Results 171 to 180 of about 2,855 (198)
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Food Research International, 2019
Indices including conductivity, short-chain carboxylic acids, total polar material, acid value, peroxide value and fatty acid composition in water or oil were monitored during Rancimat test of soybean oil from 90 °C to 120 °C. Formic, acetic, propionic and butyric acids in water were detected by ion chromatography.
Xu Li +6 more
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Indices including conductivity, short-chain carboxylic acids, total polar material, acid value, peroxide value and fatty acid composition in water or oil were monitored during Rancimat test of soybean oil from 90 °C to 120 °C. Formic, acetic, propionic and butyric acids in water were detected by ion chromatography.
Xu Li +6 more
openaire +4 more sources
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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Fuel, 2021
Abstract Due to the fact that modern diesel engines require very well-defined fuel properties to ensure high efficiency, low emissions and a long durability, the fuel properties and their determination methods have to be standardized. Most diesel fuel standards allow a certain volume fraction of biodiesel that can be blended to fossil diesel fuel ...
Ferdinand Bär +5 more
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Abstract Due to the fact that modern diesel engines require very well-defined fuel properties to ensure high efficiency, low emissions and a long durability, the fuel properties and their determination methods have to be standardized. Most diesel fuel standards allow a certain volume fraction of biodiesel that can be blended to fossil diesel fuel ...
Ferdinand Bär +5 more
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Carboxylic acid emissions from soybean biodiesel oxidation in the EN14112 (Rancimat) stability test
Fuel, 2016Abstract Nine carboxylic acids (formic, acetic, propionic, butyric, succinic, oxalic, lactic, pyruvic and citric) and six inorganic ions (sodium, potassium, ammonium, chloride, nitrate and phosphate) have been measured by ion chromatography during soy biodiesel oxidation carried out according to the EN14112 oxidative stability test.
Anaildes L. de Carvalho +5 more
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Journal of Food Composition and Analysis, 2023
Oats are a good source of oil containing polyunsaturated fatty acids and natural antioxidants such as tocols. This study investigated tocol composition relative to oxidative stability in crude oils from eight oat cultivars. Tocol content in the cultivars was as follows: Santini > Saul > Korok > Atego > Kamil > Patrik > Oliver > Marco Polo.
Kshitiz Pokhrel +3 more
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Oats are a good source of oil containing polyunsaturated fatty acids and natural antioxidants such as tocols. This study investigated tocol composition relative to oxidative stability in crude oils from eight oat cultivars. Tocol content in the cultivars was as follows: Santini > Saul > Korok > Atego > Kamil > Patrik > Oliver > Marco Polo.
Kshitiz Pokhrel +3 more
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Quantitation of Aging Products Formed in Biodiesel during the Rancimat Accelerated Oxidation Test
Energy & Fuels, 2014Biodiesel (rapeseed oil methyl ester) was aged in a Rancimat device at a temperature of 110 °C and an air flow of 10 L/h. Time-resolved analyses applying gas chromatography–flame ionization detection, gas chromatography–mass spectrometry, and ion-exchange chromatography on the formation of aging products were performed.
Stephanie Flitsch +5 more
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Shelf-Life Prediction of an Infant Formula Using an Accelerated Stability Test (Rancimat)
Journal of Agricultural and Food Chemistry, 1995The purpose of this study was to predict the shelf life of an infant formula using accelerated stability tests to save time. The stability of two infant formulas (a commercially available infant formula and the same infant formula supplemented with microencapsulated fish oil) was followed throughout 18 months of storage at room temperature and for 20 ...
Sylvia de la Presa-Owens +2 more
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Evolution of Oxidative Values during Kinetic Studies on Olive Oil Oxidation in the Rancimat Test
Journal of the American Oil Chemists' Society, 2013AbstractA comparative study was carried out in order to evaluate the kinetics of the formation of a number of primary and secondary oxidation products during oxidation of olive oil in the Rancimat test at 100–130 °C. There were good correlations between the Rancimat index (OSI) and stability indices (IP) measured in the Rancimat test with no ...
Reza Farhoosh +1 more
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Fette, Seifen, Anstrichmittel, 1986
AbstractThe performance of the 617‐Rancimat(R), an automated analyser made by Metrohm of Switzerland, for determining the oxidative stability of edible oils (Active Oxygen Method) has been examined in an interlaboratory test. The performance of this version of the Swift stability test, carried out by eleven laboratories in the Netherlands and the ...
W. J. Woestenburg, J. Zaalberg
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AbstractThe performance of the 617‐Rancimat(R), an automated analyser made by Metrohm of Switzerland, for determining the oxidative stability of edible oils (Active Oxygen Method) has been examined in an interlaboratory test. The performance of this version of the Swift stability test, carried out by eleven laboratories in the Netherlands and the ...
W. J. Woestenburg, J. Zaalberg
openaire +1 more source