Véronique Vie - Academia.edu (original) (raw)

Papers by Véronique Vie

Research paper thumbnail of Integrated photonic devices for sensing application

Research paper thumbnail of Deep eutectic solvents as extraction media for polar bioactives from wheat bran

Agritrop (Cirad), Nov 4, 2017

Research paper thumbnail of Interfacial adsorption and activity of pancreatic lipase-related protein 2 onto heterogeneous plant lipid model membrane

Research paper thumbnail of On the detection of nanoparticle cloud migration by a resonant photonic surface signal towards sedimentation velocity measurements

Research paper thumbnail of Eaux gélifiées pour personnes âgées: liens entre propriétés rhéologiques et perception sensorielle

HAL (Le Centre pour la Communication Scientifique Directe), Oct 26, 2022

Research paper thumbnail of Gelled waters for elderly persons: rheological characterization and sensorial analysis

HAL (Le Centre pour la Communication Scientifique Directe), Jan 31, 2023

Research paper thumbnail of Interfacial adsorption and lipolysis behavior of gPLRP2 onto natural lipid membrane extracts from microalgae Chlorella vulgaris, walnuts, and almonds

HAL (Le Centre pour la Communication Scientifique Directe), Jan 18, 2023

Research paper thumbnail of Enzymatic digestion of heterogeneous plant galactolipid assemblies by pancreatic lipase related-protein 2 (PLRP2)

HAL (Le Centre pour la Communication Scientifique Directe), Jan 18, 2023

Research paper thumbnail of Detection of Approaching Nanoparticle Clouds Using a Resonant Photonic Surface Signal: Measurements of Sedimentation Rate

Research paper thumbnail of Modulation of gastric lipase adsorption onto mixed galactolipid-phospholipid films by addition of phytosterols

Colloids and Surfaces B: Biointerfaces

Research paper thumbnail of Storming through plant biodiversity to extract oleosomes for sustainable food applications

HAL (Le Centre pour la Communication Scientifique Directe), Sep 26, 2021

Research paper thumbnail of Digestibility and oxidative stability of plant lipid assemblies: An underexplored source of potentially bioactive surfactants?

Critical Reviews in Food Science and Nutrition

Research paper thumbnail of Puiser dans la biodiversité des graines pour en extraire des oléosomes aux fonctionnalités contrastées et adaptées aux systèmes alimentaires durables

HAL (Le Centre pour la Communication Scientifique Directe), Oct 25, 2021

Research paper thumbnail of Interfacial adsorption of gastrointestinal lipases onto heterogenous biomimetic vegetal membranes

HAL (Le Centre pour la Communication Scientifique Directe), May 1, 2022

Research paper thumbnail of A multi-scale approach of the foaming and emulsifying properties of Soybean co-products : comparisons and synergy with protein solutions

HAL (Le Centre pour la Communication Scientifique Directe), Jul 9, 2022

Research paper thumbnail of What are the mechanisms of gastrointestinal lipases adsorption onto heterogenous biomimetic vegetal membranes?

HAL (Le Centre pour la Communication Scientifique Directe), May 3, 2022

Research paper thumbnail of Valorisation de coproduits de soja : propriétés fonctionnelles et liens entre rhéologie interfaciale et volumique

HAL (Le Centre pour la Communication Scientifique Directe), Oct 26, 2022

Research paper thumbnail of Determination of Stokes velocities and sedimentation rate by a photonic resonant surface signal

Optical Sensors 2021

The sedimentation of solid particles in a liquid is a physical phenomenon that necessitate to be ... more The sedimentation of solid particles in a liquid is a physical phenomenon that necessitate to be well understood and measured in several cases. In medical diagnosis, a knowledge of the sedimentation speed of red blood cells for example, allows the early diagnosis of various inflammations. In study, optical Micro-Resonators (MRs) are used as sensors to track the dynamical phenomenon of sedimentation of a cloud of nano-particles in water, and the associated consequences on the spectral characteristics of the guided mode are analyzed. A MR is characterized by its eigenvalue, namely the effective index of an optical mode propagating inside. A progressive modification of the environment thus induces a temporal variation of the effective index. Such a variation can be measured by the tracking of the Free Spectral Range (FSR) of the transduced spectra against time. The transduced optical signal is then directed towards an Optical Spectrum Analyzer (OSA) from which spectra are acquired against time. A millimeter tank filled with water is judiciously deposited on the surface of the chip, before the adding of the solution of nano-particles. The spectra are acquired during the whole duration of the process of sedimentation. The data collected this way are then compared to a simple theoretical model describing the sedimentation of a spherical particle in water. Moreover, the sedimentation theory and the derivation of the speed of sedimentation of a spherical particle is presented, plus the presentation of the experimental setup, from the fabrication of the photonic structure by photolithography, to the inclusion of this circuit in an optical characterization platform and the presentation of the data acquisition and treatment program. The experimental results are analyzed and discussed. The differences are around 10% over the theoretical Stokes velocities relating to such sedimentation process. An overall generic curve or spectral response is clearly demonstrated on these sedimentation processes.

