eicosanoic acid


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eicosanoic acid

[¦ī·kə·sə¦nō·ik ′as·əd]
(organic chemistry)
CH3(CH2)18COOH A white, crystalline, saturated fatty acid, melting at 75.4°C; a constituent of butter. Also known as arachic acid; arachidic acid.
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2 RI, MS (Gondoic acid) 1999 Eicosanoic Acid ME (Arachidic 3.4 RI, MS acid) Docosanoic Acid ME (Behenic 2299 acid) 1.5 RI, MS Total saturated acid 21.8 Total unsaturated acid 77.2 Total 98.9 Unsaturated/saturated 3.6 ME: Methyl ester, MS: Mass spectrometry, RI: Retention index (*) Fatty acids with cis (Z) configuration, (**) The results of the analysis, (***) Identification method: RI: identification based on the retention times of genuine compounds on the HP Innowax column and the literature data; MS: identification based on MS comparison with the database or the literature data.
Similarly the ethyl acetate fraction was dominated by cyclooctaneacetic acid, 2-oxo- with percentage of 11.76% followed by cis-vaccenic acid, cis-11-hexadecandeinal, 4H-pyan-4-one(5-hydroxy-2-(hydroxymethyl))-, Z,Z-10, 12-hexadecandien-1-ol acetate, and eicosanoic acid with percentage of 11.45, 9.35, 8.77, 6.71, and 5.78% respectively.
Fatty acids detected on oil samples were SFA: lauric acid (C12:0), myristic acid (C14:0), palmitic acid (C16:0), and stearic acid (C18:0); MUFA: palmitoleic acid (C19:1n9), oleic acid (C18:1), and eicosanoic acid (C20:1n-9); and PUFA: linoleic acid (C18:2n-6) and linolenic acid (C18:3n3).
A comparison of intensive and semiextensive farms did not reveal any statistically significant differences for C20:0 eicosanoic acid. There were some statistically significant differences between the other fatty acids, which were significantly affected by differentiating fodder and high-protein mixtures, enriched with animal fats and natural plant feed (Table 2).
Palmitic acid (16:0), palmitoleic acid (16:1n7), heptadeconoic acid (17:0), stearic acid (18:0), oleic acid 18:1n7, n9) linoleic acid (18:2, n-6), linolenic acid (18:3, n-3) eicosanoic acid (FA20:2 n-6 ), eicosatrienoic acid (20:3, n-6), arachidonic acid (20:4 n6), eicosapentaenoic acid (20:5, n-3), docosatetraenoic acid, docosapentaenoic acid (22:5 n6) and docosahexaenoic acid (22:6, n-3) were observed in fatty acid components of the liver.
elephantina: hexadecanoic 15, 9,12-octadecadienoic 16, 9-octadecenoic 17, octadecanoic acid 18, butanedioic acid 19, benzoic acid 20, 3phenyl-2-propenoic acid 21, nonanedioic acid 22, tridecanoic acid 23, methyl pentadecanoate 24, methyl hexadec-9-enoate 25, methyl hexadecanoate 26, methyl 3-(3,5-di-tert-butyl4-hydroxy- phenyl)propionate 27, cis-10-Heptadecenoic acid 28, methyl heptadecanoate 29, methyl octadecanoate 30, cis-5,8,11,14,17-eicosapenta-enoic acid 31, eicosanoic acid 32, methyl tetracosanoate 33, pentacosanoic acid 34, hexacosanoic acid 35, methyl octacosanoate 36, and tetradecanedioic acid 37.
It employs fully validated methods to analyze eicosanoic acid, catecholamines, steroids, energy metabolites and lipids.
1 and 2).The concentration of eicosanoic acid in T1, T2, T3 and T4 was 0.15%, 0.22%, 0.29% and 0.35%.
There were nine (38.30%) moderately active antimicrobial compounds: 9.92% of phytol, 9.75% of 10-octadecenoic acid methyl ester, 5.46% of n-hexadecenoic, 5.27% of 9-hexadecenoic acid, 3.48% of octadecanoic acid methyl ester, 1.22% of heptadecanoic acid methyl ester, 1.14% of eicosanoic acid methyl ester, 1.04% of 9-hexadecenoic acid methyl ester (Z)-, and 1.02% of squalene.
# Double Common name #C Bonds Scientific name Palmitic Acid 16 0 hexadecanoic acid Palmitoleic Acid 16 1 9-hexadecenoic acid Stearic Acid 18 0 octadecanoic acid Oleic Acid 18 1 9-octadecenoic acid Vaccenic Acid 18 1 11-octadecenoic acid Linoleic Acid 18 2 9,12-octadecadienoic acid Alpha-Linolenic 18 3 9,12,15-octadecatrienoic acid Acid (ALA) Gamma-Linolenic 18 3 6,9,12-octadecatrienoic acid Acid (GLA) Arachidic Acid 20 0 eicosanoic acid Gadoleic Acid 20 1 9-eicosenoic acid Arachidonic Acid (AA) 20 4 5,8,11,14-eicosatetraenoic acid EPA 20 5 5,8,11,14,17-eicosatetraenoic acid Behenic acid 22 0 docosanoic acid Erucic acid 22 1 13-docosenoic acid DHA 22 6 4,7,10,13,16,19-docosahexaenoic acid Lignoceric acid 24 0 tetracosanoic acid Table II.
The proportion of eicosanoic acid (C20:1 [omega]-9) was significantly higher in women than men (Table 1).
Comments: Shampoo-friendly quat based on 18-methyl eicosanoic acid, primary lipid of hair surface; replenishes lipids lost to damage from chemical treatment or weathering; helps restore hair's natural hydrophobicity; surfactant-soluble, water-dispersable, easy to use.