Oleic oils

The Oleic Linoleic Acid Group This is the most common type of vegetable oil and includes peanut or groundnut (38% oleic and 41% linoleic acid), safflower (14% and 75%), sesame (38% and 45%), and sunflower (20% and 69%). The sum of these two acids is generally 80-90% so there can only be low levels of saturated or other acids. At the present time, there is a demand for high oleic oils, so variants of these oils enriched in oleic acid have been developed (Section 4.2.4). Cottonseed (18% and 51%) differs from the others cited here in its higher level of palmitic acid. Low-erucic rape/canola (56% and 26%) and soybean oil (22%... 

Regular Oil (30) Methyl Esters of Regular Oil (41) Methyl Esters of Regular Oil (123) Methyl Esters of High-Oleic Oil (41)... 

Razali, I., Fauziah, A. and Nor Aini Sudin (1999) Quality of potato chips fried in palm olein and high oleic oil sunflower oil during batch frying, in Proceedings of 1999 PORIM International Palm Oil Congress (eds A.N. Ma, M.C. Chow, C.L. Chong, K. Sivasothi, K. Ainie and A. Mohd Suria), Kuala Lumpur, pp. 237-246. 

Composition and Uses. Palm oil is an oleic oil, which is distinguished by its high percentage of the saturated palmitic acid. Palm-kernel oil is a lauric oil and to some degree exchangeable with coconut oil due to a similar fatty acid composition. 

J. D. E. Perez, D. P. Wiesenborn, D. M. Haagenson and R. L. Brudvik, Epoxy resins from high-oleic oils applied to composites , American Society of Agricultural and Biological Engineers Annual International Meeting 2009, Reno, NV, 1-14. 

The flavor and oxidative stability of linolenate-containing oils can be improved substantially by blending them with different levels of high-oleic oils to lower the linolenate content. High-oleic sunflower and safflower oils are relatively... 

Most of the technically produced a-sulfo fatty esters are prepared from unbranched saturated fatty acid esters that are derived from C8-C22 carboxylic acids and Ci C3 alcohols. In particular, the C12 (lauric), C14 (myristic), C16 (palmitic), and Cig (stearic) acids are interesting because the ester sulfonates with these carbon chains have the best properties for surfactant applications. Triglycerides with the needed number of carbons are available in coconut oil (—48% C12, 17% C14), palm kernel oil (-50% C12, 17% C14), palm oil (—46% Cie), and tallow (—26% Cie, 23% Cig) [3,8]. Unsaturated esters normally contained in natural oils and tallow (e.g., tallow contains about 43% of oleic oil) cause an undesirable color of the ester sulfonates. Therefore, the esters must be distilled or hydrogenated before sulfonation so that their iodine number is less than 0.5 [38]. 

Sridhar, R, Lakshminarayana, G and Kaimal, TNB (1991) Modification of selected edible vegetable oils to high oleic oils by lipase-catalyzed ester interchange. /. Agric. Food Chem., 39, 2069-2071. 

Olive oil has long been recognized as an oil rich in oleic acid and its use is actively promoted as a component of the Mediterranean lifestyle. How far this healthy lifestyle is due to olive oil as opposed to other factors and how far the benefits of olive oil are related to its high level of oleic acid rather than the many minor phenolic components present in this oil remains uncertain (Luchetti, 2001). In addition to olive oil and the high-oleic oils to be discussed later, almond (61% oleic acid), and macadamia (50% oleic acid, together with 22% palmitoleic acid (see Section B below)) are also oleic-rich oils. 

Table 1. High-oleic oils (>74% oleic acid) derived from rapeseed/canola, sunflower, soybean, and safflower oils ...

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