Table 5.

Cytotoxicity of brine shrimps observed at different concentrations of selected plant extracts and their LC₅₀ values.

Plants	Solvents used for extracts	Percentage mortality at different doses					LC50 (ppm)	95 % Confidence Interval
		62	125	250	500	1000
H. crispum	Methanol	86.66	93.33	100.0	100.0	100.0	8.4980	2.7070 – 26.683
	Ethanol	73.33	86.66	86.66	100.0	100.0	8.3640	2.2820 – 30.654
	Ethyl acetate	43.33	50.00	80.00	96.66	100.0	93.162	59.329 – 146.28
	Chloroform	46.66	63.33	80.00	96.66	100.0	78.107	47.551 – 128.29
	N. hexane	80.00	86.66	90.00	96.66	100.0	10.817	3.5780 – 32.703
G. hispida	Methanol	40.00	70.00	80.00	90.00	100.0	75.883	42.196 – 136.46
	Ethanol	23.33	50.00	76.66	86.66	100.0	129.86	82.146 – 205.30
	Ethyl acetate	23.33	33.33	63.33	70.00	96.66	178.16	112.97 – 280.97
	Chloroform	30.00	50.00	76.66	83.33	100.0	119.71	70.435 – 203.47
	N. hexane	63.33	83.33	100.0	100.0	100.0	42.380	23.657 – 75.923

LC₅₀: Lethal concentratin which causes death of fifty percent (one half) of group of tested animals.