| 摘要 |
<p>A method and apparatus for the continuous sterilization of unpackaged biological liquids, particularly milk and its by-products, containing bacterial and sporal loads, includes the steps of: a) gradually preheating the liquid with conventional heating methods to a temperature between 90° and 140 °C; b) irradiating the product with an electromagnetic RF field with a frequency of less than 1 GHz, so as to very quickly superheat the product to a temperature between 145 and 165 °C and with a thermal gradient between approximately 0.1 °C/s and 10 °C/s; c) cooling the liquid to a temperature of approximately 15 °C before packaging the product.</p> |
