. 2021 Feb 5;30(2):287–297. doi: 10.1007/s10068-020-00868-7

Table 2.

Total phenolic and flavonoid content and antioxidant capacity of Rhodiola rosea L. rhizome and its identified compounds

	Total phenolic content (mg gallic acid equiv./g)	Total flavonoid content (mg catechin equiv./g)	Antioxidant capacity (mg vitamin C equiv./g)
	Total phenolic content (mg gallic acid equiv./g)	Total flavonoid content (mg catechin equiv./g)	ABTS^a	DPPH^b
Rhodiola rosea L. rhizome	7.94 ± 0.06^c	0.11 ± 0.01	15.55 ± 7.47	14.96 ± 0.13
Salidroside	335.64 ± 11.18	–^d	394.71 ± 8.99	–
Tyrosol	814.27 ± 19.42	–	914.5 ± 7.37	–
Rosarin	–	–	–	–
Rosavin	–	–	–	–
Rosin	–	–	–	–

^a2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging assay

^b2,2-Diphenyl-1-picrylhydrazyl radical scavenging assay

^cData are expressed as means ± standard deviations (n = 3)

^dNot detected