Isolation of Listeria species from some Brazilian meat and dairy products

Destro, M.T.; Serrano, Antônio de Melo; Kabuki, Dirce Yorika

doi:10.1016/0956-7135(91)90147-o

Cited by 39 publications

(36 citation statements)

References 25 publications

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“…Although L. monocytogenes is widespread in nature as well as in the dairy environment, our results and those of other investigators confirm that pasteurized milk is not a common source of this pathogen in Brazil (7,39). However, our data also confirmed that MFC can be a source of L. monocytogenes to consumers even when it is prepared with pasteurized milk (6,13,11). The observed brand prevalence of 10% and MFC prevalence of 11% pertain specifically to the Juiz de Fora region of Brazil and may or may not be reflective of the "true" prevalence of L. monocytogenes in QF in other regions of Brazil or in other areas of the world.…”

Section: Discussionsupporting

confidence: 80%

“…Listeria monocytogenes has also been isolated from Latin-style soft cheese from South America, notably from Minas frescal cheese (MFC) in Brazil. For example, Destro et al (13) found 2 of 20 samples (10%) of MFC made with pasteurized milk to be positive for L. monocytogenes. Delgado da Silva et al (11) recovered L. monocytogenes from 7 of 17 samples (41%) of MFC made from raw milk and from 1 of 33 samples (3%) of MFC made from pasteurized milk.…”

mentioning

confidence: 99%

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Retail Survey of Brazilian Milk and Minas Frescal Cheese and a Contaminated Dairy Plant To Establish Prevalence, Relatedness, and Sources of Listeria monocytogenes Isolates

Brito

Santos

Arcuri

et al. 2008

Appl Environ Microbiol

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A study was designed to recover Listeria monocytogenes from pasteurized milk and Minas frescal cheese (MFC) sampled at retail establishments (REs) and to identify the contamination source(s) of these products in the corresponding dairy processing plant. Fifty milk samples (9 brands) and 55 MFC samples (10 brands) were tested from REs located in Juiz de Fora, Minas Gerais, Brazil. All milk samples and 45 samples from 9 of 10 MFC brands tested negative for L. monocytogenes; however, "brand F" of MFC obtained from REs 119 and 159 tested positive. Thus, the farm/plant that produced brand F MFC was sampled; all samples from the milking parlor tested negative for L. monocytogenes, whereas several sites within the processing plant and the MFC samples tested positive. All 344 isolates recovered from retail MFC, plant F MFC, and plant F environmental samples were serotype 1/2a and displayed the same AscI or ApaI fingerprints. Since these results established that the storage coolers served as the contamination source of the MFC, plant F was closed so that corrective renovations could be made. Following renovation, samples from sites that previously tested positive for the pathogen were collected from the processing environment and from MFC on multiple visits; all tested negative for L. monocytogenes. In addition, on subsequent visits to REs 159 and 119, all MFC samples tested negative for the pathogen. Studies are ongoing to quantify the prevalence, levels, and types of L. monocytogenes in MFC and associated processing plants to lessen the likelihood of listeriosis in Brazil.

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Section: Discussionsupporting

confidence: 80%

mentioning

confidence: 99%

Retail Survey of Brazilian Milk and Minas Frescal Cheese and a Contaminated Dairy Plant To Establish Prevalence, Relatedness, and Sources of Listeria monocytogenes Isolates

Brito

Santos

Arcuri

et al. 2008

Appl Environ Microbiol

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“…Studies related to the occurrence of Listeria monocytogenes in cheeses produced in Brazil have shown contamination of 1.40% to 41.17%. (Destro, 1991;Oliveira, 1993;Schwab, 1994;Silva et al,1998;Souza, 2002;Borges et al, 2003;Branco et al, 2003;Ramos, Costa 2003).…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Listeria monocytogenes in cheese and ice cream produced in the State of Paraná, Brazil

Abrahão¹,

Abrahão²,

Monteiro³

et al. 2008

Rev. Bras. Cienc. Farm.

