Fig. 3From: Supercritical fluid extraction of polyphenols from lees: overall extraction curve, kinetic data and composition of the extractsThin-layer chromatography of the SFE lees extracts obtained at 313 K/20 MPa. Plates are shown under a UV light of wavelength 366 nm. The X axis indicates the extraction time and Y axis the number of the identified bandsBack to article page