Stability ofd-a -tocopherol alone, in solvents, and in methyl esters of fatty acids

1957 ◽  
Vol 34 (10) ◽  
pp. 513-515 ◽  
Author(s):  
H. J. Lips
Keyword(s):  
Fatty Acids ◽  
Methyl Esters

Evaluation of Ethoxylated Rapeseed Oil Fatty Acids Methyl Esters as Nonionic Co-Surfactants in Hand Dishwashing Liquids

2019 ◽  
Vol 56 (4) ◽  
pp. 279-286 ◽  
Author(s):  
Tomasz Wasilewski ◽  
Yong-Qiang Sun ◽  
Wiesław Hreczuch ◽  
Artur Seweryn ◽  
Tomasz Bujak
Keyword(s):  
Fatty Acids ◽  
Rapeseed Oil ◽  
Methyl Esters

Gas chromatographic–mass spectrometric detection of 2- and 3-hydroxy fatty acids as methyl esters from soil, sediment and biofilm

2003 ◽  
Vol 783 (2) ◽  
pp. 443-451 ◽  
Author(s):  
M.M. Keinänen ◽  
L.K. Korhonen ◽  
P.J. Martikainen ◽  
T. Vartiainen ◽  
I.T. Miettinen ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Methyl Esters ◽  
Mass Spectrometric ◽  
Mass Spectrometric Detection ◽  
Hydroxy Fatty Acids ◽  
Soil Sediment ◽  
Chromatographic Mass

scholarly journals CONTENT OF FATTY ACIDS IN CORN (ZEA MAYS L.) OIL FROM ECUADOR

2017 ◽  
Vol 10 (8) ◽  
pp. 150 ◽  
Author(s):  
Carrillo W ◽  
Carpio C ◽  
Morales D ◽  
Vilcacundo E ◽  
Álvarez M ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Zea Mays ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Corn Oil ◽  
Methyl Esters ◽  
Total Content ◽  
Pressing Method ◽  
A Value ◽  
Omega 6

  Objective: The aim of this work was to determine the fatty acids content in corn seeds oil (Zea mays) sample cultivated in Ecuador.Methods: Corn oil was obtained from corn oil seeds using the cold pressing method. Methyl esters fatty acids analysis were carried out using the gas chromatography (GC) method with a mass selective detector and using the database library NIST 14.L to identify the compounds present in the corn seed oil.Results: Methyl esters fatty acids were identified from corn (Z. mays) seeds using the GC mass spectrometer (GC-MS) analytical method. Fatty acids were analyzed as methyl esters on a capillary column DB-WAX 122-7062 with a good separation of palmitic acid, stearic acid, oleic acid, elaidic acid, linoleic acid, arachidic acid, and linolenic acid. The structure of methyl esters fatty acids was determined using the GS-MS method. Corn oil has a high content of linoleic acid (omega 6) with a value of 52.68% of the total content of fatty acids in corn oil and 29.70% of oleic acid (omega 9) of the total content of fatty acids in corn oil. The sample presented a value of 12.57% of palmitic acid.Conclusions: Corn oil shows a good content of fatty acids omega 6 and 9. The higher value was of omega 6 with 52.68% content. Corn oil has a good proportion of polyunsaturated of lipids (53.80%) and 14.86% of saturated lipids.

scholarly journals Fatty Acids Profiles of Stipe and Blade from the Norwegian Brown Macroalga Laminaria hyperborea, Using Off-Line SPE and GC-MS

2016 ◽  
Author(s):  
Lena Oksdøl Foseid ◽  
Hanne Devle ◽  
Yngve Stenstrøm ◽  
Carl Fredrik Naess-Andresen ◽  
Dag Ekeberg
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Neutral Lipids ◽  
Methyl Esters ◽  
Lipid Fraction ◽  
Environmental Benefits ◽  
Laminaria Hyperborea ◽  
Alpha Linolenic Acid ◽  
Lipid Fractions

A thorough analysis and comparison of the fatty acid profiles of stipe and blade from Laminaria hyperborea, a kelp species found in the northern Atlantic, is presented. Lipids were extracted and fractionated into neutral lipids, free fatty acids and polar lipids, then derivatized to fatty acid methyl esters prior to GC-MS analysis. A total of 42 fatty acids were identified and quantified, including the n-3 fatty acids α-linolenic acid, stearidonic acid and eicosapentaenoic acid. An n-6/n-3 ratio of 0.8:1 was found in blade and 3.5:1 in stipe, respectively. The ratios vary between the lipid fractions within stipe and blade, with the lowest ratio in the polar lipid fraction of blade. The fatty acid amounts are higher in blade than in stipe, and the highest amounts of n-3 fatty acids are found within the neutral lipid fractions. The amounts of polyunsaturated fatty acids are 3.4 times higher in blade than stipe. This study highlights the compositional differences between the lipid fractions of stipe and blade from L. hyperborea. The amount of polyunsaturated fatty acids, compared to saturated- and monounsaturated fatty acids, as well as the n-6/n-3-ratio, is known to influence human health. In the pharmaceutical, food, and feed industries this can be of importance for production and sale of different health products. Additionally, lipids are today among the unused by products of alginate production, exploiting this material for commercial interest should give both economical and environmental benefits.

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