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“…No Brasil, existem vários registros da presença de L. monocytogenes em leite e derivados [6,13,24,38,42]. Dentre eles, SILVA, HOFER, TIBANA [39], pesquisando a contaminação em queijos produzidos no Rio de Janeiro, encontraram 19,6% das amostras positivas para L. monocytogenes e, ainda, as mesmas amostras foram também positivas para L. innocua e L. grayi.…”

Section: -Introduçãounclassified

Listeria Spp., Coliformes Totais E Fecais E E.COLI No Leite Cru E Pasteurizado De Uma Indústria De Laticínios, No Estado Da Paraíba (Brasil)

Catão¹,

Ceballos²

2001

Ciênc. Tecnol. Aliment.

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RESUMOInvestigou-se a qualidade microbiológica do leite in natura e na linha de produção (leite recém-pasteurizado e leite ensacado), de uma usina de beneficiamento em Campina Grande-PB. Foi pesquisada a presença de Listeria spp. e sua diversidade de espécies, os níveis de coliformes totais (CT), coliformes fecais (CF) e Escherichia coli. Analisou-se um total de 75 amostras de leite, sendo 45 de leite cru, 15 de leite recém-pasteurizado e 15 de leite ensacado. Os resultados foram reunidos em dois grupos segundo o período de monitoramento: antes e após mudanças no processo de higienização da usina. Foi evidenciada elevada contaminação nas amostras de leite cru nas duas épocas. Na primeira (março-abril/1998), todas as amostras de leite beneficiado estiveram fora dos padrões da legislação vigente para CT e CF; na segunda (maio-agosto/1998), houve acentuada redução dos níveis destas bactérias indicadoras, porém as melhorias na higienização não foram suficientes para solucionar este problema, visto que 11,1% das amostras recém-pasteurizadas estavam fora dos padrões para CT e 33,3% para CF. Das amostras ensacadas, 22,2% estavam fora dos padrões para CT e 44,4% para CF. Comparando-se os resultados de CT, CF, e E.coli nas amostras de leite recém-pasteurizado e não ensacado com as amostras de leite ensacado, foi verificado que as amostras após serem pasteurizadas e ensacadas apresentaram valores de CT e CF levemente mais elevados, sugerindo contaminação durante o processo de ensacamento ou falhas na armazenagem. Observou-se que 33 (73,3%) das amostras de leite cru e 9 (30%) das de leite pasteurizado estavam contaminadas com Listeria spp., sendo identificadas L. monocytogenes em 17 (51,5%) amostras de leite cru e em 9 (100%) de leite beneficiado (4 recém-pasteurizadas e 5 ensacadas). Em relação à diversidade de espécies, nas amostras de leite cru foram encontradas: L. monocytogenes (1,5%). Nas amostras de leite pasteurizado isolaram-se: L. monocyogenes e L. innocua. O conjunto dos resultados evidenciou deficiências higiênico-sanitárias no leite in natura e ao longo do processo de produção, resultando em porcentagens elevadas de amostras que ultrapassaram os valores padrões de CT e CF além de apresentarem-se contaminadas por Listeria spp., com predominância de L. monocytogenes, sugerindo a existência de uma relação direta entre os altos índi-ces de coliformes e a presença de Listeria spp. (PARAÍBA, BRAZIL). The microbiological quality of raw and pasteurized milk was studied along its line production in a dairy factory in Paraíba State, Brazil. Listeria monocytogenes was frequent found in raw milk and the levels of total coliforms (TC), fecal coliforms (FC) and Escherichia coli, were high in the same samples. The results of 75 milk studied samples (45 raw milk, 15 recently pasteurized and 15 sacked), were distributed in two clusters, according its collected period (before and after changes in factory's hygienic process). Both raw samples groups showed high contamination. In the first period (March-April/1998), all the past...

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Isolation of Listeria species from some Brazilian meat and dairy products

Cited by 39 publications

References 25 publications

Retail Survey of Brazilian Milk and Minas Frescal Cheese and a Contaminated Dairy Plant To Establish Prevalence, Relatedness, and Sources of Listeria monocytogenes Isolates

Retail Survey of Brazilian Milk and Minas Frescal Cheese and a Contaminated Dairy Plant To Establish Prevalence, Relatedness, and Sources of Listeria monocytogenes Isolates

Occurrence of Listeria monocytogenes in cheese and ice cream produced in the State of Paraná, Brazil

Listeria Spp., Coliformes Totais E Fecais E E.COLI No Leite Cru E Pasteurizado De Uma Indústria De Laticínios, No Estado Da Paraíba (Brasil)

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