Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia

Detalhes bibliográficos
Autor(a) principal: Barreto, Norma Suely Evangelista
Data de Publicação: 2012
Outros Autores: Santos, Gleyde Córdova da França, Crepaldi, Aura Lacerda, Santos, Rebeca Ayala Rosa dos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10040
Resumo: The microbiological quality as well as the antimicrobial susceptibility of bacteria isolated from raw milk obtained from 25 food stores in Cruz das Almas, Bahia were evaluated. The analysis included counts of mesophilic and psicrotrophic microorganisms, molds and yeast, Staphylococcus spp., coagulase-positive Staphylococcus, coliforms (at 35ºC and 45ºC), and the presence of Salmonella spp. and Escherichia coli. The average count for mesophilic and psicrotrophic microorganisms, molds and yeast, and coliforms at 35°C and 45°C were 1.6 x 109 CFU.mL-1, 9.6 x 104 CFU.mL-1, 3.8 x 108 CFU. mL-1, 4.0 x 105 MPN.mL-1 and 3.8 x 105 MPN.mL-1, respectively. Coagulase positive Staphylococcus was found in 44% of the samples (mean value of 7.3 x 105 CFU.mL-1), and E. coli was present in 76% of them. Salmonella was not detected in any of the samples tested. E. coli showed resistance (57.9%) to tetracycline, to ampicillin and chloramphenicol (10.5%), and cephalotin (5.3%), while coagulase-positive Staphylococcus strains were resistant to amicacin (18%) and vancomicin (18%). The raw milk besides to present poor microbiological quality, becoming a health risk of the consumers, it may contribute to the dissemination of resistant bacteria to various antimicrobial agents.
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spelling Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, BahiaQualidade microbiológica e suscetibilidade antimicrobiana do leite in natura comercializado em Cruz das Almas, BahiaEscherichia coliFood poisoningPathogensFood security.Escherichia coliToxiinfecção alimentarPatógenosSegurança alimentar.Microbiologia de AlimentosThe microbiological quality as well as the antimicrobial susceptibility of bacteria isolated from raw milk obtained from 25 food stores in Cruz das Almas, Bahia were evaluated. The analysis included counts of mesophilic and psicrotrophic microorganisms, molds and yeast, Staphylococcus spp., coagulase-positive Staphylococcus, coliforms (at 35ºC and 45ºC), and the presence of Salmonella spp. and Escherichia coli. The average count for mesophilic and psicrotrophic microorganisms, molds and yeast, and coliforms at 35°C and 45°C were 1.6 x 109 CFU.mL-1, 9.6 x 104 CFU.mL-1, 3.8 x 108 CFU. mL-1, 4.0 x 105 MPN.mL-1 and 3.8 x 105 MPN.mL-1, respectively. Coagulase positive Staphylococcus was found in 44% of the samples (mean value of 7.3 x 105 CFU.mL-1), and E. coli was present in 76% of them. Salmonella was not detected in any of the samples tested. E. coli showed resistance (57.9%) to tetracycline, to ampicillin and chloramphenicol (10.5%), and cephalotin (5.3%), while coagulase-positive Staphylococcus strains were resistant to amicacin (18%) and vancomicin (18%). The raw milk besides to present poor microbiological quality, becoming a health risk of the consumers, it may contribute to the dissemination of resistant bacteria to various antimicrobial agents.Para a avaliação da qualidade microbiológica do leite in natura, bem como a suscetibilidade antimicrobiana das bactérias isoladas, foram analisados 25 estabelecimentos comerciais em Cruz das Almas, Ba. Para isso realizou-se a quantificação de micro-organismos heterotróficos mesófilos e psicrotróficos aeróbios, bolores e leveduras, Staphylococcus spp., Staphylococcus coagulase positiva, coliformes (35ºC e 45ºC) e presença de Salmonella spp. e Escherichia coli. A contagem média de micro-organismos heterotróficos mesófilos foi de 1,6 x 109 UFC.mL-1, psicrotróficos 9,6 x 104 UFC. mL-1, bolores e leveduras 3,8 x 108 UFC.mL-1, coliformes a 35°C 4 x 105 NMP.mL-1 e a 45°C 3,8 x 105 NMP.mL-1. Staphylococcus coagulase positiva foi observada em 44% das amostras, com média de 7,3 x 105 UFC.mL-1 e diferença estatística (P>0,05) entre os estabelecimentos. Escherichia coli foi isolada em 76% das amostras, e a presença de Salmonella não foi observada em nenhuma das amostras. Escherichia coli apresentou resistência à tetraciclina (57,9%), ampicilina e cloranfenicol (10,5%) e cefalotina (5,3%), enquanto as estirpes de Staphylococcus