The Conyza triloba Extracts with High Chlorophyll Content and Free Radical Scavenging Activity Had Anticancer Activity in Cell Lines

Table 7

Effects of plant extracts on benzo[a]pyrene (B[a]P) mutant frequency.

Treatment	Mutant frequency and % of B[a]P^#
	Preexposure*		Coexposure*
	1 mg/mL	5 mg/mL	1 mg/mL	5 mg/mL
B[a]P	9.54 (100)
I	4.44 (46)^a	2.82 (30)^a	4.83 (51)^a	3.88 (41)^a
II	1.95 (20)^a	1.35 (14)^a	2.99 (31)^a	2.40 (25)^a
III	1.83 (19)^a	1.57 (16)^a	3.27 (34)^a	2.28 (24)^a
IV	1.59 (17)^a	1.36 (14)^a	2.80 (29)^a	2.61 (27)^a
V	2.41 (25)^a	2.27 (24)^a	2.92 (31)^a	4.10 (43)^a

#Calculated from mutant colonies (Table 5)/viable colonies. *Plant extracts were incubated with bacteria either 30 minutes before B[a]P (preexposure) or incubated with the bacteria and B[a]P (coexposure). ^aSignificant difference (P < 0.05) from B[a]P.