Efficacy of a Sanitizer and Disinfectants To Inactivate Encephalitozoon intestinalis Spores

Authors: Ortega, Ynes R.¹; Torres, Maria P.¹; Van Exel, Siara¹; Moss, Lauren¹; Cama, Vitaliano²

Source: Journal of Food Protection®, Volume 70, Number 3, March 2007 , pp. 681-684(4)

Publisher: International Association for Food Protection

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Abstract:

The order Microsporidia contains a number of ubiquitous pathogens that can infect various animals, including humans. Enterocytozoon bieneusi and Encephalitozoon intestinalis have been associated with gastrointestinal illness in humans. The effect of four disinfectants—ammonium hydroxide, hydrogen peroxide, and two commercial disinfectants containing peroxyacetic acid (Tsunami) and N-alkyl dimethyl benzyl ammonium chloride (Timsen)—on E. intestinalis spores was examined using exposure times of 1, 5, and 15 min. Spore viability was determined in vitro with RK-13 cells. Hydrogen peroxide was most efficient at inactivating microsporidial spores at all tested concentrations and treatment times, whereas ammonium hydroxide was effective only at the highest concentration at all exposure times. Tsunami (40 μg/ml) and Timsen (200 and 400 ppm) could inactivate spores when incubated for 5 and 15 min.

Document Type: Research article

Affiliations: 1: Center for Food Safety and Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, Georgia 30223, USA 2: Johns Hopkins University, Baltimore, Maryland 21218, USA

Publication date: 2007-03-01

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First published in 1937, the Journal of Food Protection^®, is a refereed monthly publication. Each issue contains scientific research and authoritative review articles reporting on a variety of topics in food science pertaining to food safety and quality. The Journal is internationally recognized as the leading publication in the field of food microbiology with a readership exceeding 11,000 scientists from 70 countries. The Journal of Food Protection^® is indexed in Index Medicus, Current Contents, BIOSIS, PubMed, Medline, and many others.

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Efficacy of a Sanitizer and Disinfectants To Inactivate Encephalitozoon intestinalis Spores

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