Search
Home page >  Model Foods

Developing model foods and food models, taking their complexity into account

food
© fotolia.com
The aim of the programme is to rationally create model foods and/or food models in order to understand the structure-property links at different scales within a sustainable food approach.

The model foods and the food models to be created should have different ultimate aims:

 
•    Functional (nutrition, sensory, bioavailability, etc.)
•    Product and/or process innovation base – reverse engineering
•    Sustainability – eco-design of products and processes 
•    Proof of concept
•    Genericity of reactions, transformations, etc. 
•    Cost optimisation
•    Development of the functionalities of raw materials without fractionation
 
Fields and expertise involved, technical means required  

•    Physical chemistry, biochemistry, microbiology, processes
•    Mathematics, statistics

Expertise required for addressing complexity
•    Multidisciplinary and integrated approaches  
•    Multi-partner projects
•    Experience with model food/food model dialogue  
•    Knowledge of sectors and applications  

Technical means
•    Manufacturing under realistic conditions, instrumentation
•    Analyses at all relevant time and space scales 
•    Powerful calculation tools, modelling   


The programme structure is presented below, along with the objectives of each of the three thematic axes   

Integrating variability and heterogeneity

Variability of the raw material –  characterisation, control and development
Process heterogeneity: using processes to innovate within a reverse engineering approach, adapting processes and products 

Reaction system dynamics

Obtaining information in real-time, coupling
Controlling transfers within processes
Identifying markers and monitoring their kinetic changes with sensor- or tracer-type tools
Obtaining a reaction scheme

Compartmentalisation of structured systems

Identifying relevant scales at which compartmentalisation occurs
Identifying concentrated systems and the laws that govern behaviours: continuity and discontinuity, homogeneity and heterogeneity
Understanding the behaviour of solutes (water, gas, etc.) in discontinuous environments 


A cross-disciplinary "eco-design" approach that integrates the results of the three axes    

Eco-designing products and processes, taking the overall "system" into account


The programme will benefit from experience acquired within the dvision in terms of model development:

 
•    Typology of models used in recent projects

Liquid phase plus fat (emulsions, etc.)
Solid phase plus fat (cheese matrices)
Cellular and intrinsically structured solids
Liquids, powders
Proteins in solution

•    Typology of issues considered

Reactivity
Supramolecular edifices of biomolecules
Construct and deconstruct
How to model?

•    Obstacles/difficulties to eliminate

Transformation dynamics: reaction, kinetics, transfer/reaction coupling; structuring, system biology/process coupling; on-line measurements, quantitative measurements
What relevant generic model? At what scale?
Non-reproducibility of models due to variations in raw materials
Often excessive preparation time for complex models
 

The platforms, facilities, equipment, tools and databases of the Division available for the programme





Writing: MA
Creation date: 26 July 2011
Update: 14 September 2012
Contact: Camille Michon, Food Process and Engineering (GENIAL) INRA Agroparistech Massy
Catherine Renard, Safety and Quality of Plant Products INRA - Université d'Avignon et de Pays des Vaucluse

camille.michon@agroparistech.fr


catherine.renard@avignon.inra.fr