Research paper thumbnail of Effect of Processing and Fat Content on the Oxidative Stability and Interfacial Behavior of Tree Nut Oil-bodies

Proceedings of 2022 AOCS Annual Meeting & Expo

Oil bodies (OB) are the natural form of energy storage in oilseeds. They consist of a triacylglyc... more Oil bodies (OB) are the natural form of energy storage in oilseeds. They consist of a triacylglyceride core stabilized by proteins (mainly oleosins) embedded in a phospholipid membrane. In some tree nut species, OB contain an important amount of polyunsaturated fatty acids that make them interesting food ingredients but prone to oxidation. Due to the growing interest in minimally-processed nut-based beverages, the understanding and the preservation of the physico-chemical properties of these lipoprotein assemblies are of great interest. In this context, previous interfacial studies have led to the proposition of a new model of adsorption for minimally-processed OB that is useful to design functional emulsion or foam in which OB act as emulsifiers. The objective of the present study was to determine the impact of processing and fat content on the physico-chemical behavior of tree nut-based matrixes. The interfacial and oxidative behaviors of minimally-processed isolated OB were compa...

Research paper thumbnail of Exploring Plant Biodiversity to Extract Oil Bodies for Sustainable Food Applications

Proceedings of 2022 AOCS Annual Meeting & Expo

Oleoproteaginous and cereal seeds enclose a wide range of nutriments such as lipids, proteins, po... more Oleoproteaginous and cereal seeds enclose a wide range of nutriments such as lipids, proteins, polysaccharides and various mineral and organic micronutrients. These nutrients are found under the form of natural assemblies such as oil or protein bodies or starch granules, that have interesting functionalities (micronic sizes, surface activity, high physicochemical stability, etc.). These assemblies are extracted by various processes using energy, organic solvents, steam, alone or in combination. Thus, their natural structures are often strongly damaged, and some of their functionalities disappear. Storming through natural assemblies’ biodiversity to address the societal demand for more natural and minimally-processed food, seems promising. Indeed, the soft extraction of such assemblies could be an alternative to traditional intensive fractionation methods of plant raw materials to isolate target ingredients (sucrose, starch, refined oils, etc.). This would allow energy savings and av...

Research paper thumbnail of Integrated photonic devices for sensing application

Research paper thumbnail of Deep eutectic solvents as extraction media for polar bioactives from wheat bran

Agritrop (Cirad), Nov 4, 2017

Research paper thumbnail of Interfacial adsorption and activity of pancreatic lipase-related protein 2 onto heterogeneous plant lipid model membrane

Research paper thumbnail of On the detection of nanoparticle cloud migration by a resonant photonic surface signal towards sedimentation velocity measurements

Research paper thumbnail of Eaux gélifiées pour personnes âgées: liens entre propriétés rhéologiques et perception sensorielle

HAL (Le Centre pour la Communication Scientifique Directe), Oct 26, 2022

Research paper thumbnail of Gelled waters for elderly persons: rheological characterization and sensorial analysis

HAL (Le Centre pour la Communication Scientifique Directe), Jan 31, 2023

Research paper thumbnail of Interfacial adsorption and lipolysis behavior of gPLRP2 onto natural lipid membrane extracts from microalgae Chlorella vulgaris, walnuts, and almonds

HAL (Le Centre pour la Communication Scientifique Directe), Jan 18, 2023

Research paper thumbnail of Enzymatic digestion of heterogeneous plant galactolipid assemblies by pancreatic lipase related-protein 2 (PLRP2)

HAL (Le Centre pour la Communication Scientifique Directe), Jan 18, 2023

Research paper thumbnail of Detection of Approaching Nanoparticle Clouds Using a Resonant Photonic Surface Signal: Measurements of Sedimentation Rate

Research paper thumbnail of Modulation of gastric lipase adsorption onto mixed galactolipid-phospholipid films by addition of phytosterols

Colloids and Surfaces B: Biointerfaces

Research paper thumbnail of Storming through plant biodiversity to extract oleosomes for sustainable food applications

HAL (Le Centre pour la Communication Scientifique Directe), Sep 26, 2021

Research paper thumbnail of Digestibility and oxidative stability of plant lipid assemblies: An underexplored source of potentially bioactive surfactants?

