Modes of handling Oxygen Radical Absorbance Capacity (ORAC) data and reporting values in product labelling

Full text for this resource is not available from the Research Repository.

Stockham, Katherine, Paimin, Rohani, Orbell, John ORCID: 0000-0003-3485-5309, Adorno, Paul and Buddhadasa, Saman (2010) Modes of handling Oxygen Radical Absorbance Capacity (ORAC) data and reporting values in product labelling. Journal of Food Composition and Analysis, 24 (4-5). pp. 686-691. ISSN 0889-1575


Antioxidant measurement assays are widely used and should be chosen based on their being fit for purpose. Likewise, the mode of reporting antioxidant measurements should also be fit for purpose. The Oxygen Radical Absorbance Capacity (ORAC) assay is widely used internationally for measuring the antioxidant capacity of commodities using the peroxyl radical. However, the current mode of reporting of the ORAC values is not obvious, especially for the consumer groups. In this mode, reporting of the ORAC values is the unit of micromoles of vitamin E analogue (VEA), known commercially as Trolox Equivalents per kilogram or per litre (μM T.E./kg or L). Unlike mass units, molar units are not widely used in nutrition information panels (NIP). This paper presents a simple mathematical model for conversion of ORAC values to mass units to facilitate better understanding of the antioxidant capacity quoted. Additionally, mass values are in keeping with current labelling practice in Australia. Unless legislation is passed for the regulation of ORAC data use in labelling and product marketing, mass units should be considered as a mode of reporting, limiting sensationalism of antioxidant capacity and keeping with current labelling practice.

Dimensions Badge

Altmetric Badge

Item type Article
DOI 10.1016/j.jfca.2010.11.007
Official URL
Subjects Historical > Faculty/School/Research Centre/Department > School of Engineering and Science
Historical > FOR Classification > 0908 Food Sciences
Historical > SEO Classification > 8601 Processed Food Products and Beverages (excl. Dairy Products)
Keywords ResPubID20706,ResPubID23062, ORAC, antioxidants, mass units, food labelling, nutrition information panel, Trolox, vitamin e analogue, ascorbic acid
Citations in Scopus 10 - View on Scopus
Download/View statistics View download statistics for this item

Search Google Scholar

Repository staff login