Antioxidant Potential, DNA Protection, and HPLC-DAD Analysis of Neglected Medicinal Jurinea dolomiaea Roots

Table 3

IC₅₀ values of different antioxidant activities of extract and derived fractions of J. dolomiaea.

Activity	IC50 (μg/mL)
	JDME	JDHE	JDCE	JDEE	JDBE	JDAE	Standard
DPPH scavenging activity	194.7 ± 1.3^b	219.7 ± 2.1^c	147.2 ± 1.4^d	41.1 ± 1.0^f	132.9 ± 2.1^e	305.2 ± 1.9^a	25.1 ± 0.8^g
Hydrogen peroxide scavenging activity	306.7 ± 2.1^b	409.6 ± 1.7^a	190.9 ± 1.6^d	42.2 ± 0.9^g	118.4 ± 1.1^e	231.9 ± 1.3^c	99.0 ± 1.1^f
Hydroxyl radical scavenging activity	133.0 ± 4.6^d	385.0 ± 7.4^a	159.2 ± 4.2^c	47.4 ± 3.3^f	77.0 ± 3.5^e	300.1 ± 5.5^b	10.2 ± 0.7^g
ABTS scavenging activity	93.3 ± 2.2^e	568.0 ± 4.1^a	191.6 ± 1.5^c	46.7 ± 0.6^g	112.5 ± 0.9^d	324.1 ± 2.1^b	55.0 ± 1.0^f
Antilipid per oxidation activity	172.4 ± 3.1^d	2075.0 ± 10.3^a	450.1 ± 3.3^c	54.3 ± 1.6^f	136.2 ± 1.4^e	482.5 ± 2.6^b	31.0 ± 0.6^g
β-Carotene bleaching scavenging activity	114.4 ± 0.8^d	254.0 ± 1.0^b	181.7 ± 2.0^c	82.8 ± 0.6^e	86.5 ± 1.1^e	267.4 ± 1.3^a	35.0 ± 1.8^f
Superoxide radical scavenging activity	215.1 ± 1.6^c	257.3 ± 2.1^b	91.7 ± 1.3^e	106.7 ± 2.5^d	83.8 ± 0.7^f	497.8 ± 4.2^a	41.0 ± 0.6^g
NO^− radical scavenging activity	237.3 ± 1.3^d	781.9 ± 4.3^a	92.0 ± 1.0^f	131.6 ± 1.4^e	388.2 ± 4.1^b	301.3 ± 3.2^c	40.9 ± 2.3^g

Values are expressed as mean ± SD (𝑁=3); means with superscripts with different letters in the rows are significantly (𝑃<0.05) different from each other.