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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
31/08/2017 |
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Data da última atualização: |
31/08/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REGO, E. C. P. DO; GUIMARÃES, E. DE F.; RODRIGUES, J. M.; SCARLATO, R. C.; NOGUEIRA, R. I.; PEREIRA NETTO, A. D. |
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Afiliação: |
Eliane Cristina Pires do Rego, INMETRO; Evelyn de Freitas Guimarães, INMETRO; Janaína Marques Rodrigues, INMETRO; Renata Cristina Scarlato, INMETRO; REGINA ISABEL NOGUEIRA, CTAA; Annibal Duarte Pereira Netto, UFF. |
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Título: |
Feasibility study for development of candidate reference material for food analysis: Chloramphenicol in milk powder. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Measurement, n. 98, p. 300-304, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Reliable analytical results are necessary to ensure effective consumer protection and the use of certified reference material (CRM) is an important tool for quality assurance. The Brazilian Metrology Institute (Inmetro) studied the feasibility of the production of a candidate CRM of chloramphenicol (CAP) in milk. CAP is an antibiotic banned for treatment of food-producing animals. A minimum required performance limit (MRPL) for analytical methods of 0.3 lg kg1 was set by the European Community for the detection of CAP residues in food matrices. Liquid chromatography with isotope dilution mass spectrometry (LC? IDMS) was employed for CAP determination and water content was measured by Karl Fischer coulometric titration. The feasibility study showed milk powder processed with both spray dryer and lyophilization lead to the best results, showing good degree of inhomogeneity for CAP residues (5.0%) and for water content (3.0%), therefore demonstrating that the production of this candidate CRM was feasible |
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Palavras-Chave: |
Feasibility study; Homogeneity Certified Reference Material (CRM). |
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Thesaurus Nal: |
chloramphenicol; milk. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01741naa a2200229 a 4500
001 2074788
005 2017-08-31
008 2017 bl uuuu u00u1 u #d
100 1 $aREGO, E. C. P. DO
245 $aFeasibility study for development of candidate reference material for food analysis$bChloramphenicol in milk powder.$h[electronic resource]
260 $c2017
520 $aReliable analytical results are necessary to ensure effective consumer protection and the use of certified reference material (CRM) is an important tool for quality assurance. The Brazilian Metrology Institute (Inmetro) studied the feasibility of the production of a candidate CRM of chloramphenicol (CAP) in milk. CAP is an antibiotic banned for treatment of food-producing animals. A minimum required performance limit (MRPL) for analytical methods of 0.3 lg kg1 was set by the European Community for the detection of CAP residues in food matrices. Liquid chromatography with isotope dilution mass spectrometry (LC? IDMS) was employed for CAP determination and water content was measured by Karl Fischer coulometric titration. The feasibility study showed milk powder processed with both spray dryer and lyophilization lead to the best results, showing good degree of inhomogeneity for CAP residues (5.0%) and for water content (3.0%), therefore demonstrating that the production of this candidate CRM was feasible
650 $achloramphenicol
650 $amilk
653 $aFeasibility study
653 $aHomogeneity Certified Reference Material (CRM)
700 1 $aGUIMARÃES, E. DE F.
700 1 $aRODRIGUES, J. M.
700 1 $aSCARLATO, R. C.
700 1 $aNOGUEIRA, R. I.
700 1 $aPEREIRA NETTO, A. D.
773 $tMeasurement$gn. 98, p. 300-304, 2017.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
08/04/2019 |
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Data da última atualização: |
06/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA, L. L. da; BRAGANÇA, C. A. D.; FERREIRA, C. F.; DIAMANTINO, M. S. A. S.; OLIVEIRA, S. A. S. de. |
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Afiliação: |
LEANDRO LOPES DA SILVA, UFRB; CARLOS AUGUSTO DÓREA BRAGANÇA, UFRB; CLAUDIA FORTES FERREIRA, CNPMF; MARIA SELMA ALVES SILVA DIAMANTINO; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF. |
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Título: |
Differentiation of lineages within "Colletotrichum gloeosporioides s.l." associated with cassava anthracnose disease by BOX" and ERIC"PCRs. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Phytopathology, v.167, p.218-229, 2019. |
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ISSN: |
1439-0434 |
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Idioma: |
Inglês |
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Conteúdo: |
