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Disinfection aid for ozone disinfection and method for ozone disinfection

An ozone sterilization and auxiliary technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of rubber, metal, plastic easily corroded, high cost, increased device load, etc., to reduce load, Cost reduction, high sterilization effect

Inactive Publication Date: 2012-12-19
LION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the amount of ozone used increases, the cost will increase due to the need for a larger ozone generator
Furthermore, the rubber, metal, plastic, etc. of the parts in contact with the ozone in the sterilization device are easily corroded, and the load on the device is also increased.

Method used

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  • Disinfection aid for ozone disinfection and method for ozone disinfection
  • Disinfection aid for ozone disinfection and method for ozone disinfection
  • Disinfection aid for ozone disinfection and method for ozone disinfection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12

[0167] Escherichia coli (NBRC3972 strain) was cultured on SCD agar medium (manufactured by Nissui Pharmaceutical Co., Ltd.) at 37°C for 24 hours (hereinafter, sometimes referred to as "pre-preculture"), and the cultured Escherichia coli was further mixed with the above-mentioned The previous pre-cultivation was performed again in the same manner (hereinafter, sometimes referred to as "pre-culture"), and the pre-cultured Escherichia coli was used for a bactericidal test.

[0168] The pre-cultured Escherichia coli was dispersed in a buffer solution added with peptone (3.56 g of potassium dihydrogen phosphate, 18.2 g of disodium hydrogen phosphate dodecahydrate, 4.3 g of sodium chloride, and 1.0 g of peptone were dissolved in 1 L of pure water, In the liquid obtained by neutralizing it to pH 7.0), the number of bacteria prepared was 1.0×10 using the transmittance of light with a wavelength of 660 nm as an index. 8 Bacterial solution around cfu / mL.

[0169] Pure water was added t...

Embodiment 13～32

[0189] Escherichia coli (NBRC3972 strain) was cultured on SCD agar medium (manufactured by Nissui Pharmaceutical Co., Ltd.) at 37°C for 24 hours (pre-culture), and the cultured Escherichia coli was further cultured again in the same manner as the previous pre-culture (Pre-culture), the pre-cultured Escherichia coli was used for the bactericidal test. Dilute the pre-cultured Escherichia coli with sterilized water, and use the transmittance of light with a wavelength of 660nm as an index to prepare a bacterial count of 2.0×10 7 Bacterial dilutions of about cfu / mL. Then, the bacterial dilution was dispersed in 5:5 in nutrient broth medium (Nutrientbroth) (manufactured by Kanto Chemical Co., Ltd.) to prepare 1.0×10 7 Bacterial solution around cfu / mL.

[0190] Next, on SUS304 (hairline treatment product) of 2 cm in length and 2 cm in width, silicone rubber (manufactured by Taiga Superima Co., Ltd.), and surface ground glass (polished to No. 1200 water-resistant abrasive paper pro...

Embodiment 33～56

[0240] Using 500g of lettuce as the object to be treated by ozone sterilization, the operations of pre-washing, sterilizing washing, rinsing and dehydration were carried out as shown below with reference to the processing of common fresh food factories. The transfer of the lettuce in each of the above-mentioned operations was carried out in a stainless steel basket (zaru) sterilized with ethanol.

[0241] (pre-washing process)

[0242] The lettuce was prewashed for 2 minutes using a bucket-type washing machine (Denki Baker) (manufactured by Matsushita Electric Industrial Co., Ltd., N-Bk2) that stored 7 L of tap water.

[0243] (Sterilization process)

[0244] In the washing tank 41a of the double-tank type washing machine 41 in the described sterilizing device 4, store 40L of bactericidal auxiliary agent, stir, and make miniaturized ozone-containing bubbles produce simultaneously, implement the ozone sterilizing of lettuce for 10 minutes, so The above-mentioned bactericidal ...

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Abstract

A disinfection aid for ozone disinfection, which consists of an aqueous solution that contains (A) an aluminum compound capable of forming aluminum ions in an aqueous solution and (B) at least one acid selected from among phosphoric acid, acetic acid, citric acid, malic acid, succinic acid, gluconic acid, lactic acid, and L-tartaric acid and that has a pH of 1.0 to less than 5.0; and a method for ozone disinfection, which comprises subjecting an object to be disinfected to ozonization using the disinfection aid. Thus, a disinfection aid which, even when a smaller amount of ozone is used, can ensure high disinfection effect without a load on a disinfection apparatus or an object to be disinfected, and a low-cost method for ozone disinfection using the disinfection aid are provided.

Description

technical field [0001] The invention relates to a sterilizing auxiliary agent for ozone sterilization and an ozone sterilizing method. [0002] This application claims priority based on Japanese Patent Application No. 2010-091627 for which it applied in Japan on April 12, 2010, and uses the content here. Background technique [0003] In recent years, in the sterilization of fresh food and medical equipment, or in-situ sterilization and washing of factory lines, more safe and reliable sterilization treatment has been pursued. Among them, ozone has attracted attention because it has strong oxidizing properties, can be produced from oxygen, and does not remain in its original form after sterilization and returns to oxygen. As an ozone sterilizing method, generally, a method of aerating ozone gas (ozone aeration method) in water to be treated in which an object to be treated is immersed, and a method in which an object to be treated is immersed in ozone water in which ozone is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/00A01N25/00A01P3/00A61L2/20C02F1/78
CPCC02F1/50C02F2209/06A01N59/00A61L2/183A01N59/06C02F1/78A01N25/22A01N37/02A01N37/04A01N37/06A01N37/36A01N59/26A01N2300/00
Inventor 竹内祥训西村园子渡部慎一林亚衣子长谷川贵通久保园隆康
Owner LION CORP
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