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. 2021 Sep 30;10(10):2334. doi: 10.3390/foods10102334

Table 3.

Antioxidant recovery determinations by spectrophotometry.

Added Concentration (μg/mL) Recovery (%)
Total polyphenols 25 99
75 96
100 104
Total flavonoids 8 88
15 113
Total proanthocyanidins 2 107
FRAP assay 25 120
50 107