Smart packaging of food products is a new promising technology aiming to the preservation of consumer’s health and safety while prolonging the products’ self-life in transport and mass storage. Smart packaging can be applied by using chemical and/or biological sensors for monitoring indicators associated with bacterial growth and spoilage, as well as pathogen contamination. Poultry meat is a nutrient-rich matrix which supports the growth of various micro-organisms and the extended storage time can allow the proliferation of different microbial species on meat surfaces. The nature of the packaging approaches and storage factors can dictate the nature of the spoilage that transpires, with respect to the dominant microflora of the end-product. In the present study an innovative approach is explored for the development of cost-effective 3D-printed biosensors for monitoring known indicators associated with bacterial growth and spoilage in poultry meat. Spoilage was also independently measured using MSI and FT-IR spectroscopic methods. The development of a protocol for pathogen screening was also investigated with real-time polymerase chain reactions (qPCR).
KEYWORDS: Sensors, Safety, Packaging, Aerosols, Chemical analysis, Printing, Inkjet technology, Chemical elements, Biological and chemical sensing, Transducers
The packaging of agricultural products is of paramount importance for managing the food supply with innovative and safe products. The consumer, at the same time, is increasingly aware of the impact of packaging on the environment ensuring that the value of packaged agri-food products depends on the threefold control, quality, protection. The present study reveals new possibilities that cover (a) food safety and traceability by applying smart packaging solutions, and (b) ensuring and verifying the authenticity of packaged agri-food products. The innovative sensors and procedures which are being developed enable novel intelligent traceability systems aiming to provide product quality and safety information to effectively control the supply chain and predict the remaining shelf-life of the product. To this end, low-cost, batteryless wireless interdigital sensing systems equipped with two-way response antenna, have been directly deposited on packages made of any material or shape, having the possibility of integrating in real-time with packaged agri-food products. Also, new methodologies are being developed, aiming to verify food authenticity leading to the protection of the consumer from fraud, counterfeiting or improper packaging of protected designation of origin products such as dairy products, olive oil, as well as herbs and spices.
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