Table 2.

The mortality rate of G. intestinalis cysts in the presence of different concentrations of P. Viridicatum chitosan and given different exposure times

Exposure time/concentration	50 μg/ml	100 μg/ml	200 μg/ml	400 μg/ml	P value	Control group
10 min	6	9	15	19	0.175	7
30 min	23	29	39	49	0.016	9
60 min	38	49	61	69	0.005	9
180 min	56	69	81	100	0.006	8
P value	0.108	0.053	0.02	0.012	–	–