Comparison Study between Batch and Continuous Processes to Obtain Chitosan-Based High Porous Biomaterial for Biological Applications

Table 4

Rheological properties, density, , and of foams obtained using a continuous procedure (, , and ).

Initial formulation	Rheological properties		Density (kg m^-3)		(μm)
		(Pa·s^n)
CS/WPI	0.62 ± 0.02	10.0 ± 0.8	382	0.97
CS/WPI/SiO2	0.53 ± 0.01	11.93 ± 0.31	298	1.00
CS/WPI/HAp	0.55 ± 0.02	16.12 ± 1.2	402	0.93	64.25 ± 0.04
CS/WPI/SiO2/HAp	0.61 ± 0.04	8.18 ± 1.42	329	1.00	70.24 ± 0.01

CS: chitosan; WPI: whey protein isolate; HAp: hydroxyapatite; n: flow behaviour index; k: consistency index; Eff: foaming efficacy; d₃₂: bubble size; L: liquid flow rate; G: gas flow rate and N: rotating speed. Each assay was done in triplicate, and data are expressed as means (± standard deviation) or as average value.