2005
DOI: 10.1590/s0100-40422005000600003
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Alterações físico-químicas dos óleos de girassol, milho e soja em frituras

Abstract: Cristóvão Colombo, 2265, 15054-000 São José do Rio Preto-SP Recebido em 27/4/04; aceito em 21/3/05; publicado na web em 11/7/05 PHYSICO-CHEMICAL ALTERATIONS OF SUNFLOWER, CORN AND SOYBEAN OILS IN DEEP FAT FRYING. The aim of this study is to determine the influence of frying time on the alterations of sunflower, corn and soybean oils during deep fat frying of potato chips. The analytical methods used to evaluate the oil alterations are: free fatty acids, peroxide value, refractive index and total polar compound… Show more

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Cited by 45 publications
(25 citation statements)
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References 8 publications
(9 reference statements)
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“…The decomposition rate of products in the frying oil is ruled by factors such as the type of food fried, type of oil used, equipment type, frying conditions (time and temperature), frequency of oil replacement, oil quality and presence of antioxidants (CHOE; MIN, 2007;KITA;LISINSKA;GOŁUBOWSKA, 2007;LUNARDI, 2004;JORGE et al, 2005;MACHADO et al, 2007). Osawa, Gonçalves and Mendes (2010) found that, even with some set parameters, the frying process is difficult to control and even frying processes conducted in a laboratory are difficult to reproduce.…”
Section: Discussionmentioning
confidence: 99%
“…The decomposition rate of products in the frying oil is ruled by factors such as the type of food fried, type of oil used, equipment type, frying conditions (time and temperature), frequency of oil replacement, oil quality and presence of antioxidants (CHOE; MIN, 2007;KITA;LISINSKA;GOŁUBOWSKA, 2007;LUNARDI, 2004;JORGE et al, 2005;MACHADO et al, 2007). Osawa, Gonçalves and Mendes (2010) found that, even with some set parameters, the frying process is difficult to control and even frying processes conducted in a laboratory are difficult to reproduce.…”
Section: Discussionmentioning
confidence: 99%
“…The refractive index depends on the degree of unsaturation of the fatty acids of the oil, the oxidized compounds and polymers present, and also varies according to the heat treatment the oil undergoes. Each type of oil, therefore, shows a different refractive index (Ghanei et al, 2011;Jorge et al, 2005;Moradi et al, 2012;Santos et al, 2013).…”
Section: Acidity Level Peroxide Value and Moisture Contentmentioning
confidence: 99%
“…16 As matrizes do grupo B: girassol, milho, soja e pinhão manso; apresentam menor proporção de ácido oleico do que as do grupo A, porém são compostas por uma maior concentração de ácido linoleico. 28,29 Sendo assim, os biodieseis provenientes das matrizes do grupo B serão menos viscosos e apresentarão maiores índices de iodo e menores índices de cetano do que os oriundos do grupo A.…”
Section: Figura 1 Curvas Analíticas Para As Sementes De Cutieira (I)unclassified