Quantification of adulterations in extra virgin flaxseed oil using MIR and PLS.

Autor: de Souza LM; Institute of Chemistry, Federal University of Uberlândia, Santa Mônica Campus, 38408-100 Uberlândia, Minas Gerais, Brazil. Electronic address: leticiam_souza@yahoo.com.br., de Santana FB; Institute of Chemistry, Federal University of Uberlândia, Santa Mônica Campus, 38408-100 Uberlândia, Minas Gerais, Brazil. Electronic address: felipebachion@hotmail.com., Gontijo LC; Institute of Chemistry, Federal University of Uberlândia, Santa Mônica Campus, 38408-100 Uberlândia, Minas Gerais, Brazil; Goiano Federal Institute of Education, Science and Technology, Geraldo Silva Nascimento Road, km 2.5, 75790-000 Urutaí, GO, Brazil. Electronic address: quilucas10@gmail.com., Mazivila SJ; Institute of Chemistry, Federal University of Uberlândia, Santa Mônica Campus, 38408-100 Uberlândia, Minas Gerais, Brazil; Josina Machel Secondary School of Belane, Vilankulo, Inhambane, Mozambique. Electronic address: mazivilasj@mestrado.ufu.br., Borges Neto W; Institute of Chemistry, Federal University of Uberlândia, Santa Mônica Campus, 38408-100 Uberlândia, Minas Gerais, Brazil. Electronic address: wbn@iqufu.ufu.br.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2015 Sep 01; Vol. 182, pp. 35-40. Date of Electronic Publication: 2015 Feb 27.
DOI: 10.1016/j.foodchem.2015.02.081
Abstrakt: This paper proposes a new method for the quantitative analysis of soybean oil (SO) and sunflower oil (SFO) as adulterants in extra virgin flaxseed oil (EFO) by applying Mid Infrared Spectroscopy (MIR) associated with chemometric technique of Partial Least Squares (PLS). The PLS models were built in accordance with standard method ASTM E1655-05 and these showed good correlation between the reference values and those calculated using the PLS models with low error values, with R = 0.998 for SFO and R = 0.999 for SO in EFO. These models were validated analytically in accordance with Brazilian and international guidelines through the estimate of figures of merit parameters, thus showing an effective and feasible method to control the quality of extra virgin flaxseed oil.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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