2024 Author: Jasmine Walkman | [email protected]. Last modified: 2023-12-16 08:29
A team of scientists has created a nanoantimicrobial spray that will keep food fresh for longer. The spray contains plant polyphenols, which have benefits for human health.
It only takes a few seconds for the nanoparticles in the spray to form a thick coating on the food product, preventing it from decomposing.
Thus, the shelf life of many foods will be able to be extended without the use of harmful preservatives. The invention will be most useful for agricultural production, because it will throw away less fruits and vegetables.
The creators of the spray say that in addition to prolonging the shelf life of food, it can also provide it with some useful ingredients.
The coating will be stable enough to protect bulk foods such as fruit, but will not apply to pre-cooked foods. However, experiments with strawberries and tangerines have been found to increase their shelf life by 28 days.
The spray contains polyphenols, which are metabolites of photosynthesis and have antioxidant properties. They are found in most plants and are sold as a non-toxic food supplement known for their anti-cancer properties.
Researchers have used the chemical properties of these polyphenols to improve their scattering technology.
Compared to conventional immersion methods in specialized coating solutions, this spraying technique can cover selected areas faster. The spray also prevents cross-contamination.
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