Glyceride 286158 225138563 2008-07-12T02:18:05Z Borgx 271227 +id [[Image:Glycerine chemical structure.png|thumb|[[Glycerol]]]] [[Image:Rasyslami.jpg|thumb|[[Fatty acid]]]] [[Image:Triacetin.svg|thumb|[[Triacetin]], the simplest possible fat]] '''Glycerides''', more correctly known as '''acylglycerols''', are [[ester]]s formed from [[glycerol]] and [[fatty acid]]s. Glycerol has three [[hydroxyl]] [[functional group]]s, which can be esterified with one, two, or three fatty acids to form [[monoglyceride]]s, [[diglyceride]]s, and [[triglyceride]]s. [[Vegetable oil]]s and [[animal fat]]s contain mostly triglycerides, but are broken down by natural [[enzyme]]s ([[lipase]]s) into mono- and diglycerides and free fatty acids. [[Soap]]s are formed from the reaction of glycerides with sodium hydroxide. Glycerol is a product that can soften dehydrated skin by absorbing moisture from the air. If pure glycerol were left exposed to normal air, in 10 to 12 hours it would become 80% glycerol and 20% water by absorbing 1/5 of its weight in water. '''Partial glycerides''' are esters of glycerol with fatty acids, whereby only a part of the existing hydroxyl groups are esterified. Some hydroxyl groups within the glycerol ester are free contributing to the polaric properties of the material. Short chain partial glycerides are more polaric and have excellent solvent properties for many hard-to-solubilize drugs.<ref>[http://www.sasolos.com/products/pdf/Excipients_Pharmaceuticals.pdf Partial glycerides (page 10)]</ref> ==References== <references/> [[Category:Lipids]] {{biochem-stub}} {{ester-stub}} {{Glycerides}} [[da:Glycerid]] [[de:Acylglycerine]] [[es:Acilglicérido]] [[eo:Glicerido]] [[fr:Acylglycérol]] [[gl:Acilglicérido]] [[ko:글리세라이드]] [[id:Gliserida]] [[it:Gliceridi]] [[he:גליצריד]] [[nl:Glyceride]] [[pl:Acyloglicerole]] [[fi:Glyseridi]] [[vi:Glyxerit]]