NationMaster - Encyclopedia: Linseed oil

Linseed oil, also known as flax seed oil, is a yellowish drying oil derived from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae). It is obtained by pressing, followed by an optional stage of solvent extraction. Cold-pressed oil obtained without solvent extraction is marketed as flaxseed oil. Image File history File links Question_book-3. ... Image File history File linksMetadata Size of this preview: 800 Ã— 600 pixelsFull resolution (2048 Ã— 1536 pixel, file size: 1. ... Image File history File linksMetadata Size of this preview: 800 Ã— 600 pixelsFull resolution (2048 Ã— 1536 pixel, file size: 1. ... A drying oil is an oil which hardens to a tough, solid film after a period of exposure to air. ... For other uses, see Flax (disambiguation). ... Binomial name Linum usitatissimum L. Linnaeus, 17?? Common flax (also known as linseed) is a member of the Linaceae family, which includes about 150 plant species widely distributed around the world. ... The Linaceae are herbaceous or rarely woody plants, large trees in the tropics. ... In chemistry, liquid-liquid extraction (or more briefly, solvent extraction) is a useful method to separate components (compounds) of a mixture. ... In chemistry, liquid-liquid extraction (or more briefly, solvent extraction) is a useful method to separate components (compounds) of a mixture. ...

Uses

Paint binder

Linseed oil is the most commonly used carrier in oil paint. It can also be used as a painting medium, making oil paints more fluid, transparent and glossy. It is available in varieties such as Cold Pressed, alkali refined, sun Bleached, sun thickened, and polymerised (stand oil). View of Delft in oil paint, by Johannes Vermeer. ...

Wood finish

When used as a wood finish, linseed oil does not cover the surface as varnish does, but soaks into the (visible and microscopic) pores, leaving a shiny but not glossy surface that shows off the grain. Wood treated with linseed oil not only is resistant to denting, and scratches are easily repaired, but the wood and oil surface is not as hard as a modern varnish, and it slowly absorbs moisture if allowed to stay wet. Soft wood benefits from the protection from denting but requires more applications and even more drying time than harder wood does, if the grain is to be completely filled. The oil penetrates deeply and fills the grain, because it dries slowly and shrinks little or not at all on hardening. Like other oil finishes Garden furniture treated with linseed oil may develop Mildew. Linseed oil is not completely denatured, so it can encourage rather than discourage mildew growth. Oiled wood is yellowish and darkens with age. Wood finishing refers to the process of embellishing and/or protecting the surface. ... Varnish is a transparent, hard, protective finish or film primarily used in wood finishing but also for other materials. ... The oldest surviving examples of garden furniture were found in the gardens of Pompeii. ... Mildew is a grey, mold-like growth caused by one of two different types of micro-organisms. ...

It is a traditional finish for gun stocks, however a very fine finish may require months to obtain. Several coats of linseed oil is the traditional protective coating for the willow wood of cricket bats. Species About 350, including: Salix acutifolia - Violet Willow Salix alaxensis - Alaska Willow Salix alba - White Willow Salix alpina - Alpine Willow Salix amygdaloides - Peachleaf Willow Salix arbuscula - Mountain Willow Salix arbusculoides - Littletree Willow Salix arctica - Arctic Willow Salix atrocinerea Salix aurita - Eared Willow Salix babylonica - Peking Willow Salix bakko Salix barrattiana... This article is about the sport. ...

Fire departments treat the wood handles of hand tools that have metal implements (axes, plaster hooks etc.) on them with Linseed oil as it does not carry electricity, while commercial wood sealants like varnishes can transmit electricity.

Nutritional supplement

If it is very fresh, refrigerated and unprocessed, linseed oil is suitable for human consumption, and is used as a nutritional supplement. It is rich in omega-3 fatty acids, especially alpha-linolenic acid, which appears to be beneficial for preventing heart disease, inflammatory bowel disease, arthritis and a variety of other health conditions.^{[citation needed]} Regular flaxseed oil contains between 52 and 63 % alpha linolenic acid (C18:3 n-3). Plant breeders have developed flaxseed with high alpha linolenic acid content (70 %)^[1] and very low alpha linoleic acid content (< 3%).^[2] Flaxseed also contains a group of chemicals called lignans that may play a role in the prevention of cancer.^[3] In the United States, a dietary supplement is defined under the Dietary Supplement Health and Education Act of 1994 as a product taken by the mouth that contains a dietary ingredient that is intended as a supplement to the diet. ... Omega-3 fatty acids are a family of polyunsaturated fatty acids which have in common a carbon-carbon double bond in the Ï‰-3 position. ... Alpha-linolenic acid (ALA) is a polyunsaturated omega-3 fatty acid. ... A lignan is a chemical compound found in plants. ... Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (where cancer cells are transported through the bloodstream or lymphatic system). ...

