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Vegetable sterilization apparatus and method for production of sterilized vegetables

A sterilizing device and vegetable technology, which is applied in the fields of fruit and vegetable preservation, food preservation, food processing, etc., can solve the problems of vegetable residues and residues, and achieve the effect of inhibiting detachment

Inactive Publication Date: 2016-12-14
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if chlorine-based fungicides such as sodium hypochlorite are used, chlorine odor may remain on vegetables or by-products may remain

Method used

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  • Vegetable sterilization apparatus and method for production of sterilized vegetables
  • Vegetable sterilization apparatus and method for production of sterilized vegetables
  • Vegetable sterilization apparatus and method for production of sterilized vegetables

Examples

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Effect test

no. 1 approach

[0029] figure 1 It is a block diagram of the vegetable sterilization apparatus 100 of 1st Embodiment. The vegetable sterilizing apparatus 100 sterilizes vegetables V using ozone water. The conveying devices 50 and 60 are connected to the vegetable sterilizing device 100 . The vegetables V supplied to the vegetable sterilizing device 100 by the conveying device 50 are sterilized in the vegetable sterilizing device 100 and then supplied to a packaging device (not shown) or the like by the conveying device 60 .

[0030] The vegetable sterilizing apparatus 100 has the preliminary washing tank 2, the ozone water disinfection tank 3, the post washing tank 4, and the exhaust hood 10 arrange|positioned above them. The exhaust hood 10 is divided into three sections 20 , 30 , 40 (spaces) by movable partition plates 11 , 12 , 13 , 14 . Section 20 among these sections is formed above the preliminary cleaning tank 2 , section 30 is formed above the ozone water sterilization tank 3 , and...

no. 2 approach

[0055] Next, refer to image 3 as well as Figure 4 , the structure and control method of the vegetable sterilization apparatus 200 of the second embodiment will be described. In the following description, it demonstrates mainly the difference with the structure of the said vegetable disinfection apparatus 100, and its control method. In addition, in the vegetable sterilizing apparatus 200, the same code|symbol is attached|subjected to the same structure as the above-mentioned vegetable sterilizing apparatus 100, and the detailed description is abbreviate|omitted.

[0056] image 3 It is a block diagram of the vegetable sterilization apparatus 200 of 2nd Embodiment. In the vegetable sterilizing device 200 , an air supply port 31 and an air supply fan 32 for supplying air to the section 30 formed above the ozone water sterilizing tank 3 are connected to the above-mentioned vegetable sterilizing device 100 . The control of the air supply fan 32 is performed by the arithmetic...

no. 3 approach

[0062] Next, refer to Figure 5 as well as Figure 6 , the structure and control method of the vegetable sterilization apparatus 300 of the third embodiment will be described. In the following description, it demonstrates mainly the point which differs from the structure of the above-mentioned vegetable sterilization apparatus 100,200, and its control method. In addition, in the vegetable sterilizing apparatus 300, the same code|symbol is attached|subjected to the same structure as the above-mentioned vegetable sterilizing apparatus 100,200, and the detailed description is abbreviate|omitted.

[0063] Figure 5 It is a block diagram of the vegetable sterilization apparatus 300 of 3rd Embodiment. In the vegetable sterilizing apparatus 300, the gas supplied to the section 30 in the above-mentioned vegetable sterilizing apparatus 200 is not air but ozone gas. Therefore, unlike the vegetable sterilizing device 200 described above, the vegetable sterilizing device 300 includes ...

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Abstract

Provided are a vegetable sterilization apparatus and a method for production of sterilized vegetables, with which leakage of ozone gas to the outside is more reliably preventable, while minimizing ozone gas desorption. The vegetable sterilization apparatus (100) is provided with a sterilization tank (3) for sterilizing vegetables (V) through immersion in ozone water, and a compartment (30) above the ozone water held in the sterilization tank (3) is airtight. This method for production of sterilized vegetables is carried out in an ozone water sterilization tank (30) in which ozone water is held and the space above the ozone water held therein is airtight, and includes: a sterilization step for immersing vegetables in ozone water and carrying out sterilization; an air feed step for increasing the pressure inside a pre-wash tank (20) and a post-wash tank (40) provided as a previous stage and a subsequent stage of the ozone water sterilization tank (30), to a level above the pressure inside the ozone water sterilization tank (30); and a transport step for transporting the vegetables between the ozone water sterilization tank (30), and the pre-wash tank (20) and the post-wash tank (40) that were brought to elevated pressure in the air feed step.

Description

technical field [0001] The invention relates to a vegetable sterilizing device and a production method of sterilized vegetables. Background technique [0002] Demand for fresh-cut vegetables, which are packaged vegetables that can be eaten directly or cooked, is increasing. Fresh-cut vegetables are produced by cutting vegetables harvested from farms, but most of the harvested vegetables are covered with dirt such as mud and live bacteria. Therefore, in many cases, vegetables harvested from the field are cut, washed with a neutral detergent, etc., and sterilized with an aqueous solution of sodium hypochlorite, etc., to produce fresh-cut vegetables. [0003] As a method of sterilizing living bacteria adhering to vegetables, a method using an aqueous solution of sodium hypochlorite is known from the viewpoint of ease of handling and low cost. Vegetables are sterilized by immersing them in a sodium hypochlorite aqueous solution for a predetermined time. However, when chlorine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/153A23L3/3589A23N12/02
CPCA23B7/153A23L3/3589A23N12/02
Inventor 末松孝章秦和博
Owner HITACHI LTD