BIO-REACTIVE FOOD EXPIRY LABEL

A food expiry label includes a layer of material (such as a water-swollen mammalian gelatine) that undergoes a phase transition (such as from solid to liquid) upon exposure to bacteria or fungi that result in food spoilage. The label may incorporate a tactile surface that the user can feel underneat...

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Bibliographische Detailangaben
1. Verfasser:	PAKSTAITE, Solveiga
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONVEYING FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS MEASURING PACKING PERFORMING OPERATIONS PHYSICS PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL STORING TESTING THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	A food expiry label includes a layer of material (such as a water-swollen mammalian gelatine) that undergoes a phase transition (such as from solid to liquid) upon exposure to bacteria or fungi that result in food spoilage. The label may incorporate a tactile surface that the user can feel underneath the layer of gelatine once the gelatine has changed from solid to liquid. Thus a user can detect when a foodstuff is likely to have spoiled or been on the shelf for a predetermined period simply by feeling the label.