RESUMO

O presente estudo teve por objetivo avaliar e comparar a qualidade microbiológica da carne suína in natura comercializada em feiras livres e estabelecimentos comerciais do Rio de Janeiro, bem como, verificar as condições higiênico-sanitárias dos locais de comercialização. Foram coletadas 20 amostras de pernil suíno in natura comercializados em 20 diferentes feiras livres no estado do Rio de Janeiro e 20 amostras de Pernil suíno in natura comercializados, resfriados e adquiridos em 20 estabelecimentos comerciais do Rio de Janeiro. Após obtenção, as amostras foram encaminhadas para o Laboratório de Controle Microbiológico de Alimentos da Universidade Castelo Branco (UCB), para realização das análises microbiológicas. De acordo com os resultados das avaliações higiênico-sanitárias dos locais onde as amostras de pernil suíno in natura foram obtidas, observou-se uma média de 57,60% e 13,64% de não conformidade nas feiras livres e nos estabelecimentos comerciais, respectivamente. A presença de Salmonella sp. foi verificada em 14 (70%) e 17 (85%) amostras de pernil suíno in natura coletadas em feiras livres e estabelecimentos comerciais, respectivamente, estando estas amostras em não conformidade com a legislação vigente, sendo consideradas impróprias para o consumo. A análise dos resultados sugere que a qualidade microbiológica do pernil suíno in natura comercializado em feiras livres e estabelecimentos varejistas não atende às exigências da legislação que regulamenta esse setor.(AU)

The present study aimed to evaluate and compare microbiological quality of pork meat sell in street markets and in commercial establishments in Rio de Janeiro state, the hygienic-sanitary conditions of those places were also evaluated. It were collected 40 samples of fresh pork meat, 20 samples from street market and 20 samples from commercial establishments in Rio de Janeiro State. The samples were transported refrigerated to the Laboratory of Microbiological Control of Food of the Castelo Branco University for analyzing. The results showed an average of 57.60% and 13.64% of nonconformity respectively for the street market and for commercial establishments. The presence of Salmonella sp. was verified in 14 (70%) of the samples collected in the street markets and 17 (85%) for those collected in the commercial establishments, and so were not in compliance with the current legislation and were considered unfit for human consumption. The results suggests that the microbiological quality of pork leg meat marketed in both streets markets or commercial establishments in Rio de Janeiro State are not in compliance with Brazilian applicable laws requirements.(AU)

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RESUMO

This study aimed to evaluate the aflatoxin B1 (AFB1) adsorption capacity of the seaweed Lithothamnium calcareum in vitro and to prevent aflatoxicosis in broiler chickens. In vitro adsorption assays were performed at a single AFB1 concentration (1 µg/mL) and four seaweed concentrations (0.50, 1, 1.5 and 2 mg/mL) at pH 3 and pH 6. The maximum adsorption was obtained at the lowest seaweed content (0.62 and 0.78 µg/mg). Male broiler chickens (256) were housed in metallic cages. Experimental diets were T1 (control), 18 µg/kg AFB1; T2, 18 µg/kg AFB1 and 0.2% L. calcareum (2.0 kg/ton); T3, 1018 µg/kg AFB1; and T4, 1018 µg/kg AFB1 and 0.2% L. calcareum. Performance parameters (live weight, weight gain and feed conversion rate) improved when seaweed was applied. The aspartate-aminotransferase and alanine-aminotransferase levels tend to decrease in birds receiving only seaweed, also the uric acid levels reduced significantly (P Ë‚ 0.05), while birds receiving only AFB1 increased the biochemical parameter levels. The livers from animals fed with AFB1 showed histopathological alterations with disorganization of periportal hepatocytes, necrosis with multifocal coagulation and mild fat degeneration; the livers from T4 had normal appearance. Lithothamnium calcareum was able to prevent aflatoxicosis in broiler chickens and also improved their zootechnical performance.

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