pancreatic function and diabetes
- 3D Printing in Biomedical Research
- Polysaccharides Composition and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Enzyme Catalysis and Immobilization
- Pickering emulsions and particle stabilization
- Probiotics and Fermented Foods
- biodegradable polymer synthesis and properties
- Microbial Metabolic Engineering and Bioproduction
- Microbial Metabolites in Food Biotechnology
- Enzyme Production and Characterization
- Diabetes Management and Research
- Fluid Dynamics and Heat Transfer
- Food Chemistry and Fat Analysis
- Infant Nutrition and Health
- Hydrogels: synthesis, properties, applications
- Granular flow and fluidized beds
- Protein Hydrolysis and Bioactive Peptides
- Polyamine Metabolism and Applications
- Botanical Research and Applications
- Microfluidic and Bio-sensing Technologies
- Advanced Drug Delivery Systems
Laboratoire de Génie des Procédés – Environnement – Agro-alimentaire
2013-2023
Centre National de la Recherche Scientifique
2011-2021
Oniris
2011-2021
Nantes Université
2021
John Wiley & Sons (United States)
2019
Hudson Institute
2019
Institut National Polytechnique de Toulouse
2001-2016
École Nationale d'Ingénieurs des Techniques des Industries Agro-Alimentaires
2001-2016
École Normale Supérieure - PSL
2001-2012
Laboratoire Sols et Environnement
1995-2000
A bstract : Alginate microspheres were produced by emulsification/internal gelation of an alginate sol dispersed within vegetable oil, followed a reduction in pH to release calcium from insoluble salt. Microspheres with mean diameters ranging 50 1,000 μm obtained standard deviations 35 45% their value. Smooth, spherical beads the narrowest size dispersion when using low guluronic and viscosity carbonate complex as vector. The salt must also be included very fine powder promote homogeneous...
Abstract The mechanism of alginate droplet formation and experimental parameters for producing very small polymer microbeads (less than 100 μm dia.) using an electrostatic generator studied showed that the microbead size was a function needle diameter, charge arrangement (electrode geometry spacing) strength electric field. Perfectly spherical uniform beads, 170 dia., example, were obtained at potential difference 6 kV with 26‐gauge electrode distance 2.5 cm. Increasing field, thus surface...
Lactic acid bacteria were microencapsulated within cross-linked chitosan membranes formed by emulsification/interfacial polymerization. The technique was modified and optimized to provide biocompatible conditions during encapsulation involving the use of mineral oils as continuous phase membrane material. Chitosan with hexamethylene diisocyanate or glutaraldehyde resulted in strong membranes, a narrow size distribution about mean diameter 150 mum. Cell viability activity demonstrated...
The objective of this study was to investigate the effects process variables on encapsulation oil in a calcium alginate membrane using an inverse gelation technique. A dispersion chloride solution sunflower (water-in-oil emulsion) added dropwise solution. migration ions initiates formation ca-alginate around emulsion droplets. thickness wet capsules and elastic modulus dry increased following first-order kinetics with increasing curing time. An increase concentration capsules. decreased mean...
Alginate gels produced by an external or internal gelation technique were studied so as to determine the optimal bead matrix within which DNA can be immobilized for in vivo application. Alginates characterized guluronic/mannuronic acid (G/M) content and average molecular weight using 1H-NMR LALLS analysis, respectively. Nonhomogeneous calcium, alginate, distributions found made method because of calcium source used. In contrast, produces more uniform gels. Sodium was determined exchange ions...
Abstract A mild chitosan/calcium alginate encapsulation process, as applied to of hemoglobin, was investigated. The first procedure consisted adding dropwise a hemoglobin‐containing sodium mixture in chitosan solution, then hardening the interior capsules thus formed, presence CaCl 2 . In second method, droplets were directly pulled off chitosan–CaCl mixture. Both procedures led beads containing high concentration entrapped hemoglobin more than 90% initial (150 g/L) retained inside provided...
This work deals with optimising the cell survival of rhizobacteria encapsulated in alginate beads filled starch. Immobilisation was done by dripping alginate-starch solution mixed into a calcium solution. Beads were analysed based on matrix formulation, bacteria growth phase, osmoprotectants and nature Maximum recovery obtained Raoultella terrigena grown medium supplemented trehalose gluconate as gelling agent. Furthermore, dried containing Azospirillum brasilense presented 76% viable cells...