1996
DOI: 10.1590/s0034-89101996000600008
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Avaliação do desempenho do método do ensaio por enzimas imuno-adsorvidas (ELISA) em leite em pó reconstituído contaminado experimentalmente com aflatoxina M1

Abstract: ResumoO desempenho do ensaio por enzimas imuno-adsorvidas (ELISA), mediante o emprego de conjuntos de reativos produzidos em escala comercial, para determinação de aflatoxina, foi avaliado em condições experimentais, através de análises repetidas, em amostras de leite em pó reconstituído contaminadas com concentrações conhecidas da fração M 1 da toxina. Para os níveis de 0,10; 0,20; 0,50; e, 1,00 ng/ml, os percentuais de recuperação foram: 83,0%; 87,5%; 103,0%; e, 111,8%, respectivamente. O desvio-padrão relat… Show more

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“…TLC methods for the determination of trichotecenes and ZEA in grains (58) and of AFB1, AFM1, ZEA and OTA in animal tissues (126), an HPLC method for the simultaneous determination of tenuazonic acid (TEA) and cyclopiazonic acid (CPA) (71), a method for determining FB1 in corn, using immunoaffinity column clean-up and TLC/densitometry (101), and an HPLC method involving fluorimetric quantification of OPA-derivatives of FB 1 and FB 2 in corn and Fusarium moniliforme culture extracts (23) were developed. A GC method for quantification and confirmation of trichothecenes in wheat (40), TLC systems for the confirmation of trichothecenes (59) and a commercial ELISA kit for AFM 1 in milk (74) were assessed. Comparisons were carried out with ELISA and TLC methods for AFB 1 in samples of corn, feed and peanut (106) and for AFs, OTA and ZEA in corn and corn meal (63); two TLC methods for OTA in green coffee (66); and TLC and HPLC methods for AFM 1 in milk (116) and for FB S in corn (80).…”
Section: Analytical and Mycological Methodsmentioning
confidence: 99%
“…TLC methods for the determination of trichotecenes and ZEA in grains (58) and of AFB1, AFM1, ZEA and OTA in animal tissues (126), an HPLC method for the simultaneous determination of tenuazonic acid (TEA) and cyclopiazonic acid (CPA) (71), a method for determining FB1 in corn, using immunoaffinity column clean-up and TLC/densitometry (101), and an HPLC method involving fluorimetric quantification of OPA-derivatives of FB 1 and FB 2 in corn and Fusarium moniliforme culture extracts (23) were developed. A GC method for quantification and confirmation of trichothecenes in wheat (40), TLC systems for the confirmation of trichothecenes (59) and a commercial ELISA kit for AFM 1 in milk (74) were assessed. Comparisons were carried out with ELISA and TLC methods for AFB 1 in samples of corn, feed and peanut (106) and for AFs, OTA and ZEA in corn and corn meal (63); two TLC methods for OTA in green coffee (66); and TLC and HPLC methods for AFM 1 in milk (116) and for FB S in corn (80).…”
Section: Analytical and Mycological Methodsmentioning
confidence: 99%