Fig. 7From: Supercritical fluid extraction of polyphenols from lees: overall extraction curve, kinetic data and composition of the extractsConcentration of polyphenols in the lees extracts as function of time. Total flow rates of SFE at 20 and 35 MPa were 12.6 ± 0.1 and 9.6 ± 0.5 × 10−5 kg/s, respectivelyBack to article page