Table 3.

Expected values from the design of experiments and best measured values for the starch only samples.

Mechanical property	Expected value	Measured value	Maize starch - Processing parameters (type and water content) - (wave amplitude, pressure)
Stiffness (MPa)	567 ± 17	505	Standard hydrated - 60 μm decreasing waves, 7.6 MPa
Yield stress (MPa)	8.7 ± 1.1	8.9	Standard dry - 60 μm decreasing waves, 17.8 MPa
Ultimate stress (MPa)	21.5 ± 0.6	21.2	Standard hydrated - 60 μm decreasing waves, 7.6 MPa
Ultimate strain (%)	12.7 ± 2.3	11.8	Standard hydrated - 90 μm decreasing waves, 17.8 MPa
Elastic energy (kJ/m3)	99.6 ± 19	99.6	Standard dry - 60 μm increasing waves, 17.8 MPa