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https://www.selleckchem.com/ High doses of radiation (20 kGy) were necessary to detect a significant (p less then 0.05) decrease of up to 1.26 log10 viral copy number. This dose significantly (p less then 0.05) raises the root means square roughness (Rq), which affects directly the quality and texture of the product. The gamma irradiation doses tested in this study were not enough to inactivate NoV. The allowed gamma irradiation doses for fresh produce does not alter the surface topology of the fruit, but they affect the content of fluorescent compounds, responsible for the antioxidant activity of the fruit.Synthetic preservatives can have harmful effects on the body, so plant essential oils appear to be an attractive natural alternative. However, the use of essential oils is limited due to the low stability and possible negative effects on the sensory properties of food. Oil encapsulation was suggested as a way to overcome these drawbacks. The objective of this study was to encapsulate thyme essential oil and to evaluate its antioxidant and antimicrobial potential in vitro and in situ in of hamburger-like meat products. The casein-maltodextrin capsules produced by spray-drying were assessed for encapsulation efficiency, thermal stability, chemical compounds and morphology. Antioxidant activity was evaluated by DPPH, hydroxyl and nitric oxide methods, while antimicrobial activity was evaluated in vitro against four bacteria and in situ in hamburger-like products. The capsule showed high encapsulation efficiency and thermal stability, and spherical and irregular morphology. The casein-maltodextrin encapsulated essential oil showed antioxidant and antimicrobial activity against Staphylococcus aureus, Escherichia coli, Listeria monocytogenes and Salmonella Typhimurium tested in vitro and against thermotolerants coliforms and Escherichia coli in situ, showing potential for application as a natural preservative in food.Public health practitioners and researchers have use

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