초록 ▼

A high temperature, short time heating system and method for the pasteurization and/or sterilization of heat-sensitive material to destroy substantially selected pathogenic microorganisms without substantially affecting other desirable properties of the material, such as proteinaceous matter, which

A high temperature, short time heating system and method for the pasteurization and/or sterilization of heat-sensitive material to destroy substantially selected pathogenic microorganisms without substantially affecting other desirable properties of the material, such as proteinaceous matter, which method comprises: subjecting the material to microwave energy to heat rapidly the material for a short time period to a pasteurizing or sterilization temperature for a short holding time period; rapidly cooling the heated material; and recovering an aseptic biological fluid.

대표청구항 ▼

A method for the high temperature, short time heating of a heat-sensitive liquid material which includes a heat-sensitive compound and microorganisms, which method comprises: (a) rapidly heating the heat-sensitive material at a rate of over about 50°C. per second for a heating time period to a prese

A method for the high temperature, short time heating of a heat-sensitive liquid material which includes a heat-sensitive compound and microorganisms, which method comprises: (a) rapidly heating the heat-sensitive material at a rate of over about 50°C. per second for a heating time period to a preselected temperature of over about 60°C. and where the rate of reduction of the microorganism is greater than the rate of destruction of the heat-sensitive compound by the employment of microwave heating energy to provide a heated liquid material; (b) holding the said heated heat-sensitive material at the preselected temperature for a short holding time period; (c) rapidly cooling the heated heat-sensitive material to a preselected lower temperature for a cooling time period to provide a cooled heat-sensitive material; (d) circulating the heat-sensitive material while rapidly heating, holding and rapidly cooling the heat-sensitive material; and (e) the heating, holding and cooling time periods not greater than about 1.0 seconds and sufficiently short so as not to effect substantially the desirable properties of the heat-sensitive material, but sufficient for the desired reduction of the microorganism in the heat-sensitive material. A high temperature, short time heat process system for the rapid heating, holding and cooling of a heat-sensitive material to destroy undesirable agents therein without substantial alteration of other desirable heat-sensitive components or properties of the heat-sensitive material, which system comprises: (a) a source of heat-sensitive material to be heated; (b) microwave heating energy means to heat rapidly for a heating time period said heat-sensitive material from the said source at a rate of about 25°C. to 8000°C. per second to a preselected temperature of over about 60°C. for a holding time period of up to about 0.5 seconds to destroy undesirable agents in the heat-sensitive material without substantial alteration of other desirable heat-sensitive components or properties in the heat-sensitive material; (c) cooling means to cool rapidly the heated heat-sensitive material to a preselected cooler temperature at a rate of greater than 100°C. in a cooling time period to provide a cooled heat-sensitive material without substantial alteration of other desirable heat-sensitive components or properties in the heat-sensitive material; (d) circulating means to permit the flow of said heat-sensitive material from said source of heat-sensitive material and through said microwave heating energy means in a microwave heating relationship and through the said cooling means in a cooling relationship and to the means to recover the cooled heat-sensitive material; (e) pump means to pump said heat-sensitive material through said circulating means; and (f) means to recover the cooled heat-sensitive material.