Nutritional issues

"Flax seed oil is very easily oxidized, which means that contact with oxygen will gradually break down the oil and can cause it to become rancid and give off an unpleasant smell."[1]

"It shouldn't smell funky ... Flax has a nutty flavor and smell. It should smell good... flaxseed oil, which must be refrigerated, has a relatively short shelf life of a few weeks. If the oil smells rancid, toss it. Flax seed oil should only be used cold - it can't be heated like olive oil."[2]

Flax seed oil has anti-oxidant nutritional properties, which are considered to be anti-carcinogenic. However, unless it is processed and stored with care, and consumed fresh, it is prone to readily turn rancid. Rancid oils contribute to the formation of free radicals and are carcinogenic.[3][4][5]

"Raw flaxseeds contain cyanogenic glycosides, which are converted in the body to thiocynanates (also breakdown products of glucosinolates in cruciferous vegetables). Thiocyanates can inhibit the uptake of iodine by the thyroid, but this is not generally a problem when iodine is plentiful in the food supply. However, under conditions of chronic low iodine intake, large amounts of raw flaxseeds could contribute the goiter. Cooking flaxseeds destroys the cyanogenic glycosides."[6]

Nutrient content

Nutrition information from a typical commercially available flax seed oil^{[citation needed]}. It has a very high concentration of phytoestrogens. Palmitic acid, or hexadecanoic acid in IUPAC nomenclature, is one of the most common saturated fatty acids found in animals and plants. ... Stearic acid (IUPAC systematic name: octadecanoic acid) is one of the useful types of saturated fatty acids that comes from many animal and vegetable fats and oils. ... Arachidic acid also called eicosanoic acid is a saturated fatty acid found in peanut oil. ... Oleic acid is a monounsaturated omega-9 fatty acid found in various animal and vegetable sources. ... Linoleic acid (LA) is an unsaturated omega-6 fatty acid. ... Chemical structure of alpha-linolenic acid Linolenic acid is an 18-carbon polyunsaturated fatty acid with three double bonds. ... Phytoestrogens are chemicals produced by plants that act like estrogens in animal/+human cells and bodies. ...

In chemistry, especially biochemistry, a fatty acid is a carboxylic acid often with a long unbranched aliphatic tail (chain), which is either saturated or unsaturated. ... Omega-3 fatty acids are polyunsaturated fatty acids found in certain fish tissues, and in vegetable sources such as flax seeds, walnuts, and canola oil. ... Omega-6 fatty acids are fatty acids where the term omega-6 signifies that the first double bond in the carbon backbone of the fatty acid, counting from the end opposite the acid group, occurs in the sixth carbon-carbon bond. ... Omega-9 fatty acids are a class of unsaturated fatty acids which have a C=C double bond in the Ï‰-9 position. ...

Additional uses

Fodder growing from barley In agriculture, fodder or animal feed is any foodstuff that is used specifically to feed domesticated livestock, including cattle, goats, sheep, horses, chickens and pigs. ... PuTTY is a free software SSH, Telnet, rlogin, and raw TCP client. ... Caulking - Wikipedia /**/ @import /w/skins-1. ... Brake linings are the consumable surfaces in braking systems, especially those used in vehicles. ... A linoleum kitchen floor Linoleum is a floor covering made from solidified linseed oil (linoxyn) in combination with wood flour or cork dust over a burlap or canvas backing. ... An earthen floor is a floor made of dirt, raw earth, or other unworked ground materials. ... Renewal of the surface coating of an adobe wall in Chamisal, New Mexico Adobe is a natural building material composed of sand, sandy clay and straw or other organic materials, which is shaped into bricks using wooden frames and dried in the sun. ... For other uses, see Textile (disambiguation). ... For other uses, see Bicycle (disambiguation). ... For people named Leather, see Leather (surname). ... Compo is a mouldable resin worked either by hand or more usually pressed into moulds to produce decorative work. ... Species About 350, including: Salix acutifolia - Violet Willow Salix alaxensis - Alaska Willow Salix alba - White Willow Salix alpina - Alpine Willow Salix amygdaloides - Peachleaf Willow Salix arbuscula - Mountain Willow Salix arbusculoides - Littletree Willow Salix arctica - Arctic Willow Salix atrocinerea Salix aurita - Eared Willow Salix babylonica - Peking Willow Salix bakko Salix barrattiana... For other uses, see Wood (disambiguation). ... A cricket bat is used by batsmen in the sport of cricket. ... This article is about the sport. ...

