Results 241 to 250 of about 380,995 (285)
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Real-Time Model for Carbonyl Value as a Function of Total Polar Compounds in Oil during Frying
Analytical Letters, 2021Changes in total polar compounds (TPC) in 10 edible oils and their relationship with changes in carbonyl value (CV) were determined during intermittent frying at 180 °C.
Xiaofang Liu +5 more
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Food Chemistry, 2021
The purpose of this study was to construct a fusion model using probe-based and non-probe-based fluorescence spectroscopy and low-field nuclear magnetic resonance spectroscopy (Low-field NMR) for rapid quality evaluation of frying oil. Iron tetraphenylporphyrin (FeTPP) was selected as the probe to detect polar compounds in frying oil samples. Non-probe-
Haiyang Gu +5 more
openaire +2 more sources
The purpose of this study was to construct a fusion model using probe-based and non-probe-based fluorescence spectroscopy and low-field nuclear magnetic resonance spectroscopy (Low-field NMR) for rapid quality evaluation of frying oil. Iron tetraphenylporphyrin (FeTPP) was selected as the probe to detect polar compounds in frying oil samples. Non-probe-
Haiyang Gu +5 more
openaire +2 more sources
Journal of the American Oil Chemists' Society, 1999
AbstractA new differential scanning calorimetry (DSC) method was developed for the determination of total polar compounds (TPC) in heated oils. Three different types of edible oils, refined, bleached, and deodorized corn oil (CO), palm olein (RBDPO), and soybean oil (SO), were used in this study, Each type of edible oil was heated at 180°C in a deep ...
C. P. Tan, Y. B. Che Man
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AbstractA new differential scanning calorimetry (DSC) method was developed for the determination of total polar compounds (TPC) in heated oils. Three different types of edible oils, refined, bleached, and deodorized corn oil (CO), palm olein (RBDPO), and soybean oil (SO), were used in this study, Each type of edible oil was heated at 180°C in a deep ...
C. P. Tan, Y. B. Che Man
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Solid Fat Content as a Substitute for Total Polar Compound Analysis in Edible Oils
Journal of the American Oil Chemists' Society, 2012AbstractThe solid fat contents (SFC) of heated edible oil samples were measured and found to correlate positively with total polar compounds (TPC) and inversely with triglyceride concentration. Traditional methods for determination of TPC require a laboratory setting and are time and solvent intensive.
Erica L. Bakota +2 more
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A Quick Method for Determining Total Polar Compounds of Frying Oils Using Electric Conductivity
Food Analytical Methods, 2015Oil qualities during 40 h unconsecutive frying process were analyzed by combined tradition chemical indexes and electric conductivity (EC), and the correlation between quality index of frying oil and total polar compounds (TPC) was also studied. The result shows that frying oil’s quality trends to deterioration with the extension of frying time.
Jinwei Li +3 more
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Food Chemistry, 2023
This study evaluated the validity of total polar compounds (TPC) and its three components in monitoring the evolution of epoxy fatty acids in frying oil under fast food restaurant conditions. The content of epoxy fatty acids can be predicted using the TPC rather than oxidized triglyceride monomer. When TPC content reached 24 g/100 g, 25 g/100 g, and 27
Xu, Li +7 more
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This study evaluated the validity of total polar compounds (TPC) and its three components in monitoring the evolution of epoxy fatty acids in frying oil under fast food restaurant conditions. The content of epoxy fatty acids can be predicted using the TPC rather than oxidized triglyceride monomer. When TPC content reached 24 g/100 g, 25 g/100 g, and 27
Xu, Li +7 more
openaire +2 more sources
The Journal of Chemical Physics, 1996
Two simple techniques using single-crystal specimens in polarized infrared attenuated total reflection (ATR) spectroscopy were developed for structural studies of molecular crystals, in particular of long-chain compounds. The first technique relates to a rotatory change of sample setting around the normal of the sampling plane of an internal reflection
Fumitoshi Kaneko +2 more
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Two simple techniques using single-crystal specimens in polarized infrared attenuated total reflection (ATR) spectroscopy were developed for structural studies of molecular crystals, in particular of long-chain compounds. The first technique relates to a rotatory change of sample setting around the normal of the sampling plane of an internal reflection
Fumitoshi Kaneko +2 more
openaire +1 more source