Packaging Logisticsneutronfood.tudelft.nl/Olson.pdf · Lund University / Faculty of Engineering LTH...
Transcript of Packaging Logisticsneutronfood.tudelft.nl/Olson.pdf · Lund University / Faculty of Engineering LTH...
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Lund University / Faculty of Engineering / Packaging Logistics / 2011/ Annika Olsson
Packaging Logistics
Annika Olsson
www.plog.lth.se
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Why packaging for food? Important roles
• Protects Tight materials
Strong materials
Undesirable transfers
• Keeps shelf life Tight
Modified atmospheres
• Information New sensors
Intelligence
• Makes it convenient Easy to open
Easy to reclose
Easy to use
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Tight, light and strong materials
Carbohydrate + Protein +
Lipids + Vitamin +
Mineral + Pigment + Water +
Enzyme + Aroma
Micropores – tight seal?
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Shelf Life – tight packaging
Degrades food
• Temperature
• Light
• O2
Protects food
• N2
• CO2
• Anti microbiological surfaces
Difference in partial pressure, DP, is the driving force for
gas movements in and out of the package
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
But also breathing material –
semipermeable films
Packaging of fruit and vegetables can increase shelf life
1-7 days compared to unpacked fruit
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Modified and controlled atmosphere
Permeability of
plastic
becomes more
important to
control
No taste of deterioration
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Combined materials - barriers
Designed barriers for
• O2, CO2, N2
• Water
• Light
• Odour & taste
• Organisms • Glass
• Plastic
• Metal
• Paper
• Minerals
• Wax
• Biopolymers new how does it work?
• Nano? new how does it work?
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Barrier challenges
Micropores
Delamination
New biomaterial interactions
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Permeability of components
Migration of components from packaging material
Gas/Smell/Light transmission
Absorption of components
Undesired transfers
interesting to know more about
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
New biomaterial – neutrons?
• Biobased material
biological origin or
refined biological raw
material
Orientation
Cross-bindings
Co-polymerization
Crystalizaton
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Usability
• Easy to open Materials easy to tear
• Easy to use Suitable surfaces
• Possible to empty Suitable surfaces
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Treated for superhydrofobization
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Sensors
Electronic ink – how does it affect food and material?
Sensors integration with food?
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson
Approvals and acceptance
FDA and EFSA
How can new materials be tested and approved?
Implications on interaction between material and food
How can material get consumer acceptance?
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Lund University / Faculty of Engineering LTH / Packaging Logistics / 2011/Annika Olsson