Percorrer por autor "Macena, M."
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- Application of nanotechnologies along the food supply chainPublication . Cruz-Lopes, Luísa; Macena, M.; Guiné, Raquel P. F.Nanoscience and nanotechnology are new fromtiers for this century. Nanotechnology translates into the ability to manipulate the material on a nanoscale. As in other sectors, recent developments in the fi eld of nanoscience and nanotechnology o ff er new opportunities for innovation for food. Nanofoods are considered foods grown, produced, processed or packaged using nanotechnological tools that incorporate nanomaterials to improve nutritional quality, taste or texture, and increase the shelf life of food. Nanotechnology ’ s applications are diverse, going from nanoencapsulated ingredients, such as bioactive compounds, nutrients and food additives that increase thebioavailability of the compounds, to ingredients that constitute nanostructures and nanotextures that provide barriers for physical - chemical protection, which allow modi fi cation of fl avour and odour. Also, has the potential to be used as biosensors to monitor food conditions during storage and transport, through packaging that includes indicators. This review covers the development and use of nanotechnology along the food supply chain, focusing the agricultural production, industrial processing and protection through packaging, as well as addressing the advantages and disadvantages of using this technology.
- Nanotechnology in Food: Technlology, Applications and SafetyPublication . Cruz-Lopes, Luísa; Macena, M.; Guiné, RaquelNanotechnology has brought immense possibilities to the food and agricultural sectors. However, it has also been perceived as posing many issues, particularly regarding the safety of humans, ecosystems and all living organisms involved. Therefore, it is very important to discuss the possible applications of nanotechnology in the food industry or even in a broader scale in the whole food supply chain, as well as extend these applications ensuring the safety of all those involved. Additionally, it is vital to look at the perspective of the general public and try to understand if it are aware of the possible application of nanotechnology to the food they consume, or to the packaging materials that are in contact with foods as well as if it knows the risks associated to this technology. Finally, it is also important to investigate if the real risks are negligible from the technical and scientific points of view, but if the consumer perceives them on a much larger scale owing to lack of correct information available. This chapter aims to depict some applications of nanotechnology in the food supply chain and the corresponding risks involved as well as how the consumer perceives them.