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Registros recuperados: 9
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Detection of Bacillus cereus isolated during ultra high temperature milk production flowchart through random amplified polymorphic DNA polymerase chain reaction Ciência Rural
Vidal,Ana Maria Centola; Rossi Junior,Oswaldo Durival; Abreu,Irlan Leite de; Bürger,Karina Paes; Cardoso,Marita Vedovelli; Gonçalves,Ana Carolina Siqueira; Rossi,Gabriel Augusto Marques; D'Abreu,Léa Furlan.
ABSTRACT: The present study focused on isolation Bacillus cereus during the UHT milk production and shelf life, to assess the enterotoxigenic production capacity of isolates and to evaluate the use of the RAPD-PCR technique to verify whether Bacillus cereus isolated at different phases of UHT milk processing belongs to the same strain. For this, six groups of milk samples composed of raw, pasteurized and UHT milk were collected from a processing plant. The results revealed that bacteria belonging to the Bacillus cereus group were isolated from 51.6%, 81.6% and from 13.8% of raw, pasteurized and UHT milk samples, respectively. About 50.0% of isolates from raw milk, 19.2% isolates from pasteurized milk and 70.7% isolates from UHT milk were capable of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus cereus; Enterotoxins; Microbiological quality; Pasteurized milk; Raw milk; UHT milk.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000200286
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Detection of enterotoxins genes in coagulase-negative staphylococci isolated from foods BJM
Cunha,Maria de Lourdes Ribeiro de Souza da; Peresi,Eliana; Calsolari,Regina Adriana Oliveira; Araújo Júnior,João Pessoa.
Staphylococcal food poisoning is caused by ingestion of enterotoxins preformed in the food contaminated essentially through human manipulation or raw material obtained from animals. Although coagulase-positive Staphylococcus aureus is the main agent responsible for food intoxication, some researches emphasise that coagulase-negative staphylococci (CNS) are able to produce staphylococcal enterotoxins and may be a potential cause of food poisoning. In the present study CNS were isolated from foods and the toxigenic capacity of the strains determined. A total of 88 food samples were analysed and 22.7% were positive for CNS strains. Staphylococcal counts ranged from 3.0 x 10² to 1.4 x 10(6) CFU/g or mL of food examined. S. epidermidis predominated among the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coagulase-negative staphylococci; PCR; Enterotoxins.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000100013
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Diversity of Staphylococcus coagulase: positive and negative strains of coalho cheese and detection of enterotoxin encoding genes. Repositório Alice
ANDRADE, A. P. C. DE; BORGES, M. DE F.; EVÂNIA ALTINA TEIXEIRA DE FIGUEIREDO; ARCURI, E. F..
bitstream/item/206483/1/ART19040.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: ENVENENAMENTO ALIMENTAR; LACTICÍNIOS; ENTEROTOXINAS ESTAFILOCÓCICAS; Intoxicação Alimentar; Dairy products; Enterotoxins; Staphylococcal intoxication.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116347
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Doenças em bovinos confinados. Infoteca-e
BRANDINI, J. C..
Botulismo; Enterotoxemia. Dermatomicose. Dermatofilose. Timpanismo. Acidose láctica. Laminite. Intoxicação por uréia.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Bovino de corte; Doença; Confinamento; Sanidade; Botulismo; Enterotoxemia; Dermatomicose; Dermatofilose; Timpanismo; Acidose láctea; Indigestão; Casco; Laminite; Uréia; Intoxicação; Beef cattle; Diseases; Feedlots; Health; Botulism; Enterotoxins; Dermatomycoses; Bacterioses; Dermatophilus; Bloat; Digestive; Disorders; Hooves; Foot diseases; Urea; Poisoning.
Ano: 1996 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/316986
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Enterotoxins, colonization factors, serotypes and antimicrobial resistance of enterotoxigenic Escherichia coli (ETEC) strains isolated from hospitalized children with diarrhea in Bolivia BJID
Rodas,Claudia; Mamani,Rosalía; Blanco,Jorge; Blanco,Jesus Eulogio; Wiklund,Gudrun; Svennerholm,Ann-Mari; Sjöling,Åsa; Iniguez,Volga.
