Abstract
Using supercritical carbon dioxide, a method for extraction of safflower seed oil was established. The supercritical fluid extraction (SFE) apparatus was set up and the extraction conditions were made optimal to attain 100% oil recovery at pressure of 490 bar, a temperature of 70°C and a extraction time of 50min with multiple-batch extraction and addition of 300μL n-hexane as a modifier. By use of multiple-batch extraction the extraction efficiency of 35.3% comparing to 12.8% in a single-batch extraction was obtained. The present SFE method was found to lower the organic solvent consumption and the time required for the extraction.
