. 2022 May 2;11(5):699. doi: 10.3390/biology11050699

Table 4.

Antioxidant activity of the hydroethanolic extracts of Cynara cardunculus L. var altilis blades collected at different growth stages.

Sample	TBARS (IC₅₀, µg/mL)	OxHLIA (IC₅₀, µg/mL)
Sample	TBARS (IC₅₀, µg/mL)	Δt 60 min	Δt 120 min
B1	5.2 ± 0.1 ^l	92 ± 2 ^b	126 ± 3 ^bc
B2	3.0 ± 0.1 ^m	96 ± 1 ^b	137 ± 2 ^b
B3	1.61 ± 0.03 ^m	99 ± 7 ^b	173 ± 8 ^a
B4	46.7 ± 0.2 ^g	26 ± 1 ^hi	45 ± 1 ⁱ
B5	54 ± 2 ^e	52 ± 1 ^defg	95 ± 2 ^fg
B6	49.4 ± 0.3 ^f	59 ± 2 ^cd	111 ± 1 ^de
B7	43.0 ± 0.3 ^h	44 ± 1 ^g	78 ± 1 ^h
B8	11.6 ± 0.1 ^j	25 ± 1 ⁱ	47.4 ± 0.5 ⁱ
B9	85 ± 1 ^c	58 ± 2 ^cde	101 ± 3 ^efg
B10	38.4 ± 0.1 ^ij	33 ± 1 ^h	58 ± 1 ⁱ
B11	81.4 ± 0.1 ^d	60 ± 3 ^cd	116 ± 6 ^cd
B12	198 ± 1 ^a	49.4 ± 0.3 ^fg	88 ± 6 ^gh
B13	81.9 ± 0.2 ^d	50 ± 3 ^efg	95 ± 7 ^fg
B14	126 ± 3 ^b	54 ± 2 ^cdef	103 ± 3 ^def
B15	6.01 ± 0.04 ^l	62 ± 2 ^c	114 ± 2 ^cde
B16	8.7 ± 0.2 ^k	112 ± 2 ^a	183 ± 6 ^a
Trolox	9.1 ± 0.3	21.2 ± 0.7	41.1 ± 0.8

Results are expressed as mean ± standard deviation. In each column, different letters correspond to significant differences (p < 0.05) between samples. IC₅₀ values correspond to the extract concentration needed to inhibit by 50% the formation of thiobarbituric acid reactive substances (TBARS) and oxidative hemolysis (OxHLIA).