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Evaluation of skimmed milk flocculation method for virus recovery from tomatoes
Melgaço, Fabiana Gil; Corrêa, Adriana Abreu; Ganime, Ana Carolina; Brandão, Marcelo Luiz Lima; Medeiros, Valéria de Mello; Rosas, Carla de Oliveira; Lopes, Silvia Maria dos Reis; Miagostovich, Marize Pereira.
  • Melgaço, Fabiana Gil; Instituto Oswaldo Cruz - Fiocruz. Laboratório de Virologia Comparativa e Ambiental. Rio de Janeiro. BR
  • Corrêa, Adriana Abreu; Universidade Federal Fluminense. Laboratório de Virologia. Niterói. BR
  • Ganime, Ana Carolina; Instituto Oswaldo Cruz - Fiocruz. Laboratório de Virologia Comparativa e Ambiental. Rio de Janeiro. BR
  • Brandão, Marcelo Luiz Lima; Instituto Oswaldo Cruz - Fiocruz. Instituto Nacional de Controle de Qualidade em Saúde. Departamento de Imunologia, Laboratório de Vacinas Virais, Biofarmacêuticos e Cultura Celular. Rio de Janeiro. BR
  • Medeiros, Valéria de Mello; Instituto Oswaldo Cruz - Fiocruz. Instituto Nacional de Controle de Qualidade em Saúde. Departamento de Microbiologia. Rio de Janeiro. BR
  • Rosas, Carla de Oliveira; Instituto Oswaldo Cruz - Fiocruz. Instituto Nacional de Controle de Qualidade em Saúde. Departamento de Microbiologia. Rio de Janeiro. BR
  • Lopes, Silvia Maria dos Reis; Instituto Oswaldo Cruz - Fiocruz. Instituto Nacional de Controle de Qualidade em Saúde. Departamento de Microbiologia. Rio de Janeiro. BR
  • Miagostovich, Marize Pereira; Instituto Oswaldo Cruz - Fiocruz. Laboratório de Virologia Comparativa e Ambiental. Rio de Janeiro. BR
Braz. j. microbiol ; 49(supl.1): 34-39, 2018. tab, graf
Article in English | LILACS | ID: biblio-974321
ABSTRACT
Abstract This study aimed to evaluate the elution-concentration methodology based on skimmed milk flocculation from three varieties of tomatoes (Solanum lycopersicum L. [globe], Solanum lycopersicum var. cerasiforme [cherry] and hybrid cocktail [grape tomato]) for further monitoring of field samples. Spiking experiments were performed to determine the success rate and efficiency recovery of human norovirus (NoV) genogroup II, norovirus murine-1 (MNV-1) used as sample process control virus and human adenovirus (HAdV). Mean values of 18.8%, 2.8% and 44.0% were observed for NoV GII, MNV-1 and HAdV, respectively with differences according to the types of tomatoes, with lower efficiency for cherry tomatoes. Analysis of 90 samples, obtained at commercial establishments in the metropolitan region of Rio de Janeiro State, revealed 4.5% positivity for HAdV. Bacterial analysis was also performed with no detection of Salmonella spp., L. monocytogenes and fecal coliforms. Data demonstrated that the skimmed milk flocculation method is suitable for recovering HAdV from tomatoes and highlights the need for considering investigation in order to improve food safety.
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Full text: Available Index: LILACS (Americas) Main subject: Viruses / Solanum lycopersicum / Milk / Food Microbiology / Fruit Limits: Animals Language: English Journal: Braz. j. microbiol Journal subject: Microbiology Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Instituto Oswaldo Cruz - Fiocruz/BR / Universidade Federal Fluminense/BR

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Full text: Available Index: LILACS (Americas) Main subject: Viruses / Solanum lycopersicum / Milk / Food Microbiology / Fruit Limits: Animals Language: English Journal: Braz. j. microbiol Journal subject: Microbiology Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Instituto Oswaldo Cruz - Fiocruz/BR / Universidade Federal Fluminense/BR