1.2.3-Propanetriol

Animal fats and vegetable oils are triacylglycerols, or triesters, formed from the reaction of glycerol (1,2, 3-propanetriol) with three long-chain fatty acids. One of the methods used to characterize a fat or an oil is a determination of its saponification number. When treated with boiling aqueous KOH, an ester is saponified into the parent alcohol and fatty acids (as carboxylate ions). The saponification number is the number of milligrams of KOH required to saponify 1.000 g of the fat or oil. In a typical analysis, a 2.085-g sample of butter is added to 25.00 ml of 0.5131 M KOH. After saponification is complete, the excess KOH is back titrated with 10.26 ml of0.5000 M HCl. What is the saponification number for this sample of butter ... 

ChemicalDesignations-. nt tO" Glycerol 1,2,3-Propanetriol 1,2,3-Trihydroxypropane Chemical Formula-. HOCH2CH(OH)CHjOH. 

Triacylglycerol (Section 26.2) A derivative of glycerol (1,2,3-propanetriol) in which the three oxygens bear acyl groups derived from fatty acids. 

Therapeutic Function Topical antifungal Chemical Name 1,2,3-propanetriol triacetate Common Name Glyceryl triacetate... 

Problem 23,1 I One of the steps in fat metabolism is the reaction of glycerol (1,2,3-propanetriol) with ATP to yield glycerol 1-phosphate. Write the reaction, and draw the structure of glycerol 1-phosphate. 

Fats, as well as animal and plant oils, are esters. Actually they are triple esters of glycerol (1,2,3-propanetriol) ... 

Glycerol glycerine 1,2,3 trihydroxy propane 1,2,3 propanetriol Description... 

How do olive oils vary in acid content Oils are a complex mixture of compounds known as triglycerides. Triglycerides are esters formed from the alcohol glycerol (1,2,3-propanetriol, C3H8O3, Fig. 13.16.1) and three carboxylic acids... 

Teppen, B. J., M. Cao, R. F. Frey, C. Van Alsenoy, D. M. Miller, and L. Schafer. 1994a. An Investigation into Intramolecular Hydrogen Bonding Impact of Basis Set and Electron Correlation on the Ab Initio Conformational Analysis of 1,2-Ethanediol and 1,2,3-Propanetriol. J. Mol. Struct. (Theochem) 314,169-190. 

Common name Glycerol Glycerin Chemical name 1,2,3-Propanetriol Molecular weight 92.09 Formula C3H8O3 Density 1.264 g ml 1 Volatility Low... 

Glycerol is a colorless, odorless, viscous (syrupy), nontoxic and hygroscopic liquid with a very sweet taste its etymologic roots stem from the Greek glykys, sweet. Pure glycerol (1,2,3-propanetriol) is a trihydric alcohol with a specific gravity of 265 at 15 °C. Below 0 °C it solidifies to a white crystalline mass, which melts at... 

---