BQC CUPRAC (Cupric Reducing Antioxidant Capacity) Assay Kit is a quick and very simple test for the direct measurement total antioxidant capacity (TAC) in a wide variety of samples.

The BQC CUPRAC TAC Assay Kit is based on the reduction of Cu (II) to Cu (I) by antioxidants. The CUPRAC reagent is a Cu (II)-neocuproine complex that is reduced to Cu (I)- neocuproine chromophore (λmax=450 nm) in the presence of antioxidants (AOX). Therefore, the absorbance measured at 450 nm depends linearly on the antioxidant concentration in the sample. The synthetic antioxidant Trolox (included in the kit) is used to standardize the sample TAC relative to Trolox (Trolox Equivalents Antioxidant Capacity, TEAC).

Select your protocol when ordering:

  • KF01005 A. Analysis of agrifood and biological samples with deproteinization step
  • KF01005 B. Direct analysis of biological samples without the need for a deproteinization step