Boiled linseed oil

Boiled linseed oil is used as a paint binder or as a wood finish on its own. Heating the oil makes it polymerize and oxidize, effectively making it thicker and shortening the drying time. Today most products labeled as "boiled linseed oil" are a combination of raw linseed oil, petroleum-based solvent and metallic dryers. The use of metallic dryers makes boiled linseed oil inedible. There are some products available that contain only heat-treated linseed oil, without exposure to oxygen. Heat treated linseed oil is thicker and dries very slowly. These are usually labeled as "polymerized" or "stand" oils, though some may still be labeled as boiled. For other uses, see Paint (disambiguation). ... For other uses, see Wood (disambiguation). ...

Spontaneous combustion

Rags dampened with boiled linseed oil are a fire hazard, because they provide a large surface area for oxidation of the oil. The oxidation is an exothermic reaction which accelerates as the rags get hotter. Such rags should be washed, soaked with water or incinerated to avoid unexpected spontaneous combustion. In thermodynamics, the word exothermic describes a process or reaction that releases energy in the form of heat. ... This article is about Thermal runaway. ... Spontaneous combustion is the self-ignition of a material. ...

References

Categories: Articles lacking sources from November 2006 | All articles lacking sources | All articles with unsourced statements | Articles with unsourced statements since June 2007 | Articles with unsourced statements since February 2007 | Vegetable oils | Dietary supplements | Art materials | Painting materials | Woodworking | Oils Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 268th day of the year (269th in leap years) in the Gregorian calendar. ... Omega-3 fatty acids are polyunsaturated fatty acids found in certain fish tissues, and in vegetable sources such as flax seeds, walnuts, and canola oil. ... Also see: 2002 (number). ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 316th day of the year (317th in leap years) in the Gregorian calendar. ... A dietary supplement is intended to supply nutrients, (vitamins, minerals, fatty acids or amino acids) that are missing or not consumed in sufficient quantity in a persons diet. ... An essential amino acid or indispensable amino acid is an amino acid that cannot be synthesized de novo by the organism (usually referring to humans), and therefore must be supplied in the diet. ... Many supplements come in capsule form. ... A variety of energy drinks are available; the skinny bullet can shape is popular. ... An energy bar is a dietary supplement often consumed by athletes or other physically active people to maintain their caloric needs in light of their strenuous physical activity. ... Essential fatty acids, or EFAs, are fatty acids that cannot be constructed within an organism from other components (generally all references are to humans) by any known chemical pathways; and therefore must be obtained from the diet. ... Herbalism is a traditional medicinal or folk medicine practice based on the use of plants and plant extracts. ... mccall is cooool Dietary minerals are the chemical elements required by living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen which are present in common organic molecules. ... Probiotics are dietary supplements containing potentially beneficial bacteria or yeasts. ... Retinol (Vitamin A) For the record label, see Vitamin Records A vitamin is an organic compound required in tiny amounts for essential metabolic reactions in a living organism. ... Whole food supplements comprise a unique class within the food supplement industry. ... Retinol (Vitamin A) For the record label, see Vitamin Records A vitamin is an organic compound required in tiny amounts for essential metabolic reactions in a living organism. ... mccall is cooool Dietary minerals are the chemical elements required by living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen which are present in common organic molecules. ... The structure of retinol, the most common dietary form of vitamin A Vitamin A is an essential human nutrient. ... The B vitamins are eight water-soluble vitamins that play important roles in cell metabolism. ... For the similarly spelled nucleic acid, see Thymine Thiamine or thiamin, also known as vitamin B1, is one of the B vitamins. ... Riboflavin (E101), also known as vitamin B2, is an easily absorbed micronutrient with a key role in maintaining health in animals. ... Niacin, also known as nicotinic acid or vitamin B3, is a water-soluble vitamin whose derivatives such as NADH play essential roles in energy metabolism in the living cell. ... Pantothenic acid, also called vitamin B5 (a B vitamin), is a water-soluble vitamin required to sustain life (essential nutrient). ... Pyridoxine Pyridoxal phosphate Vitamin B6 is a water-soluble vitamin. ... Vitamin H redirects here. ... Folic acid and folate (the anion form) are forms of the water-soluble Vitamin B9. ... Cyanocobalamin is a compound that is metabolized to a vitamin in the B complex commonly known as vitamin B12 (or B12 for short). ... This article is about the nutrient. ... Vitamin D is a fat soluble vitamin that contributes to the maintenance of normal levels of calcium and phosphorus in the bloodstream. ... Tocopherol, or Vitamin E, is a fat-soluble vitamin in eight forms that is an important antioxidant. ... Vitamin