Carbon dioxide sensors for food packaging
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AutorPérez de Vargas Sansalvador, Isabel María; Erenas Rodríguez, Miguel María; Martínez Olmos, Antonio; Fernández Ramos, María Dolores; Capitán Vallvey, Luis Fermín
CO2 sensorsSmart packagingIntelligent packaging
PatrocinadorEuropean Union's Horizon 2020 research and innovation programme under grant agreement No 706303 (Multisens); CTQ2016–78754-C2-1-R project from the Spanish MINECO.
Traditional food packaging objective is the isolation of products from the outer atmosphere to extend their shelf life. In response to current necessities, traditional food packaging has led to smart packaging. CO2 inside food packages is a key factor to control. CO2 sensors can give information about the modified atmosphere integrity, indicating that the inner atmosphere is intact or if it has been broken and therefore the used by date must not be trusted, or about how fresh is the packaged product. This article briefly describes the types of packaging (traditional and smart) and how CO2 sensors can be used in the food industry. Different approaches for their integration in packaged food are described and the characteristics that must comply in order to be integrated in the agro-alimentary industry.