Table 2: Numeric values of the Spline model constants for 400 bar and 60°C.

Extraction method Constant ARRD (%)
a1 a2 a3 tCER tFER ttotal
SFE-CO2 4.1047 0.7498 0.1635 4.77 38.99 79 8.32
a1, a2 and a3 (min-1); tCER, tFER, and ttotal (min).