2.2. Experiments
d) High pressure
treatment of the samples in a Stansted Fluid Power Equipment, model
FPG9400:922 with a cylindrical vessel (2 l capacity, maximum working
pressure 900 MPa, operating temperature range −20 to 120 °C) located
at the ITA Institute (INTA Castelar, Argentina). Pressurization rate was
300 MPa/min and de-pressurization was instantaneous. Experiments
were carried out at different pressures 150, 300, and 600 MPa and a
temperature of 20 ± 5 °C; the samples were maintained at the working
pressures for 5 min. In all cases control samples (not submitted to HHP)
were also analysed. Quality attributes (colour and texture) were
determined in all cases to find adequate processing conditions.