Table 3.

pH values of formulations A (blank) and B (CSE-loaded) from 24 h to 6 months after preparation at different storage temperatures.

Time (Days)	Formulation
	A			B
	4 °C	25 °C	45 °C	4 °C	25 °C	45 °C
1	5.57 ± 0.01	5.56 ± 0.02	5.57± 0.01	5.44 ± 0.02	5.44 ± 0.02	5.44 ± 0.01
15	5.58 ± 0.02	5.58 ± 0.01	5.57 ± 0.02	5.51 ± 0.01	5.58 ± 0.02	5.54 ± 0.02
30	5.48 ± 0.02	5.49 ± 0.01	5.49 ± 0.01	5.47 ± 0.01	5.43 ± 0.01	5.50 ± 0.01
60	5.57± 0.01	5.59 ± 0.02	5.58 ± 0.01	5.53 ± 0.02	5.55 ± 0.01	5.53 ± 0.02
180	5.47 ± 0.03	5.48 ± 0.03	5.49 ± 0.02	5.45 ± 0.01	5.43 ± 0.03	5.46 ± 0.01

No statistical difference (p > 0.05).