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Prediction of Concentration of Animal Fat in Mixture with Vegetable Oil by Multivariate Calibration Associated with Spectrofluorimetry

¹ Instituto de Educa??o, Ciência e Tecnologia da Bahia, Campus de Sim?es Filho, Sim?es Filho, Brasil
² Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil
³ Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil
⁴ Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil
⁵ Instituto de Educa??o, Ciência e Tecnologia da Bahia, Campus de Sim?es Filho, Sim?es Filho, Brasil
⁶ Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil
⁷ Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil
⁸ Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil
⁹ Instituto de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Brasil

American Journal of Analytical Chemistry·Volume 04 (2013)·Pages 99–103·Published 17 February 2013·DOI10.4236/ajac.2013.42013

Abstract

Total spectrofluorimetry associated with Principal Component Analysis (PCA) was used to discriminate samples of vegetable oil and animal fat. In addition, a multivariate calibration model was developed that combines spectrofluri metry with Partial Least Squares (PLS) for prediction of concentration of animal fat in mixture with vegetable oil. The multivariate calibration model had an R 2 value of 0.98098, which indicates the accuracy of the model. This method has potential application in the control of quality of raw material for production of biodiesel. The control of the concentra tion of animal fat is important because animal fat is more susceptible to oxidation than vegetable oil. Furthermore, high concentrations of animal fats may increase electricity costs for biodiesel production due to the high melting points of saturated fats that solidify at room temperature and cause the fouling and clogging of pipes.

KeywordsBiodieselVegetable OilAnimal FatSpectrofluorimetryPLS

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Prediction of Concentration of Animal Fat in Mixture with Vegetable Oil by Multivariate Calibration Associated with Spectrofluorimetry

Abstract

References (8)