Ochratoxin A in raisins samples marketed in São Paulo, Brazil
Rev. Inst. Adolfo Lutz
; 65(3): 171-175, set.-dez. 2006. tab, graf
Article
em En
| 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.
Buscar no Google
Coleções:
01-internacional
Base de dados:
LILACS
/
SES-SP
/
SESSP-CTDPROD
/
SESSP-IALPROD
Assunto principal:
Brasil
/
Vitis
/
Ocratoxinas
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Rev. Inst. Adolfo Lutz
/
Rev. Inst. Adolfo Lutz (Online)
/
Revista do Instituto Adolfo Lutz (Impresso)
Assunto da revista:
MICROBIOLOGIA
/
SAUDE PUBLICA
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil