Members ：宋强 高正 夏海燕
Different Aspects：
Food Safety and
Quality
Ingredient Technologies &
Systems
Food Processing
Food Packaging
And the futrue...
What is nanotechnology ?
nanocomposites ?
Nanotechnology …
… deals with nanomaterials and nanosystems commonly
smaller than 100 nanometers
Nanocomposite = matrix + nanoloads (small

particles)
For nanocomposite, numerous definitions exist but one
characteristic remains common : the nanometric size of
nanoloads in the matrix
Food safety and
quality
• Sensors with single molecule
detection capabilities
(Nanotongues
and Nano-noses)
• Nano-structures interacting
with microbial cells
• Preservative carrier systems
Ingredient Technologies & Systems
• Nanoparticle Utilization
• Flavors, Antioxidants, Antimicrobials,
Bioactives etc.
Nanotechnology in Food
Processing
Nanofiltration – Molecular Separation
Technologies
Nanotechnology in Food
Processing
Nanotechnology in Food
Processing
Nanotechnology in Food
Processing
Biopolymers breakdown (starch
hydrolysis)
Reduce haziness and density
Improve flavor
Add nutritional value
Product development
Texture control
Nanotechnology in Food
Packaging
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Protect the food from contamination
to preserve its quality and shelf-life
- Prevent microbial contamination
- Chemical contamination
- Oxygen
- Water vapor
- Light
Interest of the nanocomposites for packaging
Interest of the nanocomposites for packaging
 decrease permeability to gases
 increase shelf-life
The shelf-life could be
increased from 8 to 14 days
 strengthen mechanical
resistance
Mechanical resistance reinforce
up to 50%
 enhance temperature
resistance
Higher temperature capability
(reduced flamability)
Molding better plastics with clay
• Superplastics. Plastic
polymers are
• combined with clay
nanoparticles
• to create a stronger,
cleaner,
• more flame-resistant
material.
Clay Nanocomposites
• Based on clay
- montmorillonite
-Nylon
• Improve barrier
properties
Active & Intelligent Packaging
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Active Packaging: actively changes the conditions of
the packaged food to extend shelf-life or to improve
food safety and quality
Intelligent Packaging: Monitors the conditions of
packaged food products and gives information about
their safety and quality during transport and storage
Packaging applications
Industrial development
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Example 1 : Durethan® / BASF Co. &
Nanocor Co.
PA6 + nanoclay : O2 barrier +50% vs PA6
 films, can be used in brik packaging
for juices
Example 2 : Imperm / Mitsubishi Gas
Chemical & Nanocor Co.
N-MXD6 : excellent gas barrier
N-MXD6 + nanoload : O2 barrier +80% vs
N-MXD6
 appropriated for films and multilayer
bottle, beer bottle
 should replace EVOH layer in
ketchup bottle
And the future…
• 1. Technical outlook
• The nanocomposites have their own technical limits. The
nanocomposite development is linked to :
•  1st factor :
•
the understanding of the mechanisms to control the size, the
homogeneous dispersion & distribution of nanoloads in
polymer matrix
which give their specific properties to the
nanocomposite
•  2nd factor :
•
the capacity to develop industrial processes allowing the
control of the
dispersion and distribution state of the
nanoloads => mass production
and cost drop
• The nanocomposites arouse numerous hopes thanks to their high
potential
And the future…
• 2. Economic outlook
World incom e generated by nanotechnologies (in billion Euros)
1200
1000
1000
800
700
600
400
200
40
0
2001
2008
2010-2015
And the future…
2. Economic outlook
Distribution in % of the global econom ic im pact of nanotechnologies in 2010
P harmaceuticals;18%
Electro nics;30%
Chemistry
(nano structured
catalyst); 10%
Transpo rts
(nano materials,
nano electro nics); 7%
Others; 1%
Nano materials; 34%
Conclusions
• Nanotechnology is part of our future
• Developments in nanotechnology have
• an undisputable potential that will
• benefit society
• Although applications of nanotechnology
• to the food system are yet at an
• embryonic age, “there is still plenty of
• room” for us at the bottom to make and
• deliver better foods
• Be open about benefits and risks