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Electronic TTI solutions and problems • ease of reading • need to collect food kinetics data • match TTI to activation energy of food • Food or tag must not have history effect • marketer’s resistance to cost (can be < $0.05) • liability for implied safety
KSW TempSense www.ksw-microtec.de
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History and future of TTI & RFID Tr
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Passive -Information only food labe
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ypes of food dating Code date Born
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But: dates by themselves ignore t-T
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Shelf Life Dating • OTA Study on
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NSF Food Loss Survey 1979 • froze
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The 3 Company Trio • 3M wax diffu
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Chemical Tag Design parameters •
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3M Diffusion Tag http://www.fdcpack
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3M MonitorMark 100 ARRHENIUS PLOT T
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US Patent 5,667,303 • Time-Temper
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3M Commercial Tests of 2nd Gen Moni
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MonoPrix France 180 stores Freshnes
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Vaccine Vial Monitor (VVM) • WHO
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Days of Shelf life of milk System P
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20 °C Log N C 4 °C A B D Time
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Consumer demand for dating • 1998
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Other early systems
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Area under T vs t curve
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Amount of Change for Q 10 = 6 • f
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Tropicanna Fresh OJ Food Tech June
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61 FR 59372-82 Transportation and S
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• FIFO vs LSFO system (Wells and
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FISH SENSORY TEST ISOTHERMAL STORAG
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FISH SENSORY TEST : NON -ISOTHERMAL
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% Life Consumed TTI Center Box TTI
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Reduction in illness using LSFO 0.5
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Other chemical TTI vendors • Bioe
Page 61 and 62: Data loggers • Reusable • $10-$
Page 64: Time temperature History 8 7 6 5 4
Page 67 and 68: iButton • Thermistor (-40 °C to
Page 69 and 70: Many other companies • 3M Chile
Page 71 and 72: Other driving forces • Traceabili
Page 73 and 74: Bioterror • Intentional delivery
Page 75 and 76: Regs under Biosecurity Act • Regi
Page 77 and 78: 5 day Lettuce orders Goes to > 1000
Page 79 and 80: EU Requirement 178/2002 Article 18
Page 81 and 82: Drivers • Recalls - Majority are
Page 83 and 84: Days Time to Event 99% stopped 1st
Page 85 and 86: EU labeling initiative 2003 • EU
Page 87 and 88: Drivers • Country of Origin Label
Page 89 and 90: Cool Record keeping http://www.ams.
Page 91 and 92: Economics • Retail shrink ~ 2.3%
Page 93 and 94: Consumer Open Dating Survey http://
Page 95 and 96: Listeria monocytogenes • Major co
Page 98 and 99: USDA -FSIS 1998 Guidance for Beef G
Page 100 and 101: 1. What are the scientific paramete
Page 102 and 103: CFU critical Microbial Life cycle s
Page 104 and 105: Clostridium botulinum fish study (G
Page 106 and 107: Log TTD vs temperature Time to dete
Page 108 and 109: Electronic “Smart Labels” for T
Page 110 and 111: Achieving RFID Traceability • Tag
Page 114 and 115: Micro-electronic TTI tag vendors
Page 116 and 117: End points • Color change • Lig
Page 118 and 119: Critical Factors - technology • C
Page 120 and 121: Traceability concerns • 4th amend
Page 122 and 123: Contact Dr. Theodore Labuza Departm
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