Fatty acids definition

Octadecanolc acid, 12-hydroxy-Classification Fatty acid Definition Cl 8 straight chain fatty acid Empirical C HseOs... 

Methyl ester of coconut oil fatty acids Definition Ester of methyl alcohol and coconut fatty acids Formula RCO-OCH3, RCO- represents the fatty acids derived from coconut oil... 

Hexadecylic acid l-Pentadecanecarbor ic acid Ciasaficadon Aliphatic organic compd. saturated fatty acid Definition A mixt. of solid organic acids En xrical C,eH 02 Fmnida CH3(CH2) COOH... 

Synonyms Ethyl a-linolenate Ethyl (9Z,12Z,15Z)-9,12,15-ocladecalrienoate Ethyl cis,cis,cis-9,12,15-octadecatrienoate Ethyl (Z,Z,Z)-9,12,15-ocladecalrienoate LAEE Linolenic acid, ethyl ester 9,12,15-Odadecatrienoic acid, ethyl ester (Z,Z,Z)-9,12,15-Octadecatrienoic acid, ethyl ester Classification Essential fatty acid Definition Ester of ethyl alcohol and linolenic acid Empirical C20H34O2... 

Synonyms Acids, lanolin Fatty acids, lanolin Lanolic acids Lanolin fatty acids Definition Mixture of organic acids obtained from hydrolysis of lanolin Properties Pale yel. to brn. waxy solid Toxicology TSCA listed... 

Synonyms Fatty acids, montan wax Montanic acid Waxes, montan fatty acids Definition Prod, obtained by the oxidation of montan wax Toxicoiogy TSCA iisted... 

CAS 101403-98-9 EINECS/ELINCS 309-936-7 Synonyms Fatty acids, palm kernel oil Palm kernel fatty acids Definition Mixt. of fatty acids derived from palm kernel oil Formula RCOOH, R = palm kernel... 

Polyglycerol fatty esters Polyglyceryl esters of fatty acids Definition Mixed prods, based on polyglycerol contg. 3-10 glycerol units and 2-10 moles of fatty acid... 

Synonyms Coconut fatty acid, monoester with 1,2-propanediol Fatty acids, coco, ester with propylene glycol Propylene glycol ester of coconut fatty acids Definition Ester of propylene glycol and coconut acid Uses Thickener, emulsifier, emollient in cosmetics in food-pkg. adhesives Reguiatory FDA 21CFR 175.105 Canada DSL Manuf.Mstrib. Somerset Cosmetic Co. 

Delpbin has found an artificial ester as an a>Iulteraut of lavender oil which he believes to be the eibyl ester o[ the fatty acids of cocoa-nut oil. Ue has also definitely identified ethyl pbtbalale R an selul-... 

Lippi et. al (87) and Dirstine (88) circumvented titration by converting the liberated fatty acids into copper salts, which after extraction in chloroform are reacted with diethyldithio-carbamate to form a colored complex which is measured photometrically. While the end point appears to be more sensitive than the pH end point determination, the advantages are outweighed by the additional steps of solvent extraction, centrifugation and incomplete extraction when low concentrations of copper salts are present. Other substrates used for the measurement of lipase activity have been tributyrin ( ), phenyl laurate (90), p-nit ro-pheny1-stearate and 3-naphthyl laurate (91). It has been shown that these substrates are hydrolyzed by esterases and thus lack specificity for lipase. Studies on patients with pancreatitis indicate olive oil emulsion is definitely superior to water soluble esters as substrates for measuring serum lipase activity. 

The value to be used for the protein content is defined as the Kjeldahl nitrogen multiplied by 6.25. Similarly, there are definitions regarding saturated fatty acids. 

The Consumer. An important part of the public information process is the consumer. All the nutritional information in the world is no use unless the consumers can make use of it. While the consumer does not need to know the chemical definition of trans fatty acids it is to be hoped that they can understand the need to limit the consumption of such acids. 

The potential for the preservation of lipids is relatively high since by definition they are hydrophobic and not susceptible to hydrolysis by water, unlike most amino acids and DNA. A wide range of fatty acids, sterols, acylglycerols, and wax esters have been identified in visible surface debris on pottery fragments or as residues absorbed into the permeable ceramic matrix. Isolation of lipids from these matrices is achieved by solvent extraction of powdered samples and analysis is often by the powerful and sensitive technique of combined gas chromatography-mass spectrometry (GC-MS see Section 8.4). This approach has been successfully used for the identification of ancient lipid residues, contributing to the study of artifact... 

The enzymes grouped in this section are biologically very distinct. Lip, by definition, catalyzes the hydrolysis of one or more of the three ester bonds linking fatty acids to the hydroxyl positions of glycerol (Equation (6)). 

The term lipid includes all compounds that release fatty acids on digestion, so that this definition is more extensive than that of fat. Compounds which are insoluble in water, soluble in organic solvents but not derived from fatty acids have been termed non-saponifiable lipids. They include steroids, terpenes and ubiquinone. 

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