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Profiles of polycyclic aromatic hydrocarbons in Brazilian sugar cane spirits: discrimination between Cachaças produced from nonburned and burned sugar cane crops.
Galinaro, Carlos A; Cardoso, Daniel R; Franco, Douglas W.
Afiliação
  • Galinaro CA; Departamento de Química e Física Molecular, IQSC, Universidade de São Paulo, Avenida do Trabalhador São Carlense 400, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
J Agric Food Chem ; 55(8): 3141-7, 2007 Apr 18.
Article em En | MEDLINE | ID: mdl-17381124
Cachaça may be contaminated by a remarkable presence of polycyclic aromatic hydrocarbons (PAHs) when the sugar cane crop used for its production is burned before harvesting. The analysis of 15 PAHs by liquid chromatography coupled to a fluorescence detector in 131 cachaça samples from burned and nonburned sugar cane crops is reported. Average contents of 21.1 and 1.91 microg L(-1) for total PAHs were observed for cachaças originating from burned and nonburned sugar cane plantations, respectively. The main difference between these two classes of cachaças is in the quantitative profile of the most potent carcinogenic PAH, benzo[a]pyrene, which is more abundant in cachaça produced from burned sugar cane crops (4.54 x 10(-2) microg L(-1)) than in cachaça produced from nonburned crops (9.02 x 10(-3) microg L(-1)). The contents of benzo[a]pyrene in both classes of cachaça are lower than the legal limit established by the European Union (EU) at 2.00 microg L(-1) for food products. In relation to the total PAH content suggested by the German Society for Fat Science, both cachaças from burned (21.1 microg L(-1)) and nonburned crops (1.91 microg L(-1)) are below the limit (25 microg L(-1)) for total PAH content. The analytical data for PAHs, when treated through the multivariate statistical methods principal component analysis and canonical discriminant analysis, provide a very good distinction between samples produced from burned and nonburned sugar cane crops with a certainty of 98.1%.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Hidrocarbonetos Policíclicos Aromáticos / Saccharum / Bebidas Alcoólicas / Temperatura Alta Tipo de estudo: Prognostic_studies País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Agric Food Chem Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Hidrocarbonetos Policíclicos Aromáticos / Saccharum / Bebidas Alcoólicas / Temperatura Alta Tipo de estudo: Prognostic_studies País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Agric Food Chem Ano de publicação: 2007 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos