ORAC Method First Action Paper Published

Posted on: January 24th, 2013 by TonyG No Comments

Manuscript just released entitled “Determination of Total Antioxidant Capacity by Oxygen Radical Absorbance Capacity (ORAC) Using Fluorescein as the Fluorescence Probe: First Action 2012.23” published in JOAC International.

An improved method for the measurement of oxygen radical absorbance capacity (ORAC) was developed and validated using fluorescein as a new fluorescence probe along with the peroxyl radical. The Expert Review Panel (ERP) on Strategic Foods Analytical Methods reviewed the method “Analytical Parameters of the ORACFL Assay” during the AOAC INTERNATIONAL Annual Meeting on October 2, 2012. After evaluating the data available, the ERP agreed that the method meets standard method performance requirements, as articulated by the Stakeholder Panel on Strategic Foods Analytical Methods (1). The ERP granted the method First Action status, applicable to the measure of total antioxidant capacity (AC) of foods. The ERP will monitor the ORACFL’s performance, and after about 2 years, will recommend the method to the Official Methods Board for Final Action if the assay is found to be suitable. This method provides the basis for the data in the ORAC database published on the web (http://oracdatabase.com)  Sufficient data have been derived on foods, making it possible to utilize it in determining dietary intakes of ORACFL and relate intake to health outcomes in several large epidemiology studies.  For more detail see the following link:




Leave a Reply