xygen scavenging “active label · cost action fp1405 active and intelligent fibre-based packaging...
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COST Action FP1405Active and intelligent fibre-based packaging –innovation and market introduction
OXYGEN SCAVENGING
“ACTIVE LABEL”
Bettina Röcker, Nadine Rüegg, Prof. Dr. Selçuk Yildirim
Zurich University of Applied Sciences, Wädenswil, SwitzerlandInstitute of Food and Beverage InnovationFood Packaging Research Group
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INTRODUCTION – OXYGEN SCAVENGER
Growth of aerobic microorganisms
Oxidation
Discolorationand rancidity
Moulds and otherSpoilage organisms
Degraded appearance and nutritional value
Impaired sensory qualities
Lost freshness, unpleasant taste and aroma
Reduced Shelf life
O2
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INTRODUCTION – OXYGEN SCAVENGER
Challenge:
Despite modified atmosphere packaging (MAP) or gas flushing
Up to 0.5-5 % residual oxygen
Negative effect on food quality and shelf life
6
Oxygen Scavenger
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OXYGEN SCAVENGING «ACTIVE LABEL»
H2 + ½ O2 H2OPd
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FUNCTIONAL PRINCIPLE «ACTIVE LABEL»• MAP standard procedure
N2 H2Active Label
Food
Lidding film
O2 O2O2
H2 + ½ O2 H2OPd
N2N2N2
H2 H2
Food
O2 O2
N2 H2 H2H2ON2 O2 N2
Food
N2 N2N2
N2N2
• Limitation «Active Label»:
Max. 2.5% residual O2
• Condition:
H2 in MAP included
• Application «Active Label»
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DEVELOPMENT “ACTIVE LABEL”
Pd-coating on different substrates SiOx/Pd-coating on the same substrates
oxygen scavenging
activity
~3x higher
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“ACTIVE LABEL” PROTOTYPE
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OXYGEN SCAVENGING “ACTIVE LABEL”
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OXYGEN SCAVENGING “ACTIVE LABEL”
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BENEFITS «ACTIVE LABEL»
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PUBLICATIONS “ACTIVE LABEL”Technical Development of “ACTIVE LABEL”
Food Application of “ACTIVE LABEL”
To be submitted:
Application of palladium-based oxygen scavenger to extend the mould-free shelf life of bakery products
Nadine Rüegg, Bettina Röcker, Selçuk Yildirim*
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Thank you for your attention
Bettina Röcker, Nadine Rüegg, Prof. Dr. Selçuk Yildirim