Oxygen Radical Antioxidant Capacity (ORAC) Assay Kit (Fluorometric Method)

Cat. No.: O1515835

GRADE & PURITY BioReagent

Overview

Oxygen Radical Absorbance Capacity (ORAC) is a classic method for detecting the antioxidant capacity of biomolecules in various samples. The ORAC method offers distinct advantages for evaluating antioxidant performance, including high specificity, excellent sensitivity, a broad detection range, and suitability for high-throughput screening of antioxidant activity. Consequently, it is increasingly applied in the assessment of natural product antioxidant extracts and is widely adopted by the food and functional food industries as a key evaluation standard for functional foods. The detection principle of this kit is as follows: Sodium fluorescein is used as the fluorescent probe, and the azo compound AAPH serves as the source of peroxyl radicals. The radicals degrade the fluorescent probe, causing a change in fluorescence intensity. The extent of this change reflects the degree of radical-induced damage. In the presence of antioxidants, they can inhibit the fluorescence change caused by the radicals. The degree of inhibition reflects their antioxidant capacity against the radicals.

Storage and Shipping

Storage

Protected from light,Store at -20°C

Shipped In

Ice chest + Ice pads

Stability And Storage

Store at -20℃ for 12 months. Store in the dark.