coagulase positivo foram resistentes a amicacina (18%) e vancomicina (18%). O leite in natura, além de apresentar qualidade microbiológica insatisfatória, colocando em risco a saúde dos consumidores, pode servir de veículo de disseminação de bactérias resistentes a diferentes agentes antimicrobianos.UEL2012-12-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1004010.5433/1679-0359.2012v33n6p2315Semina: Ciências Agrárias; Vol. 33 No. 6 (2012); 2315-2326Semina: Ciências Agrárias; v. 33 n. 6 (2012); 2315-23261679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10040/11691Barreto, Norma Suely EvangelistaSantos, Gleyde Córdova da FrançaCrepaldi, Aura LacerdaSantos, Rebeca Ayala Rosa dosinfo:eu-repo/semantics/openAccess2015-11-19T18:37:15Zoai:ojs.pkp.sfu.ca:article/10040Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:15Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
Qualidade microbiológica e suscetibilidade antimicrobiana do leite in natura comercializado em Cruz das Almas, Bahia
title Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
spellingShingle Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
Barreto, Norma Suely Evangelista
Escherichia coli
Food poisoning
Pathogens
Food security.
Escherichia coli
Toxiinfecção alimentar
Patógenos
Segurança alimentar.
Microbiologia de Alimentos
title_short Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
title_full Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
title_fullStr Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
title_full_unstemmed Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
title_sort Microbiological quality and antimicrobial susceptibility of informally traded milk in Cruz das Almas county, Bahia
author Barreto, Norma Suely Evangelista
author_facet Barreto, Norma Suely Evangelista
Santos, Gleyde Córdova da França
Crepaldi, Aura Lacerda
Santos, Rebeca Ayala Rosa dos
author_role author
author2 Santos, Gleyde Córdova da França
Crepaldi, Aura Lacerda
Santos, Rebeca Ayala Rosa dos
author2_role author
author
author
dc.contributor.author.fl_str_mv Barreto, Norma Suely Evangelista
Santos, Gleyde Córdova da França
Crepaldi, Aura Lacerda
Santos, Rebeca Ayala Rosa dos
dc.subject.por.fl_str_mv Escherichia coli
Food poisoning
Pathogens
Food security.
Escherichia coli
Toxiinfecção alimentar
Patógenos
Segurança alimentar.
Microbiologia de Alimentos
topic Escherichia coli
Food poisoning
Pathogens
Food security.
Escherichia coli
Toxiinfecção alimentar
Patógenos
Segurança alimentar.
Microbiologia de Alimentos
description The microbiological quality as well as the antimicrobial susceptibility of bacteria isolated from raw milk obtained from 25 food stores in Cruz das Almas, Bahia were evaluated. The analysis included counts of mesophilic and psicrotrophic microorganisms, molds and yeast, Staphylococcus spp., coagulase-positive Staphylococcus, coliforms (at 35ºC and 45ºC), and the presence of Salmonella spp. and Escherichia coli. The average count for mesophilic and psicrotrophic microorganisms, molds and yeast, and coliforms at 35°C and 45°C were 1.6 x 109 CFU.mL-1, 9.6 x 104 CFU.mL-1, 3.8 x 108 CFU. mL-1, 4.0 x 105 MPN.mL-1 and 3.8 x 105 MPN.mL-1, respectively. Coagulase positive Staphylococcus was found in 44% of the samples (mean value of 7.3 x 105 CFU.mL-1), and E. coli was present in 76% of them. Salmonella was not detected in any of the samples tested. E. coli showed resistance (57.9%) to tetracycline, to ampicillin and chloramphenicol (10.5%), and cephalotin (5.3%), while coagulase-positive Staphylococcus strains were resistant to amicacin (18%) and vancomicin (18%). The raw milk besides to present poor microbiological quality, becoming a health risk of the consumers, it may contribute to the dissemination of resistant bacteria to various antimicrobial agents.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-05
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10040
10.5433/1679-0359.2012v33n6p2315
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10040
identifier_str_mv 10.5433/1679-0359.2012v33n6p2315
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10040/11691
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 33 No. 6 (2012); 2315-2326
Semina: Ciências Agrárias; v. 33 n. 6 (2012); 2315-2326
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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