This paper reports a method to produce a solvent-free extract from green tea leaves with high content of
catechins and low content of caffeine, in two steps and using only ‘‘green’’ solvents. The method is based
on the pressurized liquid extraction (PLE) of the green tea leaves using ethyl lactate as solvent, followed
by a selective precipitation procedure using the supercritical carbon dioxide (SCCO2) antisolvent (SAS)
technique