Membrane-based processes for reducing at least one impurity and making a concentrate comprising at least one natural component from a non-marine fatty acid oil mixture, and compositions resulting thereof

A process for reducing at least one impurity and/or for producing a concentrate comprising an impurity from a non-marine fatty acid oil mixture, the process comprising:

• (a) mixing (i) a crude non-marine fatty acid oil mixture comprising an impurity that has not been subjected to solvent extraction with (ii) a miscible organic solvent to form a solution;
• (b) passing the solution across at least one selective membrane, wherein a retentate forms comprising oil, and a permeate forms comprising the impurity;
• and
• (c) removing the miscible organic solvent from the retentate to form a purified non-marine oil,
• wherein the impurity in the purified non-marine oil is reduced compared to the non-marine fatty acid oil mixture,
• wherein the non-marine fatty acid oil mixture comprises at least one non-marine oil selected from the group consisting of a triglyceride oil and a phospholipid oil;
• and
• wherein the selective membrane has a rejection RTG of the at least one non-marine oil selected from the group consisting of a triglyceride oil and a phospholipid oil, which is greater than a membrane rejection RImp of the impurity.