Ozone as a fungacidal and aflatoxin reduction

Ozone as a fungacidal and aflatoxin reduction in peanuts

Efficacy of ozone as a fungicidal and  detoxifying agent of aflatoxins in peanuts.

de Alencar ER1, Faroni LR, Soares Nde F, da Silva WA, Carvalho MC.



Peanut contamination by fungi is a concern of processors and consumers owing to the association of these micro-organisms with quality deterioration and aflatoxin production. In this study the fungicidal and detoxifying effects of ozone on aflatoxins in peanuts was investigated. Peanut kernels were ozonated at concentrations of 13 and 21 mg L⁻¹ for periods of 0, 24, 48, 72 and 96 h.


Ozone was effective in controlling total fungi and potentially aflatoxigenic species in peanuts, with a reduction in colony-forming units per gram greater than 3 log cycles at the concentration of 21 mg L⁻¹ after 96 h of exposure. A reduction in the percentage of peanuts with internal fungal populations was also observed, particularly after exposure to ozone at 21 mg L⁻¹. A reduction in the concentrations of total aflatoxins and aflatoxin B1 of approximately 30 and 25% respectively was observed for kernels exposed to ozone at 21 mg L⁻¹ for 96 h.


It was concluded that ozone is an important alternative for peanut detoxification because it is effective in controlling potentially aflatoxigenic fungi and also acts in the reduction of aflatoxin levels in kernels.

Copyright © 2011 Society of Chemical Industry.

J Sci Food Agric. 2012 Mar 15;92(4):899-905. doi: 10.1002/jsfa.4668. Epub 2011 Sep 23.


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Ozone use for mold remediation in homes and buildings

Mold Expert Offers Ozone Gas Decontamination of Ohio Homes & Buildings To Kill Germs & Mold


Certified Environmental Hygienist Phillip Fry recommends that Ohio houses and commercial buildings be germ and mold decontaminated at least annually with high output ozone gas.

Montrose, MI, September 25, 2014 — To kill disease-causing bacteria, viruses, and toxic mold growth that frequently infest over half of the homes and workplaces in Ohio, Certified Environmental Hygienist Phillip Fry recommends that buildings in the Buckeye State be treated at least annually with eight hours of high output ozone gas throughout the building, including inside heating/cooling air ducts, attic, basement, and crawl space.

High output ozone gas is an effective antimicrobial oxidizer that can be safely applied as a disinfectant, sanitizer, and decontaminating agent in both residences and commercial buildings, according to Mr. Fry, who is also a Professional Industrial Hygienist, co-manager of EnviroFry, and webmaster since 1999 of the mold information website www.moldinspector.com, plus www.ohiomoldinspection.com.

Ozone, which has been validated by scientists since 1906 for a multitude of pathogens in an array of applications, kills all known human pathogens, such as Ebola, H7N9 avian flu, SARS, and almost all other disease-causing viruses, bacteria, and fungal species such as the health-destroying Stachybotrys, Aspergillus, Penicillium, and Chaetomium toxic mold species.

Ozone is safe to use provided that are no workers or residents, pets, or live plants inside the building during the actual ozone treatment process, and for one to two hours afterwards.

Studies have proven that ozone is more efficient and has a higher oxidation kill potential than most traditional disinfectant/sanitizers (e.g. chlorine, hydrogen peroxide, peroxyacetic acid and chlorine dioxide), and its use eliminates the need to alternate different sanitizers because germs and viruses cannot build a tolerance to ozone. Ozone is non-corrosive to the surfaces of buildings and furnishings, and leaves no residue (treated surfaces never need a final fresh water rinse).

In depth information on the use of ozone for home and building decontamination is provided at www.ozonegeneratorkillsmold.com.

EnviroFry provides ozone home and building decontamination, plus mold inspection, mold testing, and mold remediation services in Akron, Canton, Cincinnati, Cleveland, Columbus, Dayton, Findlay, Lima, Mansfield, Marietta, Medina, Springfield, Toledo, Youngstown, Zanesville, and all other Ohio communities.

Elevated levels of indoor germs and mold have been linked to over 100 major health problems, including lung cancer, breathing problems, chronic coughing and sneezing, chronic sinusitis, chronic headaches and memory problems, chronic tiredness, skin rashes, and many other serious medical problems that are listed on the home page of the mold information website www.moldinspector.com.

For free answers to germ decontamination and mold questions and problems, phone mold consultant Phillip Fry toll-free 1-866-300-1616, or 1-810-639-0523, or Phillip’s cell phone 1-480-310-7970, or email phil@moldinspector.com, or visit the website www.moldexpertconsultants.com.