Author/Authors :
Meira، نويسنده , , Marilena and Quintella، نويسنده , , Cristina M. and Tanajura، نويسنده , , Alessandra dos Santos and da Silva، نويسنده , , Humbervânia Reis Gonçalves and Fernando، نويسنده , , Jaques D’Erasmo Santos and da Costa Neto، نويسنده , , Pedro R. and Pepe، نويسنده , , Iuri M. and Santos، نويسنده , , Mariana Andrade and Nascimento، نويسنده , , Luciana Lordelo، نويسنده ,
Abstract :
Oxidation stability is an important quality parameter for biodiesel. In general, the methods used to evaluate the oxidation stability of oils and biodiesels are time-consuming. This work reports the use of spectrofluorimetry, a fast analytical technique, associated with multivariate data analysis as a powerful analytical tool to prediction of the oxidation stability. The prediction of the oxidation stability showed a good agreement with the results obtained by the EN14112 reference method Rancimat. The models presented high correlation (0.99276 and 0.97951) between real and predicted values. The R2 values of 0.98557 and 0.95943 indicated the accuracy of the models to predict the oxidation stability of soy oil and soy biodiesel, respectively. The residual distribution does not follow a trend with respect to the predicted variables indicating the good quality of the fits.
Keywords :
biodiesel , Spectrofluorimetry , Multivariate calibration , Vegetable oil , Oxidation
