Avaliação da contaminação microbiana de latas de cerveja comercializadas na festa de Trindade - Go

Abstract

Most confirmed cases of foodborne illnesses are directly involved with faults in the production process, which are the main triggers of food contamination. The main pathogens related infections of the gastrointestinal tract transmitted by food are: Salmonella, Shigella, Campylobacter, Escherichia coli, Listeria, Vibrio, Cryptosporidium, Cyclospora Rotavirus and Norovirus. The aim of this study was to evaluate the microbiological quality of the beer cans's surfaces of various brands marketed by sellers during the Festa do Divino Pai Eterno em Trindade (GO). We collected a total of 48 samples of aluminum cans of various brands in the central and peripheral regions of the city, which were subjected to cooling by immersion in ice or refrigerator. The samples were collected randomly in restaurants, bars and street vendors. The upper outer cans was subjected to count Staphylococcus aureus, total coliforms, Escherichia coli, yeast and mold. For the enumeration of E. coli and total coliforms, the contamination levels were higher in cans subjected to cooling by immersion in ice. The counts of coagulase positive Staphylococcus, yeasts and molds showed higher levels of contamination in cans cooled by the refrigerator. Despite the low level of contamination, this study reveals that drink cans with contents supposedly sterile, can carry pathogenic microorganisms through its outer packaging, representing risk especially for children and elderly people who are immunosuppressed.