Supplementary Data for: Direct EPR-DPPH Protocol for Complex Matrices: Russian Insights into African Consumer Products

This dataset contains the raw, unprocessed Electron Paramagnetic Resonance (EPR) spectral spin values and the complete supplementary calculation data for the comparative antioxidant assessment of six commercially available Russian products: American coffee, green tea, lemon, orange, mandarin, and an energy drink. The data support the validation of a direct, matrix-tolerant EPR-DPPH assay that bypasses the optical interference often encountered in colorimetric assessments of deeply pigmented beverages. Included are the raw double-integral values for the ascorbic acid calibration curve (R² = 0.998), the sample reaction kinetics at 7 minutes, and the final dilution-corrected antioxidant activity values (mmol AAE/L). This data is provided to ensure full transparency, enhance reproducibility, and encourage the application of this direct EPR protocol to other complex food matrices, particularly indigenous African functional foods.