Linoleic acid almonds

A GC trace of methanolysed almond oil is shown in Figure 11.9. It can be seen that the methyl esters stearic, oleic and linoleic acid are incompletely resolved on a BPX-5 column. The esters of the minor C-20 and C-22 acids are also incompletely... 

Group 3 A group of high-oleic acid, low-linoleic acid oils, such as olive oil from the pericarp of olive fruit. Seed oils, such as almond oil, hazelnut oil, or avocado oil, also belong to this group (Table 11.5). 

Othors. Triacylglycerols (triglycerides) (10) (70-72) make up a large part of the storage lipids in animal and plant cells. They are now receiving renewed attention as a candidate feedstock for the production of polymer resins. When liquid at room temperature they are called oils. Commercially important oils are produced from the seeds of soybeans, com (maize), cotton, sunflowers, flax (linseed), rape, castor beans, tung, palms, peanuts, olives, almonds, coconuts, and canola. Over 7.3 million metric tons of vegetable oils are produced in the United States each year, mainly from soybean, flax, and rapeseed. Soy oil alone accounts for 80% of the seed oils produced in the United States. Soy oil contains about 55% linoleic acid (11), 22% oleic acid (12) and 10% palmitic acid (13). 

All of the nuts in Table N-4, except almonds, cashews, coconuts, filberts, and pistachios contain liberal amounts of linoleic acid—the essential polyunsaturated fatty acid. One ounce (28 g) of peanuts, Brazil nuts, or English walnuts provides about 4, 7, and 10 g of linoleic acid, respectively. Therefore, It may be better to rely on nuts rather than vegetable oils to supply the essential fatty acid linoleic acid because the nuts also furnish protein, minerals, and certain vitamins that are not supplied by the oils. Shelled nuts, like vegetable oils, should be kept refrigerated to prevent them from becoming rancid. 

Almond oil consists chiefly of glycerides of oleic acid, with smaller amounts of linoleic and palmitic acids. The PhEur 2005 describes almond oil as the fatty oil obtained by cold expression from the ripe seeds of Prunus dulcis (Miller) DA Webb var. dulcis or Prunus dulcis (Miller) DA Webb var. amara (DC) Buchheim or a mixture of both varieties. A suitable antioxidant may be added. 

Oil of Sweet Almond, Expressed almond oil. Fixed oil from kernels of varieties of Frunus amygdalus Stokes iAmygdalus communis L.), Rosaceae. Constit Chiefly glyceryl oleate with small amounts of glycerides of linolic etc., acids. Stated to contain no stearic acid. 

Fatty oils and fat-like substances - Fats and oils are esters of glycerin and higher fatty adds. In pure form, oils (castor, sea-buckthom and others) are used as remedies or as solvents for pharmaceutical substances. Fatty oils are used in medicine to make ointments, liniments and emollients, and for skin care and therapeutic massage. Some oils have therapeutic action. For example castor oil is used as a puigative and sea-buckthom is used internally to treat stomach and duodenal ulcers and externally for skin bums. Plant waxes, sterols and other substances are fat-like substances. Some of them are used in medidnal preparations. Unsaturated fatty acids (oleic, linoleic, linolenic, palmitic and other acids) prevent development of atherosclerosis. They are contained in plant seeds (almond, sunflower, flax and others), and fruits (olives and sea-buckthom). 

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