Research Article

Evaluation of Antioxidant Capacity (ABTS and CUPRAC) and Total Phenolic Content (Folin-Ciocalteu) Assays of Selected Fruit, Vegetables, and Spices

Table 5

Slope of calibration curves (from Figure 4) in different solvents at different time points and at different wavelengths.

Assay solvent and time750 nm760 nm

FC-TPC assay in 40% ethanol; 20 min


FC-TPC assay in 40% ethanol; 90 min


FC-TPC assay in Milli-Q water; 20 min


FC-TPC assay in Milli-Q water; 90 min