Non-Thermal Preservation

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Presentation transcript:

Non-Thermal Preservation

D 9.01 -- Non-Thermal Preservation Definition Involves manipulating the properties of food or its environment without using heat. Examples include: Irradiation Ohmic heating Ozonation High pressure processing D 9.01 -- Non-Thermal Preservation

D 9.01 -- Non-Thermal Preservation Irradiation Exposure of food to ionizing radiation for preservation In the U.S. irradiated foods are required to be labeled. D 9.01 -- Non-Thermal Preservation

D 9.01 -- Non-Thermal Preservation Ohmic Heating Food is subjected to an alternating current flow between two electrodes. D 9.01 -- Non-Thermal Preservation

D 9.01 -- Non-Thermal Preservation Ozonation Water treatment process used to destroy microorganisms by ozone, a gas produced by exposure of oxygen molecules to high electric voltage D 9.01 -- Non-Thermal Preservation

High Pressure Processing Preservation method where liquid and solid foods are subjected to pressures of 45,000 pounds per square inch or higher. D 9.01 -- Non-Thermal Preservation