Oleic acid Omega

The sources of these fatty acids in the cells are those that are present at position 2 of the membrane phospholipids. The proportion of these two in the phospholipid depends to a large extent on the type of fatty acids in the triacylg-lycerol in the diet, that is, the amount of the omega-6 (lin-oleic acid) and that of the omega-3 (a-linolenic acid). 

Alpha oxidation and omega oxidation. Animal tissues degrade such straight-chain fatty acids as palmitic acid, stearic acid, and oleic acid almost entirely by (3 oxidation, but plant cells often oxidize fatty acids one carbon at a time. The initial attack may involve hydroxylation on the a-carbon atom (Eq. 17-3) to form either the d- or the L-2-hydroxy add.17 18-32 323 The L-hydroxy acids are oxidized rapidly, perhaps by dehydrogenation to the oxo acids (Eq. 17-3, step b) and oxidative decarboxylation, possibly utilizing H202 (see Eq. 15-36). The D-hydroxy acids tend to accumulate... 

Table 4.2 lists some common examples of fatty acids, their sources, common names, and systematic names [1]. Many additional terms are used to distinguish unsaturated fatty acids by the location of the first double bond relative to the omega (co) or —CHg carbon. Thus oleic acid is both A and a C18 1 co-9 acid. Linoleic acid is a and C18 2 (0-6 acid. Linolenic acid is both and a C18 3 co-3 acid. 

Fatty acid composition of regular flax oil is different from other commercial oils because of the very high contribution of ALA, usually above 50% (Table 2). Because of the high content of this unique fatty acid, flaxseed and flax oil are often used as food supplements, where enrichment with omega-3 fatty acids is needed. This fatty acid is susceptible to oxidation it oxidizes 20 0 times faster than oleic acid and 2 times faster than linoleic acid (8). This property makes the oil a good material for paint and plastic production where fast oxidation is required. Flax oil contains low amounts of saturated fatty acids (SFA) compared with low linolenic flax oil (Linola), soybean, and sunflower oils however, it is higher than canola oil (Table 2). Canola oil contains the lowest amount of SFA among all commercial oils. 

Oleic acid (18 1 tjj9), a monounsaturated fatty acid, is the major fatty add in human milk. Oleic acid, as well as the products resulting from its further desaturation and elongation, are called the omegit-9 fatty adds. The omega-9 fatty acid 24 l(u9 is a major fatty acid in the membranes of nerves. The omega-9 fatty add 20 3to9 is called the Mead acid. Mead acid accumulates in the body in response to a defi-... 

If you ve encountered date pits, you know their usual fate—they are promptly discarded. But wait a nutritional study of date pits has documented their exceptional nutrient density, especially of protein, dietary fiber, and omega oils composed mainly of oleic acid, the same omega-9 monounsaturated fat famous in olive oil. Date pits may offer an inexpensive nutrient and oil source from what is currently a waste material. Simply through extraction or pulp processing of the pits, some future entrepreneur will recover those inedible pits and transform them into useful food products ... 

The major component of cranberry seed extracted via either pure CO2 or hexane was linoleic acid (omega-6 fatty acid) as determined by total ion chromatogram and selected ion chromatogram with an internal standard. The broad intense linoleic acid chromatographic peak is believed to be a mixture of positional isomers of the CI8 2 fatty acid such as 9,12-octadienoic acid 8,11-octadienoic acid, 5,7-octadienoic acid, and 9,11-octadienoic acid. Two other Cl8 fatty acids were identified oleic acid and linolenic acid. The extracted ion of mass 297 0.5 seen at retention time 44.30 min corresponded to oleic acid (molecular weight = 296.5, match quality = 91%). The extracted ion of mass 293 +,0.5 seen at retention time 44.32 min corresponded to linolenic acid (molecular weight = 292.46, match quality = 99%). 

Problems 7.17 to 7.19 refer to the system cottonseed oil (A)-liquid propane (B)-oleic acid (C) at 372 K and 42.5 atm, Equilibrium tie-line data taken from Treybal (1980) in weight percent are given in Table 7.7. Oleic acid is a monounsaturated fatty acid found naturally in many plant sources and in animal products. It is an omega-nine fatty acid, and considered one of the healthier sources of fat in the diet. It s commonly used as a replacement for animal... 

Unsaturated fatty acids are often referred to by an omega-(w-) number to indicate the location of the double bond nearest the methyl end of the carbon chain. A number is placed after omega- or double bond, counting from the methyl carbon, not the COOH carbon. For example, palmitoleic and oleic acids are omega-7 and omega-9 fatty acids, respectively. 

Lopez-Huertas, E. (2010). Health effects of oleic acid and long chain omega-3 fatty acids (EPA and DHA) enriched milks. A review of intervention studies. Pharmac. Res.., 67(3), 200-207. 

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