Table 3.

The mortality rate of G. intestinalis cysts in the presence of different concentrations of P. aurantiogriseum 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	7	16	21	0.223	7
30 min	13	19	37	41	0.057	9
60 min	43	50	62	69	0.004	9
180 min	63	75	86	100	0.003	8
P value	0.155	0.101	0.018	0.012	–	–