PAHs in corn grains submitted to drying with firewood

卷:215

de Lima, Rafael Friedrich ; Dionello, Rafael Gomes ; Ruaro Peralba, Maria do Carmo ; Barrionuevo, Simone ; Radunz, Lauri Lourenco ; Reichert Junior, Francisco Wilson

Univ Fed Rio Grande do Sul

关键词: Dryer;    Cereal;    Eucalyptus wood;   

DOI  :  10.1016/j.foodchem.2016.07.164

学科分类：食品科学和技术

【 摘 要 】

Grain drying using firewood as fuel for air heating, with direct fire, is still widely used in Brazil. The combustion of organic material, such as wood, can generate polycyclic aromatic hydrocarbons (PAHs) which are known to have carcinogenic potential. In the present work corn grain drying was carried out at three drying air temperatures: 60 degrees C, 60/80 degrees C and 80 degrees C. Following the drying process, the presence and quantification of PAH in the corn grains was investigated. After extracting the PAHs of the matrix, the material was subjected to analysis by gas chromatography with mass detector. he results showed the presence of seven compounds: fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)anthracene and chrysene. (C) 2016 Elsevier Ltd. All rights reserved.