Enterotoxigenic Escherichia coli (ETEC) is recognized as the main cause of bacterial diarrhoea among children in Asia, Africa and Latin America but less investigated in Bolivia. OBJECTIVE: To determine the relation between enterotoxins, CFs and serotypes as well as the antimicrobial resistance patterns in a set of ETEC isolates collected from hospitalized children with acute diarrhea. In the present study we characterized 43 ETEC strains isolated from 2002 to 2006 from hospitalized children (0-5 years) with acute diarrhea in Bolivia. The strains were analyzed for heat-labile (LT) and heat-stable (ST) enterotoxins and colonization factor (CF) profiles, as well as for serogroups and antimicrobial resistance using phenotypic (ELISA, dot blot, slide...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterotoxigenic Escherichia coli; Enterotoxins; Drug resistance; Bolivia.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000200007
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Epidemiologia molecular aplicada ao monitoramento de estirpes de Staphylococcus aureus na produção de queijo minas frescal. Repositório Alice
MEDEIROS, M. I. M. de; NADER FILHO, A.; SOUZA, V. de; MELO, P. de C.; FERREIRA, L. M.; MEDINA CANALEJO, L. M..
Resumo: Foi realizado o monitoramento epidemiológico molecular de estirpes de Staphylococcus aureus potencialmente toxigênicas isoladas no processo de produção do queijo Minas frescal em micro-usina do Estado de São Paulo. Para tanto, foram realizadas seis amostragens durante o período de junho de 2008 a julho de 2009, de modo a perfazer um total de 140 amostras. Essas amostras foram colhidas da superfície dos tanques de recepção e estocagem do leite cru, da superfície do tanque de equilíbrio do leite pasteurizado, da rede de abastecimento de água, das tubulações e equipamentos, das mãos do manipulador e de queijos embalados prontos para consumo. As colônias isoladas em Agar Baird-Parker confirmadas como cocos Gram positivos e que mostravam-se positivas às...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Queijo Minas frescal; PCR; Enterotoxina estafilocócica; Gene enterotoxigênico; Staphylococcal toxins; Segurança alimentar; Staphylococcus aureus; Estirpe; Cheese; Food safety; Enterotoxins.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/958618
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Low cost production and purification of polyclonal antibodies to staphylococcal enterotoxin A Rev. Microbiol.
Oliveira,Tereza Cristina R.M. de; Hirooka,Elisa Yoko.
An immunization scheme for production of antiserum to staphylococcal enterotoxin A (SEA) is proposed. The reference method of Robbins and Bergdoll was modified to reduce the number of doses and the amount of toxin used per animal. The best immunization scheme used injections in days 0, 8, 24, 59, 62 and 67. The amount of toxin at each injection was 5, 6, 20, 50, 100 and 200<FONT FACE="Symbol">m</font>g, respectively. The total amount of toxin was 381<FONT FACE="Symbol">m</font>g, which corresponded to a reduction of 107<FONT FACE="Symbol">m</font>g in the amount of toxin for each animal when compared to the reference method. The average antiserum titer using the Optimum Sensitivity Plate - OSP was 1:60 and using ELISA...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus aureus; Enterotoxins; Detection; Immunization.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000200006
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Ocurrence of Staphylococcus aureus and multiplex pcr detection of classic enterotoxin genes in cheese and meat products BJM
Pelisser,Marcia Regina; Klein,Cátia Silene; Ascoli,Kelen Regina; Zotti,Thaís Regina; Arisi,Ana Carolina Maisonnave.
Multiplex PCR was used to investigate the presence of enterotoxins genes (sea, seb, sec, sed and see) and femA gene (specific for Staphylococcus aureus) in coagulase-positive staphylococci (CPS) isolated from cheese and meat products. From 102 CPS isolates, 91 were positive for femA, 10 for sea, 12 for sed and four for see.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Staphylococcus aureus; Enterotoxins; Multiplex PCR.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100025
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TOXIC SHOCK SYNDROME J. Venom. Anim. Toxins
BERGDOLL,M. S..
Toxic shock syndrome is a staphylococcal disease caused by toxins produced by the staphylococci, toxic shock syndrome toxin-1 and enterotoxin B. The disease results from staphylococci growing in the vagina with the use of tampons during menstruation, primarily in young women. However, any staphylococcal infection can result in toxic shock syndrome if the staphylococci produce the appropriate toxins and the individual has no antibodies to the toxins. The symptoms can be quite severe, with high fever, low blood pressure, diffuse macular erythroderma, orthostatic dizziness, vomiting and or diarrhea at the onset, severe myalgia, peeling of the skin of the palms of the hands and the soles of the feet after seven to ten days, and death in some cases. The disease...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Toxic shock syndrome; Toxic shock syndrome toxin; Staphylococci; Enterotoxins; Antibodies.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301997000100002
Registros recuperados: 9
Primeira ... 1 ... Última
 

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