K1 (phylloquinone). ... For other uses, see Calcium (disambiguation). ... Choline is an organic compound, classified as an essential nutrient and usually grouped within the Vitamin B complex. ... General Name, symbol, number chlorine, Cl, 17 Chemical series halogens Group, period, block 17, 3, p Appearance yellowish green Standard atomic weight 35. ... REDIRECT [[ Insert text]]EWWWWWWWWWWWWW YO General Name, symbol, number chromium, Cr, 24 Chemical series transition metals Group, period, block 6, 4, d Appearance silvery metallic Standard atomic weight 51. ... For other uses, see Cobalt (disambiguation). ... For other uses, see Copper (disambiguation). ... Distinguished from fluorene and fluorone. ... For other uses, see Iodine (disambiguation). ... For other uses, see Iron (disambiguation). ... General Name, symbol, number magnesium, Mg, 12 Chemical series alkaline earth metals Group, period, block 2, 3, s Appearance silvery white solid at room temp Standard atomic weight 24. ... General Name, symbol, number manganese, Mn, 25 Chemical series transition metals Group, period, block 7, 4, d Appearance silvery metallic Standard atomic weight 54. ... General Name, Symbol, Number molybdenum, Mo, 42 Chemical series transition metals Group, Period, Block 6, 5, d Appearance gray metallic Standard atomic weight 95. ... General Name, symbol, number phosphorus, P, 15 Chemical series nonmetals Group, period, block 15, 3, p Appearance waxy white/ red/ black/ colorless Standard atomic weight 30. ... General Name, symbol, number potassium, K, 19 Chemical series alkali metals Group, period, block 1, 4, s Appearance silvery white Standard atomic weight 39. ... For other uses, see Selenium (disambiguation). ... For sodium in the diet, see Edible salt. ... This article is about the chemical element. ... General Name, symbol, number zinc, Zn, 30 Chemical series transition metals Group, period, block 12, 4, d Appearance bluish pale gray Standard atomic weight 65. ... This article or section contains information that has not been verified and thus might not be reliable. ... Chondroitin sulfate (CS) is a glycosaminoglycan (GAG) found in connective tissue and the nervous system, normally attached to a protein core. ... Capsules of Cod Liver Oil Cod liver oil, as its name suggests, is an oil extracted from cod livers. ... Copper gluconate is the copper salt of D-gluconic acid. ... For the use of creatine to enhance athletic performance, please see Creatine supplements. ... Dietary fibers are the indigestible portion of plant foods that move food through the digestive system, absorbing water and making defecation easier. ... Elemental calcium is a term that is in common use in the context of dietary supplements. ... Ephedra in medicine. ... Fish Oil is oil derived from fishes. ... Folic acid and folate (the anion form) are forms of the water-soluble Vitamin B9. ... Not to be confused with ginger. ... Glucosamine (C6H13NO5) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. ... Glutamine is one of the 20 amino acids encoded by the standard genetic code. ... Iron supplements are supplements that can be prescribed by a doctor for a medical reason. ... Binomial name Thunb. ... Krill oil is made from krill. ... Species L. acidophilus L. brevis L. delbrueckii subsp. ... Binomial name (Curtis) P. Karst LÃngzhÄ« (traditional Chinese: éˆèŠ; simplified Chinese: çµèŠ; Japanese: reishi; Korean: yeongji, hangul: ì˜ì§€) is the name for one form of the mushroom Ganoderma lucidum, and its close relative Ganoderma tsugae, which grows in the northern Eastern Hemlock forests. ... Dried grain red yeast rice Red yeast rice (Chinese: ç´…éº´ç±³, çº¢æ›²ç±³; pinyin: hÃ³ng; lit. ... Royal jelly is a honey bee secretion that is used in the nutrition of the larvae. ... Saw palmetto extract is an extract of the fruit of Serenoa repens. ... Species Spirulina is the common name for human and animal food supplements produced primarily from two species of cyanobacteria: Arthrospira platensis, and Arthrospira maxima. ... Taurine, or 2-aminoethanesulfonic acid, is an organic acid. ... Extracting wheatgrass juice with a manual juicing machine. ... Species Lycium barbarum L. Lycium chinense Mill. ... Yohimbine, also known under the outdated names quebrachin, aphrodin, corynine, yohimvetol and hydroergotocin, is the principal alkaloid of the bark of the West-African tree Pausinystalia yohimbe Pierre (formerly Corynanthe yohimbe), family Rubiaceae (Madder family). ... Zinc gluconate is the salt of gluconate and zinc II. It is an ionic compound consisting of two moles of gluconate for each mole of zinc. ... The Codex Alimentarius (Latin for food code or food book) is a collection of internationally recognized standards, codes of practice, guidelines and other recommendations relating to foods, food production and food safety under the aegis of consumer protection. ... Enzyte is an herbal nutritional supplement manufactured by Berkeley Premium Nutraceuticals of Cincinnati, Ohio. ... Metabolife is an American corporation which manufactures dietary supplements. ... Hadacol was a patent medicine marketed as a vitamin supplement. ... Nutraceutical is a portmanteau of [Nutrition] and [pharmaceutical] and refers to foods thought to have a beneficial effect on human health. ... A multivitamin is any preparation containing more than a single vitamin. ...

Contents

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