Showing papers by "Universidade Federal de Pelotas published in 1941"

Primeiro relato de Salmonella enterica e Campylobacter spp. isolados de Garibaldi (Chrysomus ruficapillus) e Canário-da-terra (Sicalis flaveola) silvestres

Abstract: Some species of wild birds have been identified as reservoirs of Campylobacter e Salmonella, they may exert as disseminators of these microorganisms. However, in Brazil, there is no study on the role of wild birds in the transmission of these two pathogens. This study aimed at searching the occurrence of Campylobacter and Salmonella in wild birds that feed in the rice paddies. By using mist nets 23 garibaldis (Chrysomus ruficapillus), one rolinha-picui (Columbina picui) and one canario-da-terra (Sicalis flaveola) were captured. The birds stool samples were collected using swabs, and they were processed for searching Campylobacter spp. and Salmonella enterica. Eight (32 %) fecal samples collected from C. ruficapillus were Campylobacter-positive and six (24 %) were positive to Salmonella enterica; five (20 %) samples collected from C. ruficapillus and one (4%) from S. flaveola were positive to Salmonella enterica. The two birds C. ruficapillus and S. flaveola showed to be reservoirs of Campylobacter and Salmonella, and they can be potential transmitters of these pathogens. This study is the first report on the isolation of Campylobacter and Salmonella from wild birds C. ruficapillus and S. flaveola.

Análise laboratorial de bolos destinados para público infantil e comparação com as informações nutricionais contidas nos rótulos e adequação à legislação

Abstract: The Brazilian Health Surveillance Agency settles the regulation to the nutritional characteristics labeling and on the mandatory article in all of the packed products by means of the Resolution no 360. The asserted contents declared in the label should not exceed 20 % of the actual value. This study evaluated the physic-chemical composition of cakes for children,and these data were compared with the nutritional information on the label and their adequacy to the Brazilian regulation was investigated. Cake samples of 13 different flavors and from three brands (A, B and C) were analyzed. Humidity, ashes and sodium were determined following the methods established at Adolfo Lutz Institute. The lipids, proteins and fibers determinations were performed following the Association of Official Analytical Chemists methodology. Carbohydrates contents was obtained by calculating the difference. Of the analyzed samples, none of them complied with the legislation in all of the nutrients. The brand B and the fiber and sodium nutrients were the mostly noncompliant findings. Concerning the fiber and sodium contents, they were usually smaller and greater, respectively, than those values reported in the labels.

Comportamento de Escherichia coli entero-hemorrágica, enteropatogênica e enteroinvasiva em ambrosia

Abstract: Ambrosia is a type of Dulce de Leche hand-made with milk, eggs and sugar, widely consumed in South America, and it is commonly sold in street markets, supermarkets and candy shops. Food contamination by pathogenic micro-organisms usually occur during the processing steps, at the distribution centers, at the retail market or in the consumer home. This study aimed at evaluating the behavior of the pathogenic strains of Escherichia coli enterohemorrhagic (EHEC) ATCC 43895, enteropathogenic (EPEC) INCQS 00182 and enteroinvasive (EIEC) ATCC 43893 in ambrosia samples. Aliquots of ambrosia were experimentally contaminated by the strains analyzed in this study. Detections of the inoculated microorganisms were done at 0, 1, 2, 3, 4, 5, 10, 20 and 30 days of storage. EHEC was recovered from all of analyzed samples until five days after infection. EPEC survived in ambrosia and it was isolated until the fourth day of the experiment. EIEC strain remained viable during the 30 days of storage. The analyzed pathogenic strains of E. coli showed different behavior in ambrosia, but all of them demonstrated potential danger to the consumers health. This study works for warning to adopt appropriate hygiene and sanitary actions during the ambrosia production, packaging and manipulation.