# US 2013/0156907 A1 · Process for sanitizing objects

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- Number: US 2013/0156907 A1
- Document ID: US20130156907A1
- Status: Published application
- Kind: A1
- Application number: 13/817,114
- Filed: 2011-08-22
- Published: 2013-06-20
- Earliest claimed: 2010-08-23
- Assignees: BioSafe Systems LLC
- Inventors: Robert Larose
- Web page: https://patentgrep.com/patent/US20130156907A1

## CPC

- A23B 7/144: in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B 2/53: with ultraviolet light
- A23B 2/729: Organic compounds; Microorganisms; Enzymes
- A23B 2/742: Organic compounds containing oxygen
- A23B 2/746: with singly-bound oxygen
- A23B 2/762: Organic compounds containing nitrogen
- A23B 2/788: Inorganic compounds
- A23B 7/015: Preserving by irradiation or electric treatment without heating effect
- A23B 7/154: Organic compounds; Microorganisms; Enzymes
- A23B 7/157: Inorganic compounds
- A23B 9/18: in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B: PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES

## Abstract

A process for sanitizing objects is comprised of the steps of: (1) contacting the object with a dry fog in an enclosed sanitization zone wherein the dry fog is comprised of droplets having a diameter of 4-5 microns and wherein the droplets comprise an aqueous solution of a sanitizing agent for a time sufficient to produce a substantially dry sanitized object and a residual amount of dry fog; (2) removing the substantially dry, sanitized product from the enclosed zone while simultaneously removing the residual dry fog and passing the residual dry fog through a treatment zone whereby unreacted sanitizing agent is removed from the dry fog. The disclosed process yields substantially dry sanitized objects that do not require rinsing with water.

## Claims

### Claim 1

A process for sanitizing an object comprising the steps of: (1) contacting an object with a dry fog in an enclosed sanitization zone for a time sufficient to produce a substantially dry sanitized object and a residual amount of dry fog wherein the dry fog is comprised of droplets having a diameter of 4-5 microns and wherein the droplets comprise an aqueous solution of a sanitizing agent; (2) removing the substantially dry, sanitized product from the enclosed zone while simultaneously removing the residual dry fog and passing the residual dry fog through a treatment zone whereby unreacted sanitizing agent is removed from the dry fog.

### Claim 2 (depends on 1)

The process of claim 1 wherein the sanitizing agent is chlorine, quaternary ammonium compounds, hydrogen peroxide, peroxycarboxylic acids or a combination thereof.

### Claim 3 (depends on 3)

The process of claim 3 wherein the sanitizing agent is peracetic acid and hydrogen peroxide.

### Claim 4 (depends on 1)

The process of claim 1 wherein the sanitizing agent is peracetic acid.

### Claim 5 (depends on 1)

The process of claim 1 wherein the object is an article of produce.

### Claim 6 (depends on 5)

The process of claim 5 wherein the article of produce is a fruit, a vegetable, a nut or combinations thereof.

### Claim 7 (depends on 5)

The process of claim 5 wherein the article of produce is a vegetable.

### Claim 8 (depends on 7)

The process of claim 7 wherein the vegetable is a tomato.

### Claim 9 (depends on 6)

The process of claim 6 wherein the article of produce is a fruit.

### Claim 10 (depends on 8)

The process of claim 8 wherein the fruit is a blueberry, a strawberry or combinations thereof.

### Claim 11 (depends on 1)

The process of claim 1 wherein UV radiation is present in the sanitization zone.

### Claim 12

A process for sanitizing produce comprising the steps of: (1) contacting an item of produce with a dry fog contained in a stainless steel box-like enclosure mounted over a moving belt that carries the produce into and out of the enclosure through openings in opposite walls of the enclosure wherein the produce is contacted for a time sufficient to produce substantially dry sanitized produce and a residual amount of dry fog wherein the dry fog is comprised of droplets having a diameter of 4-5 microns and wherein the droplets comprise an aqueous solution of a sanitizing agent; (2) removing the substantially dry, sanitized produce from the stainless steel enclosure while simultaneously removing the residual dry fog and passing the residual dry fog through a treatment zone whereby unreacted sanitizing agent is removed from the dry fog.

### Claim 13 (depends on 12)

The process of claim 12 wherein the sanitizing agent is chlorine, quaternary ammonium compounds, hydrogen peroxide, peroxycarboxylic acids or a combination thereof.

### Claim 14 (depends on 13)

The process of claim 13 wherein the sanitizing agent is peracetic acid and hydrogen peroxide.

### Claim 15 (depends on 12)

The process of claim 12 wherein the sanitizing agent is peracetic acid.

### Claim 16 (depends on 12)

The process of claim 12 wherein the item of produce is a fruit, a vegetable, a nut or combinations thereof.

### Claim 17 (depends on 16)

The process of claim 16 wherein the article of produce is a vegetable.

### Claim 18 (depends on 17)

The process of claim 17 wherein the vegetable is a tomato.

### Claim 19 (depends on 16)

The process of claim 16 wherein the article of produce is a fruit.

### Claim 20 (depends on 19)

The process of claim 19 wherein the fruit is a blueberry, a strawberry or combinations thereof.
