Lipid Properties and Fucntions
Lipids are small molecules which are both hydrophobic and amphiphilic. Which means they are insoluble in non-polar solvents and can form vesicles, liposomes or membranes when placed in an aqueous environment.
They function as energy stores, structural components of membranes and as signaling molecules. These latter are known as bioactive lipids and play a role in immune regulation, maintenance of homeostasis and inflammation.
Biological lipids are made from one of two subunits, which each can be distinguished further:
• Ketoacyl Groups
o Fatty Acids
o Glycerolipids – including glycerides (such as triglycerides (also known as fats or oils))
o Sphingolipids – which contain many bioactive lipids involved in cell growth, death, adhesion, migration, angiogenesis, and angiogenesis.
• Isoprene Groups
o Sterol Lipids
o Prenol Lipids
Complex Lipids and Research Applications
Complex lipids also exist in the form of apolipoproteins, glycolipids, and lipoproteins.
The study of lipids; lipidomics, is often considered a component of metabolomics. It encompasses profiling, identifying and quantifying lipids within a natural source.