Table 1: Experimental design.

VariantsVariability factorsConstant factors
NaCl (%)Electrolysis time (min)Chitosan (%)HPMC (%)Lysozyme (%)Glycerol (%)Lactic acid (%)

N0.001E00.001 0110.2 25 (of dry weight of used polymers) 0.5
N0.01E00.01
N0.1E00.1
N0.001E50.001 5
N0.01E50.01
N0.1E50.1
N0.001E100.001 10
N0.01E100.01
N0.1E100.1