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Wheat germ oil is extracted from the germ of the wheat kernel, which makes up 2-3% by weight of whole grain wheat. [1] Wheat germ may yield 8-14% of oil in its total content. [1]
In a reference amount of 100 grams (3.5 oz), wheat germ oil supplies 884 calories. [2] Wheat germ oil has a high content of vitamin E (149 mg/100g), [2] the content of which diminishes substantially due to oxidation by extrusion treatment, oven-roasting or storage for 6 weeks. [1] As a cooking oil, it is strongly flavored and easily perishable.[ citation needed]
Wheat germ oil contains the following fatty acids: [1] [2]
Component | g/100g |
---|---|
Linoleic acid ( omega-6) | 55 |
Palmitic acid | 17 |
Oleic acid | 15 |
Linolenic acid ( omega-3) | 7 |
Wheat germ oil is rich in phytosterols, especially campesterol and beta-sitosterol, which remain stable in content during long-term storage. [1] It also contains octacosanol, a 28-carbon long-chain sterol found in vegetable waxes. [1]