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A centrifuge is a device that uses centrifugal force to subject a specimen to a specified constant force - for example, to separate various components of a fluid. This is achieved by spinning the fluid at high speed within a container, thereby separating fluids of different densities (e.g. cream from milk) or liquids from solids.
In the chemical and food industries, special centrifuges can process a continuous stream of particle turning into separated liquid like plasma. Centrifugation is also the most common method used for uranium enrichment , relying on the slight mass difference between atoms of U-238 and U-235 in uranium hexafluoride gas.
Food preservation may also include processes that inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut during food preparation. By preserving food , food waste can be reduced, which is an important way to decrease production costs and increase the efficiency of food systems , improve food security ...
Decanter centrifuges require a centrifugal force for the separation of the solids from the liquid. This characteristic is dependent on the radius of the centrifuge and its angular rotational speed. A decanter centrifuge applies a force equivalent to several thousand G's, which reduces the settling time of the particles.
Additionally, the hurdle effect of food preservation, such as by adding lactic acid bacteria and salt to a food product, is illustrated and described. [ 11 ] [ 12 ] [ 13 ] This figure illustrates the pathway of food preservation followed by lactic acid bacteria involving nisin , as well as the pathway of food preservation followed by salt.
There are many branches of food science that study different aspects of food, such as safety, microbiology, preservation, chemistry, engineering, and physics. Until the advent of molecular gastronomy, there was no branch dedicated to studying the chemical processes of cooking in the home and in restaurants.
Food. Southern Living. This hash brown casserole is so good, I made it two weekends in a row. News. News. Associated Press. Soldier who died in Las Vegas explosion left note saying it was to be a ...
Physical preservation entails processes such as refrigeration or drying. [1] Preservative food additives reduce the risk of foodborne infections, decrease microbial spoilage, and preserve fresh attributes and nutritional quality. Some physical techniques for food preservation include dehydration, UV-C radiation, freeze-drying, and refrigeration ...