Development of Oral Dissolvable Films of Diclofenac Sodium for Osteoarthritis Using Albizia and Khaya Gums as Hydrophilic Film Formers

Table 2

Comparative physicochemical properties of purified Albizia and Khaya gums (mean ± SD, ).

Parameter	Type of gum
	Albizia	Khaya
Extraction yield (%)	39.38 ± 2.35	67.50 ± 2.98
Moisture content (%)	12.42 ± 2.10	13.92 ± 1.51
Insoluble matter (%)	0.275 ± 0.041	0.282 ± 0.013
pH (1% w/v @ 25°C)	5.00 ± 0.12	3.84 ± 0.09
Total ash (% w/w)	7.853 ± 0.064	5.603 ± 0.023
Water soluble ash (% w/w)	1.303 ± 0.023	1.200 ± 0.017
Acid insoluble ash (% w/w)	0.600 ± 0.017	0.607 ± 0.012
Solubility (%)
Cold water	1.273 ± 0.064	0.380 ± 0.020
Warm water	1.747 ± 0.083	0.527 ± 0.064
Acetone	0.110 ± 0.044	0.127 ± 0.031
Chloroform	0.070 ± 0.062	0.020 ± 0.020
Ethanol	0.093 ± 0.023	0.087 ± 0.042
Swelling index (%)	611.29 ± 4.07	477.97 ± 8.67
True density (g/mL)	1.363 ± 0.012	1.412 ± 0.073
Temperature of charring (°C)	258.33 ± 2.89	242.67 ± 2.52