Structured Lipids Enriched with Omega-3 and Omega-6 Highly Unsaturated Fatty Acids

摘要

Structured lipids are triacylglycerols (TAG) that have been modified to change the fatty acid compositions and stereospecific distribution of fatty acids from their native state. These tailor-made lipids may contain mixtures of short-, medium- and long chain fatty acids on the same glycerol molecule, and these can be saturated or unsaturated. They can be designed for nutritional and pharmaceutical purposes targeting specific diseases and pathological conditions. Structured lipids containing n-6 and n-3 polyunsaturated fatty acids (PUFA) were produced with both immobilized and non-immobilized lipases as biocatalysts. Among PUFA, eicosapentaenoic (EPA; 20:5n-3), docosahexaenoic(DHA; 22:6n-3) and γ-linolenic (GLA; 18:3n-6) acids have attracted much attention in recent years due to their beneficial health effects. Structured lipids containing these fatty acids may be desirable in certain health, nutritional and pharmaceutical applications.