Linseed oil

Linseed 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. It is suitable for human consumption (though not recommended for cooking) and is used as a nutritional supplement which is high in omega-3 fatty acids, especially alpha linolenic acid, and relatively low in omega-6 fatty acids, allowing it to be used to lower the ratio of omega-6 to omega-3 oils in the diet, which may have health benefits.

Related Topics:
Oil - Flax - Linaceae - Solvent extraction - Omega-3 fatty acids - Linolenic acid - Omega-6 fatty acids - Ratio of omega-6 to omega-3

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Boiled linseed oil was used as a paint binder or as a wood finish on its own. Heating the oil makes it polymerize or oxidise more readily. However, today, metallic dryers are used instead of heat. The use of metallic dryers makes boiled linseed oil inedible.

Related Topics:
Paint - Wood

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Nutrient content of flax seed oil

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Approximate per 100 grams (3½ ounces)

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• Food energy 450 calories (1,880 kilojoules)
• Fat 41.0 grams
• Total dietary fibre 28.0 grams
• Protein 20.0 grams

Its uses include:

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• Animal feeds
• Putty
• Sealants
• Caulking compounds
• Brake linings
• Linoleum
• Textiles
• Foundry products
• Leather treatment
• Polishes, varnishes and oil paints
• Animal care products
• Wood preservation
• Synthetic resins
• Oil painting medium

The linoleic acid in linseed oil is used as a dietary supplement.

Related Topics:
Linoleic acid - Dietary supplement

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Linseed oil has a special cultural place in cricket playing countries as treatment for the raw willow wood used to make cricket bats.

Related Topics:
Cricket - Cricket bats

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Safety Note: Rags soaked in linseed oil can self-ignite if stored in a confined space. They should be washed with water and disposed of carefully.

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