Several molecular techniques have been used to differentiate species or genetic lineages of microorganisms prior to sequencing. Among them, BOX? and ERIC?PCRs may provide specific banding patterns for different species, allowing its differentiation. Therefore, the objective of this study was to evaluate these techniques as a tool for differentiation of phylogenetic lineages belonging to the Colletotrichum gloeosporioides species complex associated with cassava anthracnose disease. Sets of BOX? and ERIC?PCR primers were used to assess the differentiation of lineages belonging to the complex with 81 C. gloeosporioides sensu lato (s.l.) isolates from different cassava producing regions. Some were identified by sequencing, such as Colletotrichum fructicola, Colletotrichum tropicale, C. gloeosporioides s.s, Colletotrichum theobromicola, Colletotrichum siamense, Colletotrichum brevisporum and Colletotrichum sichuanensis. The primers were able to amplify DNA fragments from all isolates. The ERIC?PCR presented a wider range of banding patterns in comparison to BOX?PCR, providing better differentiation of the individuals, as well as a higher correlation with the phylogenetic data was obtained by ERIC?PCR and the combined data set for ?BOX?/ ERIC?PCRs,? inferred by Mantel test. However, the use of concatenated data (BOX?/ ERIC?PCRs) reduced the discriminatory capacity presented by ERIC?PCR alone, probably due to the lowest resolution of BOX?PCR. Therefore, ERIC?PCR technique enabled efficient differentiation of isolates belonging to the C. gloeosporioides complex and can be used to analyse multiple isolates in a collection and also being an important tool as a guide in the decision?making process prior to sequencing. Based on this methodology, it was possible to identify two new species associated with cassava anthracnose disease, C. brevisporum and C. sichuanensis, being the first report of these two species associated with cassava anthracnose disease in Brazil. MenosSeveral molecular techniques have been used to differentiate species or genetic lineages of microorganisms prior to sequencing. Among them, BOX? and ERIC?PCRs may provide specific banding patterns for different species, allowing its differentiation. Therefore, the objective of this study was to evaluate these techniques as a tool for differentiation of phylogenetic lineages belonging to the Colletotrichum gloeosporioides species complex associated with cassava anthracnose disease. Sets of BOX? and ERIC?PCR primers were used to assess the differentiation of lineages belonging to the complex with 81 C. gloeosporioides sensu lato (s.l.) isolates from different cassava producing regions. Some were identified by sequencing, such as Colletotrichum fructicola, Colletotrichum tropicale, C. gloeosporioides s.s, Colletotrichum theobromicola, Colletotrichum siamense, Colletotrichum brevisporum and Colletotrichum sichuanensis. The primers were able to amplify DNA fragments from all isolates. The ERIC?PCR presented a wider range of banding patterns in comparison to BOX?PCR, providing better differentiation of the individuals, as well as a higher correlation with the phylogenetic data was obtained by ERIC?PCR and the combined data set for ?BOX?/ ERIC?PCRs,? inferred by Mantel test. However, the use of concatenated data (BOX?/ ERIC?PCRs) reduced the discriminatory capacity presented by ERIC?PCR alone, probably due to the lowest resolution of BOX?PCR. Therefore, ERIC?PCR technique enabled e... Mostrar Tudo |
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Thesagro: |
Doença de Planta. |
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Thesaurus NAL: |
Plant diseases and disorders. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02676naa a2200205 a 4500
001 2108006
005 2019-12-06
008 2019 bl uuuu u00u1 u #d
022 $a1439-0434
100 1 $aSILVA, L. L. da
245 $aDifferentiation of lineages within "Colletotrichum gloeosporioides s.l." associated with cassava anthracnose disease by BOX" and ERIC"PCRs.$h[electronic resource]
260 $c2019
520 $aSeveral molecular techniques have been used to differentiate species or genetic lineages of microorganisms prior to sequencing. Among them, BOX? and ERIC?PCRs may provide specific banding patterns for different species, allowing its differentiation. Therefore, the objective of this study was to evaluate these techniques as a tool for differentiation of phylogenetic lineages belonging to the Colletotrichum gloeosporioides species complex associated with cassava anthracnose disease. Sets of BOX? and ERIC?PCR primers were used to assess the differentiation of lineages belonging to the complex with 81 C. gloeosporioides sensu lato (s.l.) isolates from different cassava producing regions. Some were identified by sequencing, such as Colletotrichum fructicola, Colletotrichum tropicale, C. gloeosporioides s.s, Colletotrichum theobromicola, Colletotrichum siamense, Colletotrichum brevisporum and Colletotrichum sichuanensis. The primers were able to amplify DNA fragments from all isolates. The ERIC?PCR presented a wider range of banding patterns in comparison to BOX?PCR, providing better differentiation of the individuals, as well as a higher correlation with the phylogenetic data was obtained by ERIC?PCR and the combined data set for ?BOX?/ ERIC?PCRs,? inferred by Mantel test. However, the use of concatenated data (BOX?/ ERIC?PCRs) reduced the discriminatory capacity presented by ERIC?PCR alone, probably due to the lowest resolution of BOX?PCR. Therefore, ERIC?PCR technique enabled efficient differentiation of isolates belonging to the C. gloeosporioides complex and can be used to analyse multiple isolates in a collection and also being an important tool as a guide in the decision?making process prior to sequencing. Based on this methodology, it was possible to identify two new species associated with cassava anthracnose disease, C. brevisporum and C. sichuanensis, being the first report of these two species associated with cassava anthracnose disease in Brazil.
650 $aPlant diseases and disorders
650 $aDoença de Planta
700 1 $aBRAGANÇA, C. A. D.
700 1 $aFERREIRA, C. F.
700 1 $aDIAMANTINO, M. S. A. S.
700 1 $aOLIVEIRA, S. A. S. de
773 $tJournal of Phytopathology$gv.167, p.218-229, 2019.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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