Download the Document: Lipoprotein Introduction: Lipoproteins are aggregates, consisting of proteins, polar lipids and triacylglycerols; which are water soluble and can be separated into protein and lipid moieties by an extraction procedure using suitable solvents. This indicates that only non-covalent types of bonds are involved in the formation of lipoproteins. The aggregates are primarily stabilized by hydrophobic interactions between the apolar side chains of hydrophobic regions of the protein and the acyl residues of the lipid. In addition, there is a contribution to stability by ionic forces between charged amino acid residues and charges carried by the phosphatides. Hydrogen bonds play a small role in binding lipids molecules as there are only few sites available for such linkages. In wheat flour, the lipoprotein complex consists of prolamine and glutelin attached to glycolipids by hydrogen bonds and hydrophobic forces. Thus, lipoproteins are held together only by non-covalent