title: PAHs in corn grains submitted to drying with firewood.
abstract: 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°C, 60/80°C and 80°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.
authors.affiliation: Universidade Federal do Rio Grande do Sul - UFRGS - Faculdade de Agronomia, Avenida Bento Gonçalves, 7712, CEP 91540-000 Porto Alegre, RS, Brazil. Electronic address: rafaellimars@hotmail.com.
authors.forename: Rafael Friedrich
authors.initials: RF
authors.lastname: de Lima
authors.affiliation: Universidade Federal do Rio Grande do Sul - UFRGS - Faculdade de Agronomia, Avenida Bento Gonçalves, 7712, CEP 91540-000 Porto Alegre, RS, Brazil. Electronic address: rafdionello@hotmail.com.
authors.forename: Rafael Gomes
authors.initials: RG
authors.lastname: Dionello
authors.affiliation: Universidade Federal do Rio Grande do Sul - UFRGS - Instituto de Química, Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil. Electronic address: mcarmo@iq.ufrgs.br.
authors.forename: Maria do Carmo Ruaro
authors.initials: Mdo C
authors.lastname: Peralba
authors.affiliation: Universidade Federal do Rio Grande do Sul - UFRGS - Instituto de Química, Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil. Electronic address: simonequimica@yahoo.com.br.
authors.forename: Simone
authors.initials: S
authors.lastname: Barrionuevo
authors.affiliation: Universidade Federal da Fronteira Sul, câmpus Erechim Rodovia ERS, Km 135, 200, CEP 99700-000, RS, Brazil. Electronic address: laurilr@gmail.com.
authors.forename: Lauri Lourenço
authors.initials: LL
authors.lastname: Radunz
authors.affiliation: Universidade Federal da Fronteira Sul, câmpus Erechim Rodovia ERS, Km 135, 200, CEP 99700-000, RS, Brazil. Electronic address: chicowrj@gmail.com.
authors.forename: Francisco Wilson
authors.initials: FW
authors.lastname: Reichert Júnior
mesh_terms: D018533:Biomass; D001938:Brazil; D002273:Carcinogens / Q000032:analysis; D004787:Environmental Pollution / Q000331:legislation & jurisprudence; D005390:Fires; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D014934:Wood / Q000737:chemistry*; D003313:Zea mays / Q000737:chemistry*
chemical_list: D002273:Carcinogens; D011084:Polycyclic Aromatic Hydrocarbons
keywords: Cereal; Dryer; Eucalyptus wood