A5080191708- Proteins in Food Systems
- Pickering emulsions and particle stabilization
- Spectroscopy and Chemometric Analyses
- Surfactants and Colloidal Systems
- Supramolecular Self-Assembly in Materials
- Advanced Cellulose Research Studies
- Food composition and properties
- Polysaccharides Composition and Applications
- Polysaccharides and Plant Cell Walls
- Lipid Membrane Structure and Behavior
- Microencapsulation and Drying Processes
- Mineral Processing and Grinding
- Food Chemistry and Fat Analysis
- Nanocomposite Films for Food Packaging
- Meat and Animal Product Quality
- Identification and Quantification in Food
- Advanced Chemical Sensor Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Natural Fiber Reinforced Composites
- Lipid metabolism and biosynthesis
- Polydiacetylene-based materials and applications
- Electrospun Nanofibers in Biomedical Applications
- Hydrogels: synthesis, properties, applications
- Tissue Engineering and Regenerative Medicine
- Cyclone Separators and Fluid Dynamics
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
1998-2025
Biopolymères Interactions Assemblages
2012-2025
Centre National de la Recherche Scientifique
2007-2023
Laboratoire de Génie des Procédés – Environnement – Agro-alimentaire
2023
Institut National de la Recherche Agronomique
1996-2010
Laboratoire Léon Brillouin
2008
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2008
Université de Poitiers
2008
Laboratoire des Biomolécules
2004
Laboratoire de Chémo-biologie synthétique et thérapeutique
2000
Smart foams: Ultrastable foams with an optimal foamability are obtained using hydroxy fatty acids tubes (see picture). The stabilization results from the adsorption of monomers at air–water interface and presence in plateau borders. Upon heating, transform to micelles, leading foam destabilization thus first exhibit temperature-tuneable stability.
In this study, we investigate the interactions between cellulose surface and Ag nanoparticles (AgNPs) for purpose of manufacturing hybrid nanomaterials using bacterial nanocrystals (BCNs) as a model substrate. We focus on role BCN chemistry AgNP nucleation obtained by chemical reduction Ag+ ions. Homogeneous suspensions BCN/AgNP are produced, regardless whether BCNs quasi-neutral, negatively (TBCNs) or positively charged (ABCNs). The characterization hybrids identifies –OH groups points...
Exploring and deciphering the biodiversity of oil bodies (OBs) recovered from oilseeds are growing interest in preparation sustainable, natural healthy plant-based food products. This study focused on chia (Salvia hispanica L.) camelina (Camelina sativa seed OBs. A green refinery process including ultrasound to remove mucilage, aqueous extraction by grinding centrifugation recover OBs seeds was used. The microstructure, composition physical stability were examined. Confocal laser scanning...
We report the dispersions of a fatty acid and hydroxyl derivative salts in aqueous solutions that were further used to produce foams emulsions. The tetrabutyl-ammonium palmitic acid, 12-hydroxy stearic omega-hydroxy formed isotropic micelles, whereas ethanolamine same acids turbid birefringent lamellar solutions. structure dimension those phases confirmed by small-angle neutron scattering NMR. Micelles exhibited surprisingly small radius about 20 Å, even for acids, suggesting formation...
Unsaturated fatty acids may be extracted from various agricultural resources and are widely used as soaps in the industry. However, there also exist a large variety of saturated hydroxy nature, but their metal salts crystallize at room temperature water, hampering use biological chemical studies or for industrial applications. Addition guanidine hydrochloride (GuHCl) to sodium salt myristic acid has been shown prevent its crystallization forming stable flat bilayers temperature. Herein, we...
The binding of a cationic surfactant (hexadecyltrimethylammonium bromide, CTAB) to negatively charged natural polysaccharide (pectin) at air−solution interfaces was investigated on single and in foams, versus the linear charge densities polysaccharide. Besides classical methods investigate polymer/surfactant systems, we applied, for first time concerning these analogy between small angle neutron scattering by foams reflectivity films measure situ film thicknesses foams. CTAB/pectin foam are...
We report on dispersions of fatty acid-lysine salts in aqueous solutions which are further used to produce foams. The alkyl chain length is varied from dodecyl stearic. In solutions, the lysine salt yields an isotropic solution, probably micelles, whereas for longer chains, vesicles formed but crystallized upon resting at room temperature or when kept 4 degrees C. Solid-state NMR showed that acids embedded a lamellar arrangement passing gel fluid state heating; transition it occurs was...
Influence of low-methoxyl pectin (LM pectin) and calcium ions (3 mM) on mechanical behavior microstructure bovine serum albumin (BSA) gels (pH 6.8, in 0.1 M NaCl) was evaluated. Protein LM concentrations were fixed at 2, 4, 8 wt % 0.21, 0.43, 0.85 %, respectively. Rheological measurements confocal laser scanning microscopy coupled with texture image analysis by use the co-occurrence method performed. Heat treatment BSA/LM mixtures induced protein gelation a phase separation process between...
Bio-based aerogels containing cellulose nanofibrils (CNFs) are promising materials due to the inherent physical properties of CNF. The high affinity plant hemicelluloses (xyloglucan, xylan, pectin) is also an opportunity develop biomaterials with new properties. Here, we prepared from gelled dispersions CNFs and xyloglucan (XG) at different ratios by using a freeze-casting procedure in unidirectional (UD) non-directional (ND) manners. As showed rheology analysis, CNF CNF/XG behave as true...
Lytic polysaccharide monooxygenase (LPMO) enzymes have recently shaken up our knowledge of the enzymatic degradation biopolymers and cellulose in particular. This unique class metalloenzymes cleaves other recalcitrant polysaccharides using an oxidative mechanism. Despite their potential biomass saccharification fibrillation, detailed mode action LPMOs at surface fibers still remains poorly understood highly challenging to investigate. In this study, we first determined optimal parameters...
Preclinical data acquired for human muscle stem (hMuStem) cells indicate their great repair capacity in the context of injury. However, clinical potential is limited by moderate ability to survive after transplantation. To overcome these limitations, encapsulation within protective environment would be beneficial. In this study, tunable calcium-alginate hydrogels obtained through molding method using external or internal gelation were investigated as a new strategy hMuStem cell...
Ultrastabile Schäume mit optimaler Schäumbarkeit sind mithilfe von Hydroxyfettsäure-Röhren zugänglich (siehe Bild). Die Stabilisierung ist die Folge der Adsorption Monomeren an Luft-Wasser-Grenzfläche und dem Vorliegen Röhren in den Plateau-Grenzen. Beim Erwärmen gehen Micellen über, was zur Schaumdestabilisierung damit zu ersten Schäumen temperaturgesteuerter führt. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents peer-reviewed,...
The particle size distributions of wheat flours collected along a milling diagram were assessed. Nine varieties from the genetic trait Triticum aesticum vulgare and differing in hardness studied for two consecutive years. Break, sizing middling each at different stages an experimental mill, with all conditions being kept constant. measured 1·5 to 600 μm by using laser light diffraction apparatus. compared principal component analysis. method provided global synthetic comparison flour...