Fig. 2From: Supercritical fluid extraction of polyphenols from lees: overall extraction curve, kinetic data and composition of the extractsFitted (spline) OEC obtained at 313 K/20 MPa and 12.6 ± 0.1 × 10−5 kg CO2 + ethanol/s. t CER is the duration of the constant extraction rate period and R CER is the relative yield to the CER periodBack to article page