Abstract: A high-quality lipid composition is disclosed having low oxidative deterioration such as measured by low anisidine values. Also disclosed are methods of preparing the same from a lipid-containing material that include enzymatic degradation of protein and/or carbohydrate components of the material. Lipid-containing materials include biomass, such as microorganisms. The invention further includes products containing the lipid compositions, such as dietary supplements, food products, pharmaceutical formulations, humanized animal milk, and infant formula.

Abstract: Disclosed are methods of preparing high-quality polyunsaturated fatty acid-containing lipids from a lipid-containing material that include enzymatic treatment of components of the material and/or pressure disruption of the material. Lipid-containing materials include biomass, such as microorganisms. The invention further includes products containing the lipid compositions, such as dietary supplements, food products, pharmaceutical formulations, humanized animal milk, and infant formula.