Ochratoxin A in raisins samples marketed in São Paulo, Brazil
Rev. Inst. Adolfo Lutz
; 65(3): 171-175, set.-dez. 2006. tab, graf
Artigo
em Inglês
| LILACS, SES-SP, SESSP-CTDPROD, SES-SP, SESSP-IALPROD, SES-SP
| ID: lil-461272
Biblioteca responsável:
BR91.2
ABSTRACT
The present study aimed to evaluate a methodology for analyzing ochratoxin A (OTA) in raisins samples marketed in São Paulo, Brazil. OTA was extracted with methanol water (8020, v/v) and diluted with phosphate buffer solution, and purified through an immunoaffinity column. OTA was separated and quantified using HPLC with fluorescence detection. The established detection and quantification limits were 0.24 and 0.80 ng/g, respectively. The recoveries values were 81.6, 80.4 and 81.9%, and the relative standard deviations (RSD) were 6.0, 4.3, and 6.1 % at 2.0, 5.0 and 10.0 ng/g levels, respectively. Of twenty black raisin samples analyzed 10 (50 %) contained OTA at levels ranging from 1.3 to 39.1 ng/g. All of twenty-two white raisin samples showed no contamination with OTA.
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Base de dados:
LILACS
/
SES-SP
/
SESSP-CTDPROD
/
SESSP-IALPROD
Assunto:
Brasil
/
Vitis
/
Ocratoxinas
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Rev. Inst. Adolfo Lutz
Ano de publicação:
2006
Tipo de documento:
Artigo
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