Post on 02-Feb-2018
Sensors in food packaging: technology and possibilities
Prof. dr. ir. Peter Ragaert
Pack4Food vzw
26 oktober 2012
Het Pand - Gent
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
What is Pack4Food?
INDUSTRY
65 members
RESEARCH INSTITUTES/
NETWORK ORGANISATIONS
Food products-composition
-pH-aw
Filling System-standard
-clean-ultraclean
-Hot fill-Aseptic
-In packaging-MAP
Shelf-life-chemical-microbiological-physical
SustainabilityNetworking
Packaging material-barrier
-active-passive
-closure systems
Filling systems
Resins
Packagingmaterials
Gasses
Food products
Distribution
Advices
Training
Research
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Trends in food packaging
CONSUMENT
Sustainability
Conscious and demanding
Convenience
Healthy
and tasty
BioplasticsRecycling
MAPO2-absorbers
Antimicrobial
systems
Intelligent
packaging
Transparancy
Heat resistanceBarrier
packaging
Migration
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Intelligent packaging(Def. EU 1935/2004 and EU 450/2009)
• Intelligent materials and articles:– They monitor the condition of the packaged food
or the environment surrounding the food
– No changes in characteristics of food products
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Intelligent packaging
≠ active packaging:– Intended to extend the shelf-life of packaged food
Or
– To maintain or improve the condition of packagedfood
≠ smart packaging: – Collective term ‘active and/or intelligent’
– Example: Gizmo
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Intelligent packaging
• Extension of communication function of traditional packaging
• Communicates information to consumersbased on its ability to sense, detect, or record external or internal changes in the product’senvironment
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Requirements of intelligent packaging
• Reliability:
– Link between signal and quality food product
– Irreversible signal
– Sensitive ánd specific
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Requirements of intelligent packaging
• Economical/logistic aspects
– Cheap
– Easy-to-read and unambiguous
– Easy-to-integrate in production chain
• Applied as sachet
• Applied as label
• Applied as integral part of packaging material
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Requirements of intelligent packaging
• Safe
– Deliberate interaction with food and/orenvironment!
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Types of intelligent packaging
In general: two types
1. Measuring the condition of the package onthe outside
2. Measuring directly the quality of the foodproduct inside the packaging
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Link with functionality of food packaging
• Containment
– Related with mechanical properties
• Protection
– Against external factors (e.g. O2, H2O, light)
• Convenience
– “easy-to-use”
• Marketing
– Providing information
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Link with functionality of food packaging
• Containment
– Related with mechanical properties
• Protection
– Against external factors
• Convenience
– “easy-to-use”
• Marketing
– Providing information
Leak detection systems
Added value by intelligent materials
Leak detection systemsQuality indicatorsTime/Temperature indicators
Thermochromic inksRFID
LED in food packagingHolographic Images
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Link with functionality of food packaging
• Containment
– Related with mechanical properties
• Protection
– Against external factors
• Convenience
– “easy-to-use”
• Marketing
– Providing information
Leak detection systems
Added value by intelligent materials
Leak detection systemsQuality indicators
Time/Temperature indicators
Thermochromic inksRFID
LED in food packagingHolographic Images
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Time-Temperature Indicators (TTI)
• Integrating exposure of packaged food with time and temperature (t x T)
• Colour changes due to mechanical, chemical, electrochemical, enzymatic or microbiological reaction
TempTime
OnVu
http://www.onvu.com/ http://www.innolabel.eu/Innolabel
http://www.temptimecorp.com/
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Time-Temperature Indicators (TTI)
• Applications
– Monitoring cold chain
– Monitoring product quality: Importance of thorough knowledge of microbiological and chemical quality loss in the food product in function of temperature during development of TTI’s
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Link with functionality of food packaging
• Containment
– Related with mechanical properties
• Protection
– Against external factors
• Convenience
– “easy-to-use”
• Marketing
– Providing information
Leak detection systems
Added value by intelligent materials
Leak detection systems
Quality indicatorsTime/Temperature indicators
Thermochromic inksRFID
LED in food packagingHolographic Images
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Quality indicators
• Colour change depending on changes in quality of the food product– Flavour components, ethylene,…
– Microbiological metabolites,…
• Not much commercial applications
• Lots of research/patents
• Focus on:– Following up ripening processes (e.g. fruits)
– Following up amine-production (e.g. fish)
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Quality indicators
• Ripesense ®
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Quality indicators
• SensorQ™ (Food Quality Sensor International / DSM)– pH-sensing technology (based on anthocyanines)
– Detects freshness/spoilage level of packed meat and poultry by reacting with biogenic amines from microbiological origin
– Label
– Orange-colored center in ‘Q’ turns dark
green if meat is spoiled
Photo: PackWorld.com
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Quality indicators
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Link with functionality of food packaging
• Containment
– Related with mechanical properties
• Protection
– Against external factors
• Convenience
– “easy-to-use”
• Marketing
– Providing information
Leak detection systems
Added value by intelligent materials
Leak detection systemsQuality indicatorsTime/Temperature indicators
Thermochromic inksRFID
LED in food packagingHolographic Images
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Leak detection systems
• O2-indicators
– Ageless Eye®
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Leak detection systems
• Actually measuring the O2-concentration: example Oxysense
Photo: Oxysense
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Link with functionality of food packaging
• Containment
– Related with mechanical properties
• Protection
– Against external factors
• Convenience
– “easy-to-use”
• Marketing
– Providing information
Leak detection systems
Added value by intelligent materials
Leak detection systemsQuality indicatorsTime/Temperature indicators
Thermochromic inksRFID
LED in food packagingHolographic Images
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Thermochromic inks
• Inks sensitive to temperature changes
• e.g. change in colour or appear/disappear at the moment the optimal temperature has been reached
Smart Lid Systems (Sydney, Australia)
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Flexible electronis in
packaging materials? Information product via mobile phone
Source: MIT Media lab
LED-lights in
packaging?
LED in food packaging
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
RFIDRadio Frequency Identification Tags
Foto: Fraunhofer
Foto: foodylife.com
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Legislative aspects
• Commission regulation (EC) 450/2009 on activeand intelligent materials and articles intended to come into contact with food– Article 3: definitions
• Active and intelligent materials• Functional barriers• Released active substances
– Article 4: refers to:• Regulation (EC) 1935/2004 (materials and articles intended to come into
contact with food)• Regulation (EC) 450/2009
– Article 5: Community list– Article 11: Labelling– Article 12: Declaration of compliance and documentation
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Global market of intelligent packaging
• Intelligent packaging represents globally a $1.4 billion segment in 2008, increasingto $2.3 billion over the next five years
Source: Restuccia et al. 2010. Food Control, 21, 1425-1435
Sensors in food packaging © 2012 – Peter Ragaert26 oktober 2012
Global market of intelligent packaging
• Barriers towards intelligent packaging
– Costs
– Recyclability of packaging
– Retailer ánd consumer acceptance
Source: Restuccia et al. 2010. Food Control, 21, 1425-1435
Pack4Food VZWCoupure Links 653
9000 Gent
Tel: +32 (0)9 264 99 30 Tel: +32 (0)9 264 99 39
www.Pack4Food.be
Dare to innovatein food packaging!
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