Magnetic and Golden Yogurts. Food As a Potential Nanomedicine Carrier.

Victor Garces,Ana Gonzalez,Laura Sabio, Carmen M. Sanchez-Arevalo,Natividad Galvez,Jose M. Dominguez-Vera

Materials (Basel, Switzerland)（2020）SCI 3区

Cited 10|Views18

Abstract

Yogurt is one of the most emblematic and popular fermented foods. It is produced by the fermentation of milk lactose by bacteria such as Streptococcus thermophilus and Lactobacillus acidophilus. Magnetic (MNPs) and gold nanoparticles (AuNPs) were incorporated into the exopolysaccharides (EPSs) of these bacteria. The functionalized bacteria were characterized by UV-vis spectroscopy and transmission electron microscopy. A large number of MNPs and AuNPs were bound to the bacterial EPS. Interestingly, the nanoparticles' (NPs) presence did not affect the bacteria's capacity to ferment milk and to produce magnetic and golden yogurts. Magnetic and golden yogurts represent the perfect combination of emblematic food and nanoparticles and have a range of potential biomedical applications: use in iron-deficiency anemia, diagnosis and hyperthermia treatment of appropriate digestive diseases, and interest in glamour cuisine.

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Key words

yogurt,gold nanoparticles,magnetic nanoparticles,functional food

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