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Abstract The objective of this study was to evaluate the efficacy of the sanitization process using aqueous ozone and chlorination in reducing the microbial load on strawberries subjected to minimal processing. Strawberries were selected, washed in tap water, and sanitized using the following treatments: T1) Immersion in aqueous ozone at 0.2 mg/L for 5 min; T2) Immersion in aqueous ozone at 0.5 mg/L for 5 min; T3) Immersion in aqueous ozone at 1.0 mg/L for 5 min; T4) Chlorination; T5) Control; or T6) Strawberries without sanitization (natural). After sanitization, the fruits were processed, drained, packaged, and stored under refrigeration at 5ºC ± 1ºC for 6 days. Microbiological analyses for coliforms at 35ºC (MPN/g) and counts of filamentous fungi and yeasts (CFU/g) were performed on the day of processing. Microbiological enumeration of coagulase-positive staphylococci, coliforms at 45ºC (MPN/g), and detection of Salmonella spp. were performed on the day of processing and again after 6 days of storage. The microbial count of total coliforms was observed only in T6. Treatments with aqueous ozone were more effective than treatment with chlorine in removing filamentous fungi and yeasts. Contamination by Salmonella spp., Escherichia coli, and coliforms at 45ºC was not observed in the analyzed samples. Author Biography Otniel Freitas-Silva, Empresa Brasileira de Pesquisa Agropecuária (Embrapa), Embrapa Agroindústria de Alimentos, Rio de Janeiro, RJ Possui graduação em Engenharia Agronômica pela Universidade Federal Rural da Amazônia (1988), Mestrado em Agronomia (Proteção de Plantas) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1992) e Doutorado em Engenharia Química e Biológica pela Universidade do Minho, Portugal. Atualmente é pesquisador da Empresa Brasileira de Pesquisa Agropecuária (Embrapa Agroindústria de Alimentos) e docente permanente do Programa de Pós Graduação em Alimentos e Nutrição (PPGAN) da Universidade Federal do Estado do Rio de Janeiro (UNIRIO). Tem experiência na área de Agronomia, com ênfase em Fitopatologia, e segurança e inocuidade das cadeias agro-alimentares, atuando principalmente nos seguintes temas: castanha-do-Brasil, café, fungos e micotoxinas, patologia pós-colheita e segurança alimentar. Downloads PDF-PT (Português (Brasil)) Published 2015-01-30 How to Cite Coelho, C. C. de S., Freitas-Silva, O., Alcantara, I., Silva, J. P. L. da, & Cabral, L. M. C. (2015). Ozone application on ready-to-eat strawberries a food safety alternative to the chlorine use. Health Surveillance under Debate: Society, Science & Technology, 3(1), 61–66. https://doi.org/10.3395/2317-269x.00437 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 3 No. 1 (2015): February Section Articles License Copyright (c) 2015 Health Surveillance under Debate: Society, Science & Technology (Vigilância Sanitária em Debate: Sociedade, Ciência & Tecnología) – “Visa em Debate”

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