Now, when bile is produced by the liver it is stalled in the gallbladder. It is stored in the gall bladder and eventually it is released via the common bile duct into the small intestine. Now, once the bile is inside the lumen of the small intestine it basically mixes very well with the fat globules because it contains hydrophobic molecules and this is what breaks down the fat globules into smaller molecules we call emulsion droplets. In this process by which the bile mixes with the fat globules and breaks them down to smaller emulsion droplets, is known as emulsification. Now, emulsification breaks down the fat globules, and it greatly increases the area on which the light pace can actually act on. And digestion begins on the surface of these emulsion droplets.