Results 161 to 170 of about 2,370 (196)
Fuel Processing Technology, 2011 This short communication reports an assessment of the oxidation process of castor oil fatty methyl ester samples submitted to Rancimat (EN 14112) and PetroOXY (ASTM-D7545) oxidation methods.
F Murilo T． Luna +2 more
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Oxidative stability of potato chips determined by Rancimat
Journal of the American Oil Chemists' Society, 1992During recent years the Rancimat apparatus has been used extensively to determine the stability of fats and oils. Most stability tests for fat‐containing foods are performed on the extracted oil. The objective of this research was to observe the behavior of potato chips in the racimat without oil extraction. Determinations were carried out at 110°C and
D. Barrera‐Arellano, W. Esteves
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Marine Drugs, 2017 Different biological sources of n-3 polyunsaturated fatty acids (n-3 PUFA) in mainstream commercial products include algae and fish. Lipid oxidation in n-3 PUFA-rich oil is the most important cause of its deterioration.
Kai-Min Yang +2 more
exaly +2 more sources
Evaluation of antioxidants for cod liver oil by chemiluminescence and the rancimat method
Journal of the American Oil Chemists' Society, 1995Commercial blends of natural antioxidants,viz., tocopherol concentrates, rosemary extracts, sage extracts, and lecithins, were tested for their ability to stabilize cod liver oil. The antioxidants were tested by using the Rancimat apparatus at 80°C and by a method based on hypochlorite‐activated chemiluminescence analysis of samples stored at 35°C for ...
Ivan C. Burkow +2 more
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RANCIMAT TEST FOR THE ASSESSMENT OF USED FRYING OILS QUALITY
Journal of Food Lipids, 2007ABSTRACT The oxidative/oil stability index (OSI) of the frying oils decreased exponentially during the frying process. The slope of the linear equation obtained from the plotting of the logarithms of OSIs versus frying times, which was considered to be a measure of the rate of OSI decrease during the frying process, was significantly different for the ...
REZA FARHOOSH +1 more
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Temperature effects on the determination of oxidative stability with the metrohm rancimat
JAOCS, Journal of the American Oil Chemists' Society, 1992Reproducibility of Oil Stability Index (OSI) values determined on the Metrohm Rancimat was measured with a single run and between experimental runs. Within a single experiment, a range of 0.13 h and a standard deviation of 0.066 h were determined. For multiple experiments, standard deviations of 0.24 and 0.26 were obtained for soybean and low‐erucic ...
Gerard L. Hasenhuettl, Peter J. Wan
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Effect of Various Compounds on Virgin Olive Oil Stability Measured by Rancimat
Journal of Agricultural and Food Chemistry, 1999Phenolic and orthodiphenolic compounds together with carotenoids, tocopherols, pigments, and fatty acids were tested for their antioxidant effect in 79 samples of virgin olive oils cv. Picual and Hojiblanca. A linear regression based on the oleic/linoleic ratio and the contents of phenols and tocopherols showed a good correlation (adjusted-R(2) = 0.91)
R, Aparicio +3 more
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Food Research International, 2009 The aim of this research was to study lipid oxidation in dried microencapsulated oils (DMOs) under Rancimat test conditions (100 °C, 20 L air/h). Samples were prepared by freeze-drying of sunflower-oil-in-water emulsions containing sodium caseinate and ...
Joaquin Velasco +2 more
exaly +2 more sources
Assessment of the Oxidation Stability of Biodiesel Fuel using the Rancimat and the RSSOT methods
SAE Technical Paper Series, 2014<div class="section abstract"><div class="htmlview paragraph">For many years Rancimat was the only standardized method for measuring the oxidation stability of FAME and FAME/diesel blends. However this method is not applicable to pure conventional petroleum products and so the effect of FAME on diesel fuel stability could not be evaluated ...
George S. Dodos +3 more
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Pigment & Resin Technology, 1990
The 679 represents the latest in the ever increasing number of “special analytical instruments” from METROHM. The 679 now not only offers the possibility for the determination of the oxidative stability of oils and related products, but also permits the testing of the thermal stability of plastics.
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The 679 represents the latest in the ever increasing number of “special analytical instruments” from METROHM. The 679 now not only offers the possibility for the determination of the oxidative stability of oils and related products, but also permits the testing of the thermal stability of plastics.
openaire +1 more source