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Food Sanitation

What is RGF’s Advanced Oxidation Sanitation Program?

RGF has developed a three step program of advanced oxidation technologies for food sanitation involving air, water and surface sanitation processes.

What oxidizers are used in the RGF Program?

Depending on the application, RGF utilizes Photohydroionization®, ozone, super oxide ions, UVC light rays and hydroxyl radicals.

What is Photohydroionization®?

Photohydroionization® (PHI) is an RGF patented technology for air and surface sanitation utilizing non-penetrating ionizing broad spectrum UV radiation targeted on a quad metallic catalyst. The process results in multiple oxidizers, including hydro-peroxides (H2O2).

Is it safe for employees to work in rooms treated with PHI?

Yes, the hydro-peroxides are considered friendly oxidizers, which means they revert back to oxygen and hydrogen. The low levels that are used present no risk to employees.

What is the major difference between food irradiation and food Photohydroionization®?

Food irradiation utilizes penetrating radiation, which sanitizes throughout the meat or poultry. Food Photohydroionization® basically provides the same level of sanitation, but only on the food surface. It is not penetrating; however, most microbial or bacterial contamination is on the surface.

What are the advantages of Photohydroionization®?

The food is not irradiated with penetrating radiation. As such, it does not have to be labeled with the radiation symbol, which carries with it a negative stigma.

Should we use a label for the food purified with Photohydroionization®?

We recommend that you should brand and market your products with something such as RGF Sunshine Pure®.

What kind of log reductions can I expect?

Typical reductions are 1-1/2 to 2 logs. Longer exposures will result in better reductions. Each site and application is unique, so general statements are not practical. PHI has achieved 6 log reductions in Lab tests.

What is ozone?

Ozone is a form of oxygen. It is a strong cleaning, purification and oxidizing agent. It reacts with organics to oxidize unpleasant odors and kills bacteria, viruses, mold and fungus. Ozone is O3 or enriched oxygen containing three atoms instead of two.

Does RGF use ozone for air treatment?

No, RGF utilizes PHI for air and surface treatment. Ozone levels in air is difficult to regulate and monitoring, as well as safety alarms are necessary. RGF only utilizes ozone for aqueous applications.

Is ozone safe for water treatment?

Ozone is produced on site. There are no dangerous chemicals to transport, store or handle. Perhaps even more important, the chances of overdosing with dangerous and hazardous chemicals is limited.

Is ozone effective on E. Coli in water?

Ozone destroys E. Coli 3,125 times faster than chlorine.

Does RGF have a technology to destroy pathogens in process liquids such as brine and marinades?

Yes, RGF manufactures a line of fluid sterilizers utilizing high output UVC energy. These are available in multiple flow rates.

I’ve heard of the term “Advanced Oxidation Process” What is it?

Advanced Oxidation Process (AOP) refers to increasing the reactivity of oxidizers. This is performed by combining multiple oxidizers to react via a free radical pathway. These are three methods commonly used to attain AOP:

  1. Hydrogen Peroxide (O3 + H2O2)
  2. Ultraviolet Radiation (O3 + UV)
  3. H2O2 + UV

Is AOP effective?

Many molecules that are resistant to one oxidizer alone are degraded by this free radical process. AOP is used most often to control organics (taste, odor, color, THM precursors, micro pollutants and pesticides). This is not to say that AOP is required for oxidation of organics, but in some instances it may be preferred.

I’ve heard of EPA and state indoor air studies or reports giving ozone a negative rating.

This is true. Various state and Federal agencies have found ozone generators or lighting air generators put out ozone far in excess of legal limits. One report by the University of Tulsa found room concentration of two ppm, which is fifteen times the legal limit and twice the human tolerance level.

Will food last longer if it exposed to PHI?

Yes, PHI will kill airborne and surface bacteria, fungus and mold spores, thereby eliminating the largest reason for food spoilage.

Will PHI affect ethylene gas in cold storage facilities?

Yes, PHI has been tested and will reduce ethelyne gas, thereby extending the shelf life of fruits and produce.