Determination of process parameters and bioactive properties of the murici pulp (Byrsonima crassifolia) extracts obtained by supercritical extraction

摘要

The obtaining of muruci extracts (Byrsonima crassifolia) was performed by CO2-SFE and CO2+EtOH-SFE, which were conducted at 323.15 K-343.15 K, and at 15 MPa to 49 MPa. The increase of 50% in the solvent flow rates, and the reduction of 33% in the dynamic period increased the yields. For the CO2-SFE, the highest values of global yield (9.12%), lutein (207.18 mu g/g), and antioxidants (33.91 mu mol TE/g) were obtained at 333.15 K. In the CO2+EtOH-SFE of the defatted freeze dried murici pulp, the highest values of lutein (209.73 mu g/g), phenolics (43.69 mg GAE/g), and antioxidants (138.85 mu mol TE/g) were obtained at 940 kg/m(3), with a strong positive phenolics/antioxidants correlation. The functional quality suggests hypercholesterolemic, antiatherosclerosis and antithrombogenic effects.