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Vacuum-steam pulse blanching equipment and method for blanching employing vacuum-steam pulse blanching equipment

A steam and vacuum technology, applied in application, food processing, heating and preservation of fruits/vegetables, etc., can solve problems such as low heat utilization efficiency, uneven blanching, and impermeability of steam, so as to reduce blanching costs and shorten drying time, the effect of reducing thermal resistance

Inactive Publication Date: 2015-04-01
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to apply the vacuum-steam pulsation technology to steam blanching in order to solve the problems of traditional steam blanching that the steam cannot penetrate through the thicker material layer, uneven blanching, and low heat utilization efficiency when processing batch materials. , providing a vacuum-steam pulsating blanching equipment

Method used

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  • Vacuum-steam pulse blanching equipment and method for blanching employing vacuum-steam pulse blanching equipment
  • Vacuum-steam pulse blanching equipment and method for blanching employing vacuum-steam pulse blanching equipment
  • Vacuum-steam pulse blanching equipment and method for blanching employing vacuum-steam pulse blanching equipment

Examples

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Effect test

Embodiment 1

[0057] Use vacuum-steam pulsating blanching equipment to blanch fresh lilies.

[0058] In this embodiment, the material basket 6 is divided into three blanching areas along the radial direction, such as figure 2 shown.

[0059] The method of blanching fresh lilies with vacuum-steam pulsating blanching equipment is as follows:

[0060] a. Turn on the steam generator 1 to make the absolute pressure of the steam generator 1 reach 0.4MPa;

[0061] b. Open the steam generator ball valve 3 and the steam solenoid valve 4, and pass steam into the blanching tank 13 for 2 minutes, so that the temperature of the blanching tank 13 rises to 80°C;

[0062] c. Remove the roots of fresh lilies (moisture content on a wet basis is about 71%), break off the pieces, clean, select lilies with bright white color, fresh and tender tissue, fresh and non-rotten, and the same size, and put them into the material basket 6;

[0063] d. Start the vacuum generation system, and when the vacuum degree in...

Embodiment 2

[0069] The grapes are blanched using vacuum-steam pulsating blanching equipment.

[0070] In this embodiment, the material basket 6 is divided into 4 blanching areas along the radial direction, such as image 3 shown.

[0071] The method of blanching grapes with vacuum-steam pulse type is as follows:

[0072] a. Turn on the steam generator 1 to make the absolute pressure of the steam generator 1 reach 0.4MPa;

[0073] b. Open the steam generator ball valve 3 and the steam solenoid valve 4, and pass steam into the blanching tank body 13 for 3 minutes, so that the temperature of the blanching tank body 13 rises to 90°C;

[0074] C, put a certain amount of seedless white grapes (about 79% moisture content in wet basis) through cleaning and drying into the basket 6;

[0075] d. Start the vacuum generation system, and when the vacuum degree in the blanching tank 13 reaches 0.01MPa, keep it for 15s;

[0076] e. Pass steam into the blanching tank body 13, and when the absolute pr...

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PUM

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Abstract

The invention belongs to the field of processing of agricultural products, and particularly relates to vacuum-steam pulse blanching equipment and a method for blanching employing the vacuum-steam pulse blanching equipment. The vacuum-steam pulse blanching equipment comprises a fixed rack (20), a blanching tank body (13), a vacuum generation system, a steam generation system and an automatic control system. Compared with existing continuous steam blanching equipment, the blanching efficiency can be greatly improved by adopting a pulse vacuum blanching technology; the amount of water resources is reduced; the blanching cost is reduced; the later drying time is shortened; and the vacuum-steam pulse blanching equipment can be applicable to blanching of food, biological products and medicines.

Description

technical field [0001] The invention belongs to the field of agricultural product processing, and in particular relates to a vacuum-steam pulsating blanching device and a blanching method using the device. Background technique [0002] Blanching is the process of heating properly processed fresh fruit and vegetable raw materials in hot water or steam at a higher temperature. Blanching can effectively inactivate the enzymes that cause color and taste changes in fruits and vegetables, thereby inhibiting the occurrence of enzymatic reactions during processing; it can also promote the denaturation of protoplasm in the cells of fruits and vegetables, increase the permeability of cell membranes, and facilitate water evaporation, shortening the drying time. [0003] At present, hot water blanching and steam blanching are the two main methods used in the fruit and vegetable blanching process. Hot water blanching is a blanching method in which fruits and vegetables are heated in ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/005A23N12/08
Inventor 高振江巨浩羽代建武肖红伟王栋
Owner CHINA AGRI UNIV
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