Nano technologoy new & urgent methodological in food

The GoodFood project aims to do just that by using micro and nanotechnology to develop portable devices to detect toxins, pathogens and chemicals in foodstuffs on the spot. Food samples would no longer have to be sent to a laboratory for tests – a comparatively lengthy and costly procedure – but could be analysed for safety and quality at the farm, during transport or storage, in a processing or packaging centre or even in a supermarket. “The aim is to achieve full safety and quality assurance along the complete food chain,” explains Carles Cané, the coordinator of the IST programme-funded project at the National Microelectronics Centre in Spain. The tiny biomechanical and microelectronic sensors can be used to screen for virtually any pathogen or toxin in any produce, although the project partners are focusing their research on quality and safety analysis for dairy goods, fruit and wine. For the dairy sector they are developing a device based on a fluorescent optical biosensor that measures the reaction of a probe coated with antibodies when it comes into contact with antibiotics present in milk or other dairy products. Though the use of antibiotics as growth enhancers is prohibited in dairy cattle in Europe, farmers are permitted to employ them to treat ailments affecting individual animals. These can enter the milk and could prove harmful to consumers - especially if they end up in baby food - by creating cumulative resistance to antibiotic treatments. An electronic device of the kind being developed by GoodFood would make the tests faster, cheaper and more accurate. Improving food safety is not the only goal of the project, however, which is also planning to use micro- and nano-sensors to increase food quality, with evident benefits not just for consumers but also farmers and processors.

Keywords:

Nano technology-food-quality