Critical Reviews in Food Science and Nutrition

Research paper thumbnail of Puiser dans la biodiversité des graines pour en extraire des oléosomes aux fonctionnalités contrastées et adaptées aux systèmes alimentaires durables

HAL (Le Centre pour la Communication Scientifique Directe), Oct 25, 2021

Research paper thumbnail of Interfacial adsorption of gastrointestinal lipases onto heterogenous biomimetic vegetal membranes

HAL (Le Centre pour la Communication Scientifique Directe), May 1, 2022

Research paper thumbnail of A multi-scale approach of the foaming and emulsifying properties of Soybean co-products : comparisons and synergy with protein solutions

HAL (Le Centre pour la Communication Scientifique Directe), Jul 9, 2022

Research paper thumbnail of What are the mechanisms of gastrointestinal lipases adsorption onto heterogenous biomimetic vegetal membranes?

HAL (Le Centre pour la Communication Scientifique Directe), May 3, 2022

Research paper thumbnail of Valorisation de coproduits de soja : propriétés fonctionnelles et liens entre rhéologie interfaciale et volumique

HAL (Le Centre pour la Communication Scientifique Directe), Oct 26, 2022

Research paper thumbnail of Determination of Stokes velocities and sedimentation rate by a photonic resonant surface signal

Optical Sensors 2021

The sedimentation of solid particles in a liquid is a physical phenomenon that necessitate to be ... more The sedimentation of solid particles in a liquid is a physical phenomenon that necessitate to be well understood and measured in several cases. In medical diagnosis, a knowledge of the sedimentation speed of red blood cells for example, allows the early diagnosis of various inflammations. In study, optical Micro-Resonators (MRs) are used as sensors to track the dynamical phenomenon of sedimentation of a cloud of nano-particles in water, and the associated consequences on the spectral characteristics of the guided mode are analyzed. A MR is characterized by its eigenvalue, namely the effective index of an optical mode propagating inside. A progressive modification of the environment thus induces a temporal variation of the effective index. Such a variation can be measured by the tracking of the Free Spectral Range (FSR) of the transduced spectra against time. The transduced optical signal is then directed towards an Optical Spectrum Analyzer (OSA) from which spectra are acquired against time. A millimeter tank filled with water is judiciously deposited on the surface of the chip, before the adding of the solution of nano-particles. The spectra are acquired during the whole duration of the process of sedimentation. The data collected this way are then compared to a simple theoretical model describing the sedimentation of a spherical particle in water. Moreover, the sedimentation theory and the derivation of the speed of sedimentation of a spherical particle is presented, plus the presentation of the experimental setup, from the fabrication of the photonic structure by photolithography, to the inclusion of this circuit in an optical characterization platform and the presentation of the data acquisition and treatment program. The experimental results are analyzed and discussed. The differences are around 10% over the theoretical Stokes velocities relating to such sedimentation process. An overall generic curve or spectral response is clearly demonstrated on these sedimentation processes.

Research paper thumbnail of Effect of Processing and Fat Content on the Oxidative Stability and Interfacial Behavior of Tree Nut Oil-bodies

Proceedings of 2022 AOCS Annual Meeting & Expo

Oil bodies (OB) are the natural form of energy storage in oilseeds. They consist of a triacylglyc... more Oil bodies (OB) are the natural form of energy storage in oilseeds. They consist of a triacylglyceride core stabilized by proteins (mainly oleosins) embedded in a phospholipid membrane. In some tree nut species, OB contain an important amount of polyunsaturated fatty acids that make them interesting food ingredients but prone to oxidation. Due to the growing interest in minimally-processed nut-based beverages, the understanding and the preservation of the physico-chemical properties of these lipoprotein assemblies are of great interest. In this context, previous interfacial studies have led to the proposition of a new model of adsorption for minimally-processed OB that is useful to design functional emulsion or foam in which OB act as emulsifiers. The objective of the present study was to determine the impact of processing and fat content on the physico-chemical behavior of tree nut-based matrixes. The interfacial and oxidative behaviors of minimally-processed isolated OB were compa...

Research paper thumbnail of Exploring Plant Biodiversity to Extract Oil Bodies for Sustainable Food Applications

Proceedings of 2022 AOCS Annual Meeting & Expo

Oleoproteaginous and cereal seeds enclose a wide range of nutriments such as lipids, proteins, po... more Oleoproteaginous and cereal seeds enclose a wide range of nutriments such as lipids, proteins, polysaccharides and various mineral and organic micronutrients. These nutrients are found under the form of natural assemblies such as oil or protein bodies or starch granules, that have interesting functionalities (micronic sizes, surface activity, high physicochemical stability, etc.). These assemblies are extracted by various processes using energy, organic solvents, steam, alone or in combination. Thus, their natural structures are often strongly damaged, and some of their functionalities disappear. Storming through natural assemblies’ biodiversity to address the societal demand for more natural and minimally-processed food, seems promising. Indeed, the soft extraction of such assemblies could be an alternative to traditional intensive fractionation methods of plant raw materials to isolate target ingredients (sucrose, starch, refined oils, etc.). This would allow energy savings and av...