The present invention provides a sterilizer which includes a steam chamber comprising a steam chamber upper member and a steam chamber lower member which are bolt-coupled to each other; an inlet door configured to open or close an inlet of the steam chamber; and an outlet door configured to open or close an outlet of the steam chamber, wherein each of the steam chamber upper member and the steam chamber lower member comprises a housing defining a steam chamber inner space and a plurality of reinforcement ribs formed on a surface of the housing at a predetermined height.

The present invention relates to an apparatus and a procedure of pasteurization of food, preferably nuts and, particularly, almonds.

A method for pasteurizing freeze dried food comprises: 1) Determining the corresponding sterilization temperature according to the food to be sterilized, and determining the target water activity at the sterilization temperature; 2) Cooling the food to a temperature corresponding to the type of the food; 3) Removing the air from the sterilization chamber using a vacuum pump; 4) Introducing water vapor into the sterilization chamber, adjusting the steam flow rate after the food temperature reaches the sterilization temperature, and maintaining the food temperature at the sterilization temperature for a specific duration and ceasing the introduction of water vapor; 5) Capturing steam from the sterilization chamber and reducing the pressure in the chamber; 6) After the pressure in the chamber reaches or approaches the water saturation pressure corresponding to the cooling temperature prior to sterilization, charging clean air into the chamber until the vacuum state is released, and removing the food.

A tower used to extend the life of the grains in the period of their storage, through procedures of grain humidification, sterilization, cooling, freezing and drying, which can be applied together or separately according to with the need of each particular cultivation, offering a multifunctional tower of high performance and low fuel & energy consumption, low noise and eco-friendly, not contaminating the grains that make the heat exchange with steam.

Methods and apparatuses to activate, modify, and sanitize the surfaces of granular, powdered, or seed material placed in a continuous flow of a low-temperature, reduced-pressure gas plasma. Said plasma may be created with radio-frequency power, using capacitive-inductive, or a combination of both types of discharge. The plasma is generated at pressures in the 0.01 to 10 Torr range. RF frequency ranges from 0.2 to 220 MHz, and correspond to a plasma density between about n.sub.e10.sup.8-n.sub.e10.sup.12 or 0.001 to 0.4 W/cm.sup.3. Inserts and electrodes may be temperature controlled to control process conditions. RF discharge may be pulsed or modulated by different frequency in order to stimulate energy exchange between gas plasma and process material. The apparatuses may be grounded, biased and mechanically activated (e.g., vibration, rotation, etc.).

Methods and apparatuses to activate, modify, and sanitize the surfaces of granular, powdered, or seed material placed in a continuous flow of a low-temperature, reduced-pressure gas plasma. Said plasma may be created with radio-frequency power, using capacitive-inductive, or a combination of both types of discharge. The plasma is generated at pressures in the 0.01 to 10 Torr range. RF frequency ranges from 0.2 to 220 MHz, and correspond to a plasma density between about n.sub.e10.sup.8n.sub.e10.sup.12 or 0.001 to 0.4 W/cm.sup.3. Inserts and electrodes may be temperature controlled to control process conditions. RF discharge may be pulsed or modulated by different frequency in order to stimulate energy exchange between gas plasma and process material. The apparatuses may be grounded, biased and mechanically activated (e.g., vibration, rotation, etc.).

Apparatus and methods for bulk processing items on a conveyor belt using an angled axial fan that extends obliquely into a processing chamber that performs a pasteurization or other process on the conveyed items. The angled axial fan enhances air flow around a product being processed on the conveyor belt.

A method for carrying out a heat treatment, in particular roasting of bulky food products, in particular cocoa, nuts, like almonds, hazelnuts, pecans or walnuts, coffee, seeds, cereals, malt, peanuts, brans, grains or oilseeds such as sunflower seeds, wherein the food products are subjected to a predetermined temperature for heat treatment. During the heat treatment, the partial pressure of water in the atmosphere where the food products are located is controlled such that during the heat treatment a substantially homogeneous moisture distribution forms in the food products. In particular, the partial pressure of water is adjusted such that during the heat treatment the escape of moisture from the food products is avoided.

Method for pasteurizing almonds and other nuts with steam at atmospheric pressure. The amount of condensation on and the consequent water uptake of nuts is limited by pasteurizing the nuts in a heating chamber with a gaseous atmosphere including a steam mixture and forming a forced-convection path through the nuts. The limited water uptake maintains the quality of the nuts. A forced-convection steam cooker conveying food products on a foraminous conveyor belt forces the steam mixture through the nuts. A preheater preheats the nuts so that they can be pasteurized in the steam cooker at a temperature of between 85 C. and 99 C. to reduce the dwell time and increase throughput.

Provided is a superheated steam sterilization apparatus capable of continuously sterilizing a large amount of grain and of capable of eliminating uneven application of superheated steam even when a large amount of grain is loaded thereinto. A superheated steam sterilization apparatus according to one embodiment of the present invention includes: a horizontal cylindrical part including one end formed with a supply port for supplying an object to be sterilized and an opposite end formed with a discharge port for discharging a sterilized object; a rotating shaft part rotatably disposed in the horizontal cylindrical part, and including a helical screw configured to transfer the supplied object to be sterilized and an agitating member including a plurality of agitating blades configured to agitate the object to be sterilized; a plurality of superheated steam nozzles disposed above the horizontal cylindrical part; a superheated steam box disposed on the horizontal cylindrical part, divided into a plurality of sections along an axial direction, and configured to temporarily store superheated steam supplied from the superheated steam nozzles; and a steam outlet for applying superheated steam stored in the superheated steam box to the object to be sterilized which is transferred and agitated in the horizontal cylindrical part.