Gamma Oryzanol

Studies Conducted On

Anti-oxidant properties of Gamma-Oryzanol

Year of Study: 2010

Title of the Study: Gamma-oryzanol rich fraction regulates the expression of antioxidant and oxidative stress related genes in stressed rat’s liver / Maznah Ismail, Ghanya Al-Naqeeb, Wan Abd Aziz bin Mamat, Zalinah Ahmad, /Nutrition & Metabolism

From the findings of this study it was concluded that Gamma-oryzanol rich fraction showed potential antioxidant activity greater than OR in the regulation of antioxidants and oxidative stress gene markers.

Link: https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/1743-7075-7-23

Year of Study: 2005

Title of the Study: Antioxidant activity of gamma-oryzanol: mechanism of action and its effect on oxidative stability of pharmaceutical oils / Claudia Juliano Massimo Cossu Maria Cristina Alamanni Luisella Piu / International Journal of Pharmaceutics

The results of this study demonstrate that gamma-oryzanol is an organic radical scavenger able to prevent AMVN- triggered lipoperoxidation.

Link: https://pubmed.ncbi.nlm.nih.gov/16005170/

Year of Study: 2003

Title of the Study: Potential functionality and digestibility of oryzanol as determined using in vitro cell culture models / Chih-chun Jean Huang / LSU Doctoral Dissertations

The results of this study showed that, in some situations, γ-oryzanol could present a more effective antioxidant activity than α-tocopherol, in terms of reducing tert-butyl hydroperoxide promoted oxidative damage on cellular mitochondrial activity.

Link: https://digitalcommons.lsu.edu/gradschool_dissertations/261/

Year of Study: 2001

Title of the Study: Antioxidant activity of tocopherols, tocotrienols, and gamma-oryzanol components from rice bran against cholesterol oxidation accelerated by 2,2'-azobis(2- methylpropionamidine) dihydrochloride / Z Xu, N Hua, J S Godber /Journal of Agricultural and Food Chemistry

The results of this study demonstrated that Gamma Oryzanol components had higher antioxidant activity than that of any of the four vitamin E components.

Link: https://pubmed.ncbi.nlm.nih.gov/11308370/

Year of Study: 2001

Title of the Study: Antioxidant activities of major components of γ-oryzanol from rice bran using a linoleic acid model /Zhimin Xu and J. Samuel Godber / Journal of the American Oil Chemists' Society

In this study, major components of Gamma Oryzanol demonstrated significant antioxidant activity.

Link: https://link.springer.com/article/10.1007%2Fs11746-001-0320-1

Year of Study: 1991

Title of the Study: Preventive effect of antioxidants on lipid peroxidation in the retina / T Hiramitsu, D Armstrong / Ophthalmic Research

This study indicated that Gamma Oryzanol was more than four times as effective at stopping tissue oxidation as vitamin E.

Link: https://pubmed.ncbi.nlm.nih.gov/1945290/