Intelligente verpakking: nieuwe mogelijkheden via optische sensoren?

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1 Intelligente verpakking: nieuwe mogelijkheden via optische sensoren? Dr. ir. An Vermeulen Dr. ir. Danaë Delbeke Prof. dr. ir. Peter Ragaert Universiteit Gent 8 november 2012 Leuven

2 Filling systems Gasses INDUSTRY 65 members Distribution Food products What is Pack4Food? Packaging materials Resins Advices Training RESEARCH INSTITUTES/ NETWORK ORGANISATIONS Research Networking Filling System -standard -clean -ultraclean -Hot fill -Aseptic -In packaging -MAP Food products -composition -ph -aw Shelf-life -chemical -microbiological -physical Sustainability Packaging material -barrier -active -passive -closure systems

3 MAP O 2 -absorbers Migration Antimicrobial systems Trends in food packaging Recycling Healthy and tasty Barrier packaging Sustainability CONSUMENT Convenience Bioplastics Conscious and demanding Heat resistance Intelligent packaging Transparancy

4 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 e.g. Time-Temperature Indicators (TTI) active packaging: Intended to extend the shelf-life of packaged food Or To maintain or improve the condition of packaged food e.g. Oxygen absorbers

5 Types of intelligent packaging In general: two types 1. Measuring the condition of the package on the outside 2. Measuring directly the quality of the food product inside the packaging

6 Extension of functionality of food packaging Containment Related with mechanical properties Protection Against external factors Convenience easy-to-use Marketing Providing information Added value by intelligent materials Leak detection systems Leak detection systems Quality indicators Time/Temperature indicators Thermochromic inks RFID LED in food packaging Holographic Images

7 Link with functionality of food packaging Containment Related with mechanical properties Protection Against external factors Convenience easy-to-use Marketing Providing information Added value by intelligent materials Leak detection systems Leak detection systems Quality indicators Time/Temperature indicators Thermochromic inks RFID LED in food packaging Holographic Images

8 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)

9 Ripesense Quality indicators

10 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

11 Quality indicators Quality indicators for a group of spoilage indicating components?

12 O 2 -indicators Ageless Eye Leak detection systems

13 Leak detection systems Actually measuring the O 2 -concentration: example Oxysense On-line detection system for CO 2? Photo: Oxysense

14 Project proposal Integrated optical sensors in food packaging

15 Project proposal MAP-packages of food products (e.g. meat, fish, vegetables, ) Integration optical sensors with specific coating for Adsorption and detection of volatile compounds in packages of food products Adsorption and detection of CO 2 in packages of food products Fast, accurate and non-destructive analysis of quality packaged food products ánd of integrity packaging concept (leak detection)

16 Project proposal Optical sensors for integration in food packaging Extremely cheap optical sensor With multiplexed sensing capabilities (specificity!!) To be read out contactless by laser/led beam

17 Wavelength shift resonance wavelength shift [nm] Adsorption gas sensor Intensiteit [A.U.] Wavelength Golflengte [nm] Project proposal Golflengte [nm] m Time trace adsorption reference level Time Verschuiving [nm] X100 s on a single chip!! Concentration measurement avidin concentration [μg/ml] Concentration

18 Project proposal: why silicon photonics optical sensor? Cheap (CMOS-technology): order eurocent Extremely small: mm 2 Non-contact: read-out through package foil Signal of sensor not visible for consumer Sensitive and (!) specific Sensitive: optical resonant phenomena Specific: dense integration of dozens of resonators

19 Project proposal Project proposal to be submitted to IWT in the framework of SBO Strategisch Basis Onderzoek Deadline: 7th of January 2013 Participation companies to users group Follow up developments project in first line Possibility to steer the project Based on obtained results, valorisation projects will be submitted

20 More information? Project proposal Pack4Food Plateau Coupure Links 653 Sint-Pietersnieuwstraat Gent 9000 Gent Tel: tel: peter.ragaert@ugent.be danae.delbeke@ugent.be

21 Pack4Food VZW Coupure Links Gent Tel: +32 (0) Tel: +32 (0) Dare to innovate in food packaging! Partner of - Member of:

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