Dried C. forskohlii root powder (25 g) was extracted by SC-CO2
extraction using pure CO2 of >99% purity. For extractions by SCCO2
with an entrainer, the required quantity of entrainer was uniformly
mixed with the C. forskohlii root powder prior to extraction
and filled into the extraction vessel. The flow rate of the CO2 and
time of extraction was kept constant at 10 g/min and 60 min,
respectively.