Ethyl Acetate Fraction of Hemerocallis citrina Baroni Decreases Tert-butyl Hydroperoxide-Induced Oxidative Stress Damage in BRL-3A Cells

Table 2

Phenolic content, flavonoid content, and antioxidant activities of various extract fractions of Hemerocallis citrina Baroni.

Sample	Phenolic content (mg g^−1)	Flavonoid content (mg g^−1)	IC50 (μg mL^−1)		Reducing power
			DPPH	ABTS
HCNH	14.55 ± 0.001	18.90 ± 0.084	5596 ± 3.748	1819 ± 0.182	78.94 ± 0.004
HCEA	102.86 ± 0.004	196.58 ± 0.015	20.82 ± 1.318	7.226 ± 0.009	4.497 ± 0.045
HCNB	63.31 ± 0.007	56.69 ± 0.004	115.4 ± 0.051	10.35 ± 0.032	8.025 ± 0.019
HCW	18.34 ± 0.095	53.23 ± 0.007	796 ± 0.215	80.58 ± 0.065	16.21 ± 0.015
Vc	nd	nd	3.12 ± 0.497	3.779 ± 0.003	0.9065 ± 0.148
BHT	nd	nd	nd	nd	2.954 ± 0.089

H. citrina Baroni extract fractions: HCNH: n-hexane; HCEA: ethyl acetate; HCNB: n-butanol; HCW: water; DPPH: 2,2-diphenyl-1-picrylhydrazyl; ABTS, 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid); nd: not detected.