ALMEIDA, K. M.; http://lattes.cnpq.br/5657784413049821; ALMEIDA, Katcilânya Menezes de.
Resumen:
Brazil has great potential to produce vegetable oils as a source of raw materiais for food
and energy. But in the last five years has been the largest importer of olive oil in the
worid due to its health benefits and wide divulgation. In this context, the aim of this
work was the development of special blends of vegetable oils as an alternative to olive
oils based on peanut, sesame, soy and passion fruit. The peanut and sesame oils because
they are a source of fatty acids and antioxidants in the diet of little explored in Brazil,
passion fruit oil as co-product of the juice industry, and soybean oil abundant raw
material which makes the product available to consumers of ali social classes. The
peanut and sesame oils were extracted from seeds of BRS-Seda and BRS-Havana, while
passion fruit oil was purchased commercially of city São Paulo-SP and trade soybean in
the city of Campina Grande-PB. The mixtures were prepared based on an array of
experimental design and then submitted to analysis of fatty acid composition and
physico-chemical (moisture, acid value, iodine value, refractive index, density and
viscosity). Moreover, were used as reference variables for prediction via infrared
spectroscopy (NIR) using the partial least squares (PLS) and multivariate calibration
methodology. The results were subjected to analysis of variance (ANOVA),
multivariate analysis of variance (MANOVA), canonical correlation analysis and
Pearson correlation analysis by SAS 9.1.3 software, the principal component analysis
(PCA) and Partial least squares regression (PLS) was used Uncrambler 9.8 ® softwarlt
was concluded that the mixture equivalent to 40% peanut oil, 20% sesame oil, 20%
passion fruit oil, and 20% soybean oil was presented as the best mix for food
composition based on fatty acids. The prediction by NIR methods were effective for
estimating non-destructive, rapid, inexpensive and direct fatty acids palmitic, stearic,
oleie, linoleic, linolenic and arachidic and physico-chemical measurements of density,
refractive index, viscosity, acid value and iodine value.