Table 5.

Viability of A549 lung cancer cells by different concentration of lotus leaves flavonoids (LLF) as evaluated by an MTT assay (n = 6)

Concentration (µg/mL)	OD570	Viability inhibition rate (%)
0 (Control)	0.474 ± 0.006	/
125	0.372 ± 0.015*	21.52 ± 2.56
250	0.209 ± 0.008*	55.91 ± 2.63#
500	0.079 ± 0.005**	83.33 ± 0.69##

Values presented are the mean ± standard deviation. Compared with the control group, the difference was significant (^*p < 0.05; ^**p < 0.01); and Compared with the 125 µg/mL LLF group, the difference was significant (^#p < 0.05; ^##p < 0.01)