Chitosan NPs physical properties, entrapment efficiencies (%) and pH (means ± SD) at the time of production.
a,b The results represent the average and the standard deviation (SD) of samples in triplicate (n = 6). The same letters, in the same column correspond to the values of the same
parameter from the different formulations meaning that there are no significant statistical differences between the values (P > 0.05). A,B The same letters, in the same line correspond to the same value in the initial time, meaning that there are no significant statistical differences between the values
(P > 0.05). NA – not applicable