The Air Blowing of Cod Liver Oil. II. Changes in Fatty Acid Composition as Determined by Gas–Liquid Chromatography

1963 ◽  
Vol 20 (1) ◽  
pp. 89-94 ◽  
Author(s):  
P. M. Jangaard ◽  
R. G. Ackman ◽  
R. D. Burgher ◽  
M. L. Hughes
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Unsaturated Fatty Acids ◽  
Gas Liquid Chromatography ◽  
Cod Liver Oil ◽  
Highly Unsaturated Fatty Acids ◽  
Air Blowing ◽  
Two Temperatures ◽  
Higher Temperature

The effect of air blowing at two temperatures, 80 and 130 °C, on the major component fatty acids of cod liver oil has been determined. As expected, the proportions of the highly unsaturated fatty acids drop rapidly, especially at the higher temperature investigated. The saturated acids are virtually unchanged under the conditions employed, while the proportion of monounsaturated acids shows only a slight drop.

scholarly journals Study on fatty acid composition and physico-chemical properties of Nyctanthes arbortristis root

1970 ◽  
Vol 24 (2) ◽  
pp. 202-208 ◽  
Author(s):  
Mohammad Mizanur Rahman ◽  
Mohammad Shahjahan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Fatty Acid ◽  
Acid Composition ◽  
Unsaturated Fatty Acids ◽  
Chemical Properties ◽  
Chemical Society ◽  
Gas Liquid Chromatography ◽  
Crude Fibre

Fatty acid composition of Nyctanthes arbortristis Linn root extracted successively  with light petroleum ether (40-600C bp.)- n-hexane and chloroform were analyzed by gas liquid chromatography (GLC). Twenty one fatty acids were identified in the Seuli root. The major saturated and unsaturated fatty acids are palmitic acid (C16:0, 13.97%) and oleic acid (C18:1, 28.43%). Physio-chemical characteristics, such as iodine value, moisture, ash, lignin and crude fibre of the Seuli root were also determined.   Keywords: Nyctanthes arbortristis Linn; Seuli; root; fatty acid composition; gas liquid chromatography. DOI: http://dx.doi.org/10.3329/jbcs.v24i2.9709 Journal of Bangladesh Chemical Society, Vol. 24(2), 202-208, 2011

scholarly journals The Fatty Acid Composition and Properties of Oil Extracted from Seeds of Carum roxburghianum Benth. (Radhuni)

1970 ◽  
Vol 46 (1) ◽  
pp. 111-116
Author(s):  
BK Paul ◽  
MN Ahmed ◽  
GC Saha
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Acid Composition ◽  
Unsaturated Fatty Acids ◽  
Chemical Properties ◽  
Gas Liquid Chromatography ◽  
Physico Chemical

Carum roxburghianum Benth. (Radhuni) seeds of three different places of Bangladesh were investigated to determine the fatty acid composition and physico-chemical properties of extracted oil. The seeds were found to contain oil ranging from 15.31 to 20.32%. The percentage compositions of fatty acids were identified and quantified by Gas Liquid Chromatography (GLC). The saturated and unsaturated fatty acids in extracts were 4.95 to 6.27% and 93.73 to 94.89%, respectively. Among six fatty acids identified in this study, oleic acid contributed the highest portion (76.44 to 79.16%), whereas, linoleic (1.38%), linolenic (15.28 - 15.40%), stearic (0.70%), palmitic (4.95 - 5.57%) and ecosenoic acid (0.51 - 15.73%) together contributed the rest. Physico-chemical properties of the oil extracted were also investigated. The specific gravity, refractive index, optical rotation were recorded as 0.903 to 0.918 at 30°C, 1.465 to 1.470 at 30°C and +8.54° to +9.56° at 26°C, respectively. The chemical properties like saponification value (183.52 - 193.45), iodine value (80.99 - 120.90), peroxide value (23.25 - 36.16), acid value (143.84 - 162.99), ester value (48.12 - 62.03), percentage of unsaponifiable matter (3.56 - 6.51%), Reicher-Meissel value (2.00 - 3.12), Polenske value (4.12 - 6.20) and Henher value (85.12 - 95.56) were determined. Overall Radhuni seeds oil can be considered as a good source of oleic acid. Keywords: Carum roxburghianum; Radhuni seed oil; fatty acid composition; oleic acid; Gas Liquid Chromatography. DOI: http://dx.doi.org/10.3329/bjsir.v46i1.8113 Bangladesh J. Sci. Ind. Res. 46(1), 111-116, 2011

Ozonolysis of unsaturated fatty acids. II. Esterification of the total products from the oxidative decomposition of ozonides with 2,2-dimethoxypropane

1967 ◽  
Vol 45 (13) ◽  
pp. 1405-1410 ◽  
Author(s):  
John D. Castell ◽  
R. G. Ackman
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Unsaturated Fatty Acids ◽  
Performic Acid ◽  
Acid Oxidation ◽  
Gas Liquid Chromatography ◽  
Positional Isomers ◽  
Flame Ionization ◽  
Hydrogen Flame

The total acidic products from the performic acid oxidation of the ozonide of methyl oleate formed in methanol may be esterified directly in a few hours with 2,2-dimethoxypropane. The ester concentrations are adequate for the determination of the positional isomers of monoethylenic fatty acids directly from the reaction mixture, using a hydrogen flame ionization gas–liquid chromatography detector. Dimethyl sulfoxide was not required to prevent the breakdown of 2,2-dimethoxypropane under the conditions employed.

scholarly journals Studies on Fatty Acid Composition and Proximate Analyses of Anethum Sowa L. (Dill) Seed

1970 ◽  
Vol 42 (4) ◽  
pp. 455-464 ◽  
Author(s):  
Md Moshfekus Saleh-E-In ◽  
Sudhangshu Kumar Roy
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Acid Composition ◽  
Gas Liquid Chromatography ◽  
Good Source ◽  
Anethum Sowa ◽  
Proximate Analyses

Anethum sowa L. (Dill) seeds were investigated to determine the fatty acid composition and proximate analyses. The seeds contain 9.36 % fatty oil. The saturated and unsaturated fatty acids contributed 6.22% and 93.78% respectively of the oil. The per cent composition of the extracted oil was identified by Gas Liquid Chromatography (GLC). Among the six fatty acids identified from this study oleic acid contributed the highest proportion (87.10%), where as, linolenic, palmitic, stearic, behenic and arachidic all together contributed the rest (12.90%). Proximate analyses showed that A. sowa. seeds are good source of dietary fibre. Overall Dill seeds oil can be considered as a good source of oleic acid. Key words: Anethum sowa, dill seed oil, fatty acid composition, oleic acid, linolenic acid, Gas liquid chromatography. Bangladesh J. Sci. Ind. Res. 42(4), 455-464, 2007

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