Rice germ oil

Authors: Prof. Dr. med. Peter Altmeyer, Prof. Dr. med. Martina Bacharach-Buhles

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Last updated on: 29.10.2020

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Synonym(s)

rice bran oil; Rice bran oil; rice germ oil; Rice oil

Definition
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Oil (Rice Bran Oil) obtained from the rice plant (oryza sativa), which is used as a foodstuff but also in the cosmetic industry. Rice bran oil is obtained from rice bran, which consists of the pericarp, seed coat, aleurone layer and embryo of the rice grain and is obtained when the brown raw rice is hulled (polished). Depending on the variety, the bran contains approx. 16-32 % oil, which is obtained by solvent extraction and refining. While native pressed rice germ oil is yellow-brownish and has a characteristic odor, the refined rice germ oil we offer as cosmetic or edible oil is usually light yellow to clear and almost odorless. Very different qualities are offered on the market, which clearly differ in the processing steps and their contents of gamma-oryzanol (a mixture of phytosterols esterified with the antioxidant ferulic acid), phytosterols, lecithins and tocopherols. Compared to the virgin oil, completely refined cosmetic rice germ oil usually contains only approx. 0.5-1 % gamma-oryzanol in absolute terms, 66 % of the previously present tocopherols, no phospholipids (lecithins) any more but still 95 % of the originally contained phytosterols. Rice germ oil is used in the cosmetic industry in varying degrees. In terms of skin feel it is a rather light, slightly greasing oil which gives emulsions a pleasant "moist" and rather low greasing character.

Incoming links (1)

Oryzanol (inci);

Outgoing links (1)

Emulsions;