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Instantaneous Pressure Difference Sterilization Method and Its Application in Apple Powder Sterilization

A technology of apple powder and differential pressure, applied in the fields of application, food science, food preservation, etc., can solve the problems of restricting the production and sales of irradiated food, and achieve the effects of mature production equipment, improved rehydration characteristics, and convenient operation.

Active Publication Date: 2019-06-11
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, many countries, especially developed countries and regions represented by the European Union, have strictly restricted the production and sales of irradiated food

Method used

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  • Instantaneous Pressure Difference Sterilization Method and Its Application in Apple Powder Sterilization
  • Instantaneous Pressure Difference Sterilization Method and Its Application in Apple Powder Sterilization
  • Instantaneous Pressure Difference Sterilization Method and Its Application in Apple Powder Sterilization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 Shown, the present invention provides the present invention provides a kind of method utilizing instantaneous differential pressure treatment that apple powder is sterilized, mainly comprises the following steps:

[0055] (1) Put the apple powder in the processing chamber of the instantaneous pressure difference equipment, preheat the apple powder, and directly inject saturated steam to heat the material, and the specific temperature after heating is 120°C, and the heating time is 30s ; While preheating, turn on the ultrasonic generator, adjust the frequency to 20KHz, and power to 400W;

[0056](2): Use high-pressure air to pressurize the processing chamber, wherein the pressurization time is 90s, and the pressure of the processing chamber after pressurization is 0.3MPa;

[0057] (3): Open the pressure relief valve to perform instantaneous differential pressure treatment on the materials in the processing bin, wherein the pressure relief time is 80ms, ...

Embodiment 2

[0067] Such as figure 1 Shown, the present invention provides the present invention provides a kind of method utilizing instantaneous differential pressure treatment that apple powder is sterilized, mainly comprises the following steps:

[0068] (1) Put the apple powder in the processing chamber of the instantaneous pressure difference equipment, preheat the apple powder, and use the steam pipe to heat indirectly. Generator, adjustable frequency is 40KHz, power 1200W;

[0069] (2): Use high-pressure air to pressurize the processing chamber, wherein the pressurization time is 10s, and the pressure of the processing chamber after pressurization is 0.6MPa;

[0070] (3): Open the pressure relief valve to perform instantaneous differential pressure treatment on the materials in the processing bin, wherein the pressure relief time is 120ms, and the pressure after pressure relief is 4kPa; after the pressure relief is completed, turn off the ultrasonic generator;

[0071] (4): cooli...

Embodiment 3

[0079] Such as figure 1 Shown, the present invention provides the present invention provides a kind of method utilizing instantaneous differential pressure treatment that apple powder is sterilized, mainly comprises the following steps:

[0080] (1) Put the apple powder in the processing chamber of the instantaneous pressure difference equipment, preheat the apple powder, and use saturated steam to directly contact the material for heating. The specific temperature of the temperature rise is 135°C, and the temperature rise time is 40s; Turn on the ultrasonic generator, adjust the frequency to 28KHz, and the power to 800W;

[0081] (2): Use high-pressure air to pressurize the processing chamber, wherein the pressurization time is 60s, and the pressure of the processing chamber after pressurization is 0.6MPa;

[0082] (3): Open the pressure relief valve to perform instantaneous differential pressure treatment on the materials in the processing bin, wherein the pressure relief t...

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Abstract

The invention discloses an instantaneous differential pressure sterilization method. The instantaneous differential pressure sterilization method comprises the following steps of preheating: powdery materials are preheated to 80 to 135 DEG C within 10 to 60 s; pressurizing: the pressure of a processing bin in which the preheated powdery materials are put is increased to 0.1 to 0.8 MPa within 10 to 90 s; depressurizing: the pressure of the processing bin in which the preheated powdery materials are put is reduced to 3 to 5 kPa within 20 to 200 ms, wherein ultrasonic wave is used for treating the powdery materials during the preheating, pressurizing and depressurizing processes. The invention further discloses an application of the instantaneous differential pressure sterilization method to apple powder sterilization. According to the sterilization method disclosed by the invention, sterilization is completed by adopting the change of instantaneous differential pressure of the preheated powdery materials, and the sterilization method belongs to physical sterilization and has the advantages of no chemical residue, short sterilization time and thoroughness in sterilization; in addition, instantaneous differential pressure sterilization equipment has the advantages of low.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to an instantaneous pressure difference sterilization method and its application in apple powder sterilization. Background technique [0002] Apple is the largest fruit in the world. In 2014, China's apple output reached 39.68 million tons. Apples are rich in vitamins and dietary fiber, and are an important part of people's daily diet. Fruit and vegetable powder is a kind of leisure food prepared from fruits and vegetables. It is easy to eat, healthy and nutritious, and is favored by consumers. Fruit and vegetable powder has a wide range of applications and can be used as an auxiliary material in the processing of solid beverages, pastries, and puffed foods. [0003] Fruit and vegetable powder is easy to condense, and dry heat sterilization is generally used. At present, the main sterilization methods are high temperature sterilization and radiation sterilization. High-te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L3/015A23L3/30
CPCA23L3/0155A23L3/30
Inventor 易建勇毕金峰陈芹芹周林燕周沫刘璇吴昕烨彭健肖敏
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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