γ-Oryzanol
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Other names
gamma-Oryzanol; gamma-Orizanol
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Identifiers | |
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3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.110.371 |
PubChem CID
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UNII |
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CompTox Dashboard (EPA)
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Properties | |
Mixture | |
Appearance | White to off-white solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
γ-Oryzanol is a mixture of lipids derived from rice (Oryza sativa).[1] γ-Oryzanol occurs mainly in the fat fraction of rice bran and rice bran oil.
Originally thought to be a single chemical compound,[2] it is now known to be a mixture of ferulic acid esters of phytosterols and triterpenoids, particularly cycloartenyl ferulate, 24-methylenecycloartanyl ferulate, and campesteryl ferulate,[3] which together account for 80% of γ-oryzanol.[4]
Composition[]
Names | Chemical structure | Molecular formula | CAS number |
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Cycloartenyl ferulate Oryzanol A |
C40H58O4 | 21238-33-5 | |
24-Methylenecycloartanyl ferulate Oryzanol C |
C41H60O4 | 469-36-3 | |
Campesteryl ferulate | C38H56O4 | 20972-07-0 |
Minor constituents include Δ7-stigmastenyl ferulate, stigmasteryl ferulate, Δ7-campestenyl ferulate, Δ7-sitostenyl ferulate, sitosteryl ferulate, compestanyl ferulate, and sitostanyl ferulate.[3]
Uses[]
γ-Oryzanol has been used in Japan for menopausal symptoms, mild anxiety, stomach upset, and high cholesterol.[5] However, there is no meaningful evidence supporting its efficacy for these purposes.[5] In the United States, it is sold as a sports supplement, but existing research does not support the belief that it has any ergogenic or testosterone-raising effects.[6]
References[]
- ^ R. M. Saunders (1985). "Rice bran: Composition and potential food uses". Food Reviews International. 1 (3): 465–495. doi:10.1080/87559128509540780.
- ^ Kaimal, T. B. N. (1999). "γ-Oryzanol from ricebran oil". J Oil Technol Assoc India. 31: 83–93.
- ^ a b Zhimin Xu and J. Samuel Godber (1999). "Purification and Identification of Components of γ-Oryzanol in Rice Bran Oil". J. Agric. Food Chem. 47 (7): 2724–2728. doi:10.1021/jf981175j. PMID 10552553.
- ^ Xu Zhimin, Godber J S & Xu Z. "Antioxidant activities of major components of gamma-oryzanol from rice bran using a linolenic acid model". J Am Oil Chem Soc. 78 (2001): 465–469.
- ^ a b "Gamma Oryzinol". Winchester Hospital.
- ^ Melvin Williams (2006). "Dietary Supplements and Sports Performance: Herbals". Journal of the International Society of Sports Nutrition. 3 (1): 1–6. doi:10.1186/1550-2783-3-1-1. PMC 2129138. PMID 18500959.
- Lipids