Table 1. Steps of the cooking and digestion processes simulated in an in vitro system.
TREATMENTS | NOT TREATED | COOKED | DIGESTED | COOKED and DIGESTED |
Boiling 4′ and cool to room temperature | − | + | − | + |
Add 10 mL Phosphate Buffer 50 mM pH 6.9 | − | − | + | + |
Stir slowly (90 rpm) 15 min 37°C | + | + | + | + |
Add 38.5 µL of human salivary α-amylase (MOUTH COMPARTMENT) | − | − | + | + |
Stir slowly (90 rpm) 15 min 37°C | + | + | + | + |
Adjust pH to 2.0 with HCl (STOMACH COMPARTMENT) | − | − | + | + |
Add 96.2 µL of porcine pepsin | − | − | + | + |
Stir slowly (90 rpm) 30 min 37°C | + | + | + | + |
Adjust pH to 6.9 with NaOH (SMALL INTESTIN COMPARTMENT) | − | − | + | + |
Add 192.3 µL of pancreatin from porcin pancreas | − | − | + | + |
Add 3.1 mL of bile acids standards mixture | − | − | + | + |
Stir slowly (90 rpm) 90 min 37°C | + | + | + | + |
The human digestive process of inulin was simulated in vitro by using the method described in Sayar et al. 2005 (31).