intelligent pckg
DESCRIPTION
ppt presentation on intelligent packaging as of 2009TRANSCRIPT
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Intelligent Packaging
packaging that contains an external or internal indicator to provide information about aspects of the history of the package and/or the quality of food (Robertson, 2006)
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Dr. Graham Moore. (July 2006). Harnessing Opportunities Offered by Emerging Technologies.
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Advantages
improved control and maintenance of cold chain
improved sensory quality and safety control
quality labels as marketing tools
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Types of Intelligent Packaging Product Quality
Freshness IndicatorsTime – Temperature IndicatorsGas Concentration IndicatorsLeak IndicatorsSensors
ConvenienceThermochromic InksMicrowave Doneness Indicators (MDIs)Radio Frequency Identification (RFID)
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Freshness Indicators
quality or freshness indicators are used to indicate if the quality of the product has become unacceptable during storage, transport, and retailing and in consumers’ homes
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Freshness Indicators
Ripe SenseWorks by reacting to
the aromas released by the fruit as it ripens
sensor is initially red and graduates to orange and finally yellow
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Freshness Indicators
Kimchi Freshness IndicatorA color indicating film made of resin
(polypropylene), carbon dioxide absorber (calcium hydroxide), and a chemical dye (bromocresol purple or methyl red) which indicates the freshness of Kimchi
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Time – Temperature Indicators Provide a quick, easy, reliable way of
determining whether or not food has undergone changes in temperature or passed its pre-set time limit during transport and/or storage, and therefore is no longer safe to sell
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Time – Temperature Indicators Relies on the properties of organic
pigments that change color over time and when temperatures fluctuate
Once activated by a suitable UV light source, the indicator becomes dark and then grows progressively lighter as time passes and/or the ambient temperature rises
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Time – Temperature Indicators TEMPTIME
consists of a small circle of polymer surrounded by a printed reference ring
polymer gradually deepens in color to reflect cumulative temperature exposure
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Gas Concentration Indicators Internal gas label indicators are put into
the package to control the inside atmosphere
Labels change color at the correct gas level due to enzymatic activity
Allows fast visual check without package destruction
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Leak Indicators
Based on oxygen sensitive dye
color change from white to blue in the presence of a leakage (oxygen enters the package)
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Sensors
The Food Sentinel System™A biosensor system capable of continuous
detection of pathogens in a systemA specific pathogen antibody is attached to
the membrane forming part of the barcode
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Convenience
Essential element in the food industry Easier and quicker access to better
quality foods
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Thermochromic Inks
Thermochromismability of substance to
change color due to a change in temperature
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Thermochromic Inks
Liquid crystals Leucodyes
its cool state, a leucodye exhibits color, and when warmed, it turns clear or translucent
Courtesy of Color Change Corporation
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Microwave Doneness Indicators Devices which detect and visually
indicate the state of readiness of foods heated in a microwave oven
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Radio Frequency Identification The use of radio frequencies to read
information on a small device known as tagActive tagPassive tag
Any device that can be sensed at a distance by radio frequencies with few problems from obstruction or disorientation
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Radio Frequency Identification Attaching an RFID tag to a package
makes it "intelligent" because this silicon chip functions as a mobile database, holding valuable information, such as the product's history, location and destination
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Radio Frequency Identification
provide much more traceability in food packaging than bar code labels because the tags can be scanned without direct line of sight
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Theft, Counterfeit and Tampering Food processors' objective is to create a
package that is so difficult or expensive to imitate that counterfeiters can't succeed, or perhaps don't even try to create a knock-off
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Theft, Counterfeit and Tampering Taggants
which are traceable, microscopic particles, can be incorporated into packaging materials such as paper, plastic resins and films, adhesives and inks
The taggant code is a unique numeric code sequence embodied in a multi-colored, layered format
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Theft, Counterfeit and Tampering AuthentiGuard VeriGlow
The package or label is printed using invisible security ink and at the same time encoded with hidden graphics or text. A special light source is used to detect the security ink's glow, and a handheld decoder lens reveals the hidden message
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Theft, Counterfeit and Tampering AuthentiGuard VeriGlow
Taken from: http://www.foodprocessing.com/articles/2006/027.html?page=full
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ReferencesRobertson, G.L. (2006). Food Packaging Princples and Practice, 2nd
edition
Dennis R. Heldman. Encyclopedia of agricultural, food, and biological engineering
http://screenweb.com/index.php/channel/6/id/1425/
http://en.wikipedia.org/w/index.php?title=Radio-frequency_identification&printable=yes
http://news.thomasnet.com/IMT/archives/2003/02/food_packaging.html