Table 1. Different concentrations of chitosan (CS) solution used in this study.

Group	CS concentration [g/L of 1% (V/V) acetic acid]
Saline (control)	0
Ca(OH)2-saline	0
Ca(OH)2-25% CS	0.5 (25 V/V, %)
Ca(OH)2-50% CS	1.0 (50 V/V, %)
Ca(OH)2-100% CS	2.0 (100 V/V, %)