HAL Id: hal-02098697
https://hal.archives-ouvertes.fr/hal-02098697
Submitted on 5 Jun 2020
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Designing innovative technological routes for the production and stabilization by drying of protein fractal
assemblies
Domitille de Guibert
To cite this version:
Domitille de Guibert. Designing innovative technological routes for the production and stabilization by drying of protein fractal assemblies. STLOpendays, Institut National de Recherche Agronomique (INRA). UMR UMR INRA / AgroCampus Rennes : Science et Technologie du Lait et de l’?uf (1253)., Mar 2019, Rennes, France. �hal-02098697�
1. Designing of a pilot line to produce fractal aggregates (radius > 50 nm)
• Influence of process conditions on functionnal properties of aggregates.
• Technological choice for process sturdiness, performance and reproducibility.
2. Characterization of aggregates properties
• Size, shape and state diagram of fractal aggregates.
• Understanding of the relation between structure and properties of aggregates.
3. Concentration and stabilization by drying of fractal aggregates
• Knowledge of the fractal aggregates perfomance in relation to concentration, spray drying and redispersibility.
• Knowledge of limiting mechanisms of drying kinetic to choose the type of ingredient : powder or preconcentrated liquid.
Designing innovative technological routes for the production and stabilization by
drying of protein fractal assemblies
Expected results
Research perspectives Research questions
• At pilot scale, is it possible to modulate the characteristics of fractal aggregates thanks to process parameters (flow regime, heating temperature, heating residence time), in relation to different transport phenomena (heat, momentum, mass)?
• Is it possible to stabilize fractal aggregates produced at pilot scale by spray drying?
Socio-economic & scientific context
• Use assemblies as new ingredient to replace additives in existing dairy products.
• Design new dairy products in the long term thanks to the techno-functional properties of fractal aggregates.
Funding
Collaborators
Domitille de GUIBERT
Scholarship : Regional councils of Brittany and Pays de la Loire
•
2016-2019
UMR INRA - Agrocampus Ouest Science and Technology of Milk and Eggs
Team Spray-Drying - Concentrated Matrices - Functionalities
Key words Whey protein Aggregates Scale-up Drying Dairy
Nowadays, fractal aggregates are produced at lab scale.
It’s necessary to scale up the process in order to produce fractal aggregates as dairy ingredient.
