γ-oryzanol

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γ-oryzanol is a mixture of ferulic acid - esters of phytosterols , mainly Cycloartenylferulat, 24-Methylencycloartanylferulat and Campesterylferulat. These are lipids obtained from rice ( Oryza sativa ). γ-Oryzanol occurs mainly in the fat fraction of rice bran and in rice germ oil .

Of the 44 different phytosterols known today, five can be found in γ-oryzanol, of which cycloartenyl ferulate is in the highest concentration.

Some studies have shown that brown rice and rice bran have antioxidant effects. Among the active substances here is γ-oryzanol. γ-Oryzanol has a cholesterol-lowering effect and is used to improve blood lipid levels.

Individual evidence

  1. ↑ Xu, Z. & Godber, JS (1999): Purification and identification of components of gamma-oryzanol in rice bran Oil. In: J. Agric. Food. Chem. 47 (7): 2724-2728. PMID 10552553 doi : 10.1021 / jf981175j

literature

  • Andreas Miller: Analysis of minor lipids: ferulic acid esters of phytosterols (γ-oryzanol) in rice . Dissertation, Technical University of Munich, 2004, ( PDF; 1.54 MB ).

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