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Microwave egg pasteurization method and apparatus

A shell egg pasteurizer, pasteurization technology, applied in microwave heating, egg preservation, heating preservation of eggs, etc., can solve problems such as ineffectiveness and temperature rise

Inactive Publication Date: 2019-12-13
CSIR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this does not work in practice as it turns out that it is impossible to obtain a sufficiently uniform temperature rise as the matrix of eggs passes through the microwave cavity, some eggs get too hot and some eggs stay too cold

Method used

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  • Microwave egg pasteurization method and apparatus
  • Microwave egg pasteurization method and apparatus
  • Microwave egg pasteurization method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0091] with reference to the attached figure 1 , reference numeral 10 generally denotes a shell egg pasteurizer according to the present invention. Machine 10 generally includes a warming stage 12 and a pasteurization stage 14 immediately adjacent to warming stage 12 . The machine 10 as shown is modular, wherein the warming stage 12 comprises one module and the pasteurization stage 14 comprises three modules 14.1 , 14.2 and 14.3 which are fitted together to form the pasteurization stage 14 .

[0092] The heating stage 12 includes eight elongated or longitudinally extending microwave cavities 16 (see image 3 ), which are separated from each other so that microwaves fed to one longitudinally extending microwave cavity 16 do not leak into any other longitudinally extending microwave cavity 16 . Therefore, each longitudinally extending microwave cavity 16 is in the form of a stainless steel rectangular tube whose vertical longitudinal section is as Figure 4 shown. from Fi...

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PUM

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Abstract

An in-shell egg pasteurization process includes, in a temperature-raising stage (12), raising the temperature of yolk of a plurality of in-shell eggs (40), simultaneously and at least predominantly bymeans of microwave radiation, to a pasteurization temperature, the temperature-raising stage (12) including a plurality of elongate or longitudinally extending microwave cavities that are isolated from one another so that microwaves fed into an elongate or longitudinally extending microwave cavity do not leak into any other elongate or longitudinally extending microwave cavity. The in-shell eggs(40) are displaced along the lengths of the elongate or longitudinally extending microwave cavities whilst being irradiated with microwaves. In a pasteurization stage (14), the raised temperatures ofthe in-shell eggs (40) are maintained for a pasteurization time sufficient to pasteurize the in-shell eggs (40).

Description

technical field [0001] This invention relates to in-shell pasteurization of eggs. In particular, the present invention relates to a pasteurization method for shell eggs and a pasteurization machine or device or equipment for shell eggs. Background technique [0002] US 8,071,146 and US 8,569,667, incorporated herein by reference, describe the problem of Salmonella enteritides infecting shell eggs, such as shell eggs, and attempts to Difficulties encountered when pasteurizing whole shell eggs. Egg yolk proteins are generally more heat stable than egg white proteins. However, since the target microorganisms are located inside the yolk, the temperature of the yolk in shell eggs must be raised high enough without damaging the egg white. Thus, US 8,071,146 describes a shell egg pasteurization process that uses microwave radiation to raise the temperature of the egg whites of shell eggs to between 57°C and 60°C, wherein the rate of increase in egg white temperature decreases ov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B5/005A23B5/01A23L3/01A23L3/18H05B6/78
CPCA23B5/0052A23B5/01H05B6/782A23L5/34A23L15/00H05B2206/045Y02A50/30A23L3/01A23L3/185
Inventor 马泰斯·约翰尼斯·罗索乌普拉尼塔·道拉尔
Owner CSIR