USE OF GASEOUS OZONE FOR SANITATION COLD ROOM STORAGE

• Autor(a) principal: Cavalcante, Daniel Augusto
• Data de Publicação: 2014
• Outros Autores: Leite Júnior, Bruno Ricardo de Castro, Tribst, Alline Artigiani Lima, Cristianini, Marcelo
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista do Instituto de Laticínios Cândido Tostes
• Texto Completo: https://www.revistadoilct.com.br/rilct/article/view/280
• topic: storage rooms; ozone gas; air microbiological quality; Microbiologia, sanificação, higienização; local de estocagem; gás ozônio; qualidade microbiológica do ar

This work evaluated the ozone application for sanitation of a cold room used tostore Minas Frescal cheese during 120 days. The microbiological quality of the air, the room walls and the room door were evaluated during 60 days with and with no additionof ozone at 0,03 mg.L-1. The air sedimentation technique was applied for the evaluationof the air quality (aerobic mesophilic microorganisms and yeasts and moulds) andthe swab technique was used for the evaluation of internal surface counts of aerobicmesophilic microorganisms. Reductions of 0.81 and 1.01 log cycles in the room air werecaused by air ozonation. Additionally, significant decimal reductions around 0.50 logwere observed in the walls and door swabs of the cold room. Therefore, ozone gas hasimproved microbiological quality of the surfaces and the air of cold room. This suggestsozone as an alternative method for disinfection of rooms.