https://doi.org/10.1140/epjst/e2008-00502-9
Analysis of biodiesel and frying vegetable oils by means of FTIR photoacoustic spectroscopy
1
Grupo de Espectroscopia Óptica e Fototérmica, Universidade Estadual de Mato Grosso do Sul, CP 351, CEP, 79804-970 Dourados, MS, Brazil
2
Departamento de Engenharia e Tecnologia de Alimentos, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, Rua Cristóvão Colombo 2265, CEP, 15054-000 S.J. do Rio Preto, SP, Brazil
3
Departamento de Física, Universidade Federal de Mato Grosso do Sul, C.P. 549, 79070-900 Campo Grande, MS, Brazil
Corresponding author: smlima@pesquisador.cnpq.br
Fourier Transform Infrared Photoacoustic Spectroscopy was used to determine the mid-infrared vibrational modes of biodiesel and vegetable oils. Our results indicate that this method can contribute significantly to the biodiesel wash process during the sample preparation. Besides, by analyzing the spectra of vegetable oils used to fry snacks we could to monitor the degradation in function of the fried time.
© EDP Sciences, Springer-Verlag, 2008
