. 2024 Mar 16;9(12):14442–14454. doi: 10.1021/acsomega.4c00112

Table 2. TPC, TFC, Antioxidant Activity by DPPH, and CUPRAC Assays of Flavonoids Obtained by Different Extraction Methods^a.

extraction method	TPC (mg GAE/g OP-HD)	TFC (mg RE/g OP-HD)	antioxidant activity by DPPH assay (mg TEAC/g OP-HD)	antioxidant activity by CUPRAC assay (mg TEAC/g OP-HD)
SE	4.77 ± 0.65^a	1.87 ± 0.24^b	3.16 ± 0.09^b	7.31 ± 0.59^a
UE	4.67 ± 0.18^a	2.50 ± 0.01^a	3.70 ± 0.07^a	6.93 ± 1.14^a
USE	1.29 ± 0.17^b	1.07 ± 0.34^c	2.07 ± 0.19^c	5.68 ± 0.18^a

GAE: gallic acid equivalent; RE: rutin equivalent antioxidant capacity; and TEAC: Trolox equivalent antioxidant capacity. Means with different letters at each column are significantly different (p < 0.05).

Table 2. TPC, TFC, Antioxidant Activity by DPPH, and CUPRAC Assays of Flavonoids Obtained by Different Extraction Methodsa.

Table 2. TPC, TFC, Antioxidant Activity by DPPH, and CUPRAC Assays of Flavonoids Obtained by Different Extraction Methods^a.