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Politici agricole comunitare

   

CODUL DE BARE CAMELEON



      Un cod de bare "inteligent"  pentru ambalajele produselor alimentare poate informa consumatorii si comerciantii daca produsele refrigerate, de ex. pui, lapte si carne de vita  mai sunt sau nu in stare proaspata.
      Universitatea din Rhode Island (URI) a declarat ca sistemul a fost dezvoltat de un parteneriat dintre doi profesori de chimie si o companie de siguranţa alimentelor, SIRA Tehnologii.
       Eticheta cu codul special de bare foloseste o cerneala aproape invizibila, dar care isi schimba culoarea in rosu, atunci când alimentele sunt contaminate, impiedicand astfel scanarea produsului la casa de marcat.
       Ambalajele inteligente include indicatori de prospetime si indicatori pentru timp-temperatura. Ele sunt folosite in lantul comercial al alimentelor care sunt sensibile la temperaturi ridicate.
       Etichetarea electronica stabileste semnale ireversibile pe ambalajul aplicat.

       Istoria proiectului

      Cercetatorii URI au explicat ca au inceput studiul pigmentilor termocromici (isi schimba culoarea la anumite temperaturi) in urma cu 10 ani aunci cand o companie producatoare de plite electrice a inclus un polimer capabil sa isi schimbe culoarea atunci cand plita era prea incinsa. In schimb, oamenii de stiinta de la URI au creat un polimer care sa nu revina la culoarea initiala dupa ce temperatura s-a schimbat.

       Disponibilitatea economica

      In timp ce alti indicatori termocromici de pe piata sunt foarte scumpi, acest cod de bare inteligent costa 4 centi bucata.
      Ambalajele intelgiente, in speta etichetarea electronica a ambalajelor, vor conferi securitate, siguranta alimentara produselor alimentare.
      Se previzioneaza ca eticheta electronica si ambalajele intelgiente vor deveni noua tendinta a pietei ambalajelor, fiind o cerere puternica pentru etichetele electronice care prezinta informatii mult mai clare.
       Reprezentantul IDTechex, Peter Harrop, crede ca etichetele electronice vor fi capabile sa antreneze simturile consumatorilor “Viitoarele etichete vor simti prezenta consumatorilor in apropierea ambalajelor si vor emite arome pentru a incuraja consumatorii sa cumpere produsul”. A mai adaugat ca noua generatie de etichete electronice vor include etichete reutilizabile, reconfigurabile si programabile, unele dintre ele fiind interactive in sensul ca miscand eticheta culorile vor crea imagini.
Necesitatea folosirii pe scara larga
      Etichetele electronice vor avea succes doar daca vor avea aplicatii la scara larga si vor putea fi folosite de majoritatea produselor alimentare “altfel pretul etichetei electronice va fi foarte costisitor”.


Data adaugarii: 05.03.2009 Sursa www.foodproductiondaily.com
   
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