Green tea encapsulation by means of high pressure antisolvent coprecipitation

SEM micrographs of the green tea extract co-precipitated with PCL (MW: 25,000) by Supercritical Antisolvent Process. Operative conditions: P: 9 MPa, T: = 284 K; FCO2/Fsol: 9.4, CPCL/CTEA: 25, encapsulation efficiency: 82% (2000× magnification; scale bar: 10 μm).