Glyceryl Tristearate

If, on the other hand, RCOOH is a higher fatty acid and R OH a polyhydric alcohol, then the enzyme is called a lipase. Stearin or glyceryl tristearate (a fat) is... 

Glyceryl tripalmitate (Palmitin) (p. 104) Glyceryl tristearate (Stearin). Phenyl benzoate. . ... 

Sodium stearate is one of the main compounds in common soap. To make soap, you start with beef fat. If you treat beef fat with steam you get tallow, a mixture of fats, one of which is glyceryl tristearate ... 

When you boil glyceryl tristearate in lye (sodium hydroxide), you get sodium stearate and glycerin. When you remove the glycerin, you get soap. 

Glyceryl Tristearate occurs as a white, microfine, crystalline powder. It is prepared by reacting glycerin with stearic acid in the presence of a suitable catalyst such as aluminum oxide. It is also found in many animal and vegetable fats such as tallow and cocoa butter. It is soluble in hot alcohol and in chloroform very slightly soluble in cold alcohol, in ether, and in petroleum ether but insoluble in water. 

Identification Glyceryl Tristearate exhibits the following typical composition profile of fatty acids determined as directed under Fatty Acid Composition, Appendix VII ... 

Tristearin. Octadecanoic acid 1,2,3-propanetriyt ester stearin glyceryl tristearate. C H,) mol wt 891-45. C 76.79%, H 12.44%, O 10.77%, Present in many animal and vegetable fats, especially the hard ones like cacao butter and tallow. Prepd from stearic acid and glycerol in the presence of AijOj Ingram, Brit, pat. 663,566 (1951 to I.C.I.) by catalytic hydrogenation of many oils Bailey s Industrial Oil and Fat Products (Wiley, New York, 3rd ed.. 1964) pp 881-882. 

Vanease. [Am. Ingredients] Hydrogenated polysorbate 80, glyceryl lactyl palmitate, sodium carboxym yl cellulose, sodum propionate, glyceryl tristearate, sodium bCTzoate, acetk acid eimilsifier fm- food industry. 

Only the glyceryl trioleate contains carbon-carbon double bonds for unsaturation. Consequently, just as an alkene does, it should decolorize the red solution of Br2/CClt or the purple color of KMnOi. Glyceryl tristearate will fail to decolorize these solutions so that the compounds may be distinguished on this basis. 

Elfamycin (168) is an antibiotic produced by Streptomyces lactamdurans NRRL 3802 and possesses growth promoting activity. A suitable feed additive was formulated by adding the sodium salt of efrotomycin (735 mg) in ethanol (5 ml) to corn cob grits (8.265 g) followed by solvent evaporation and a coating of the solids with 10% tristearin (glyceryl tristearate) <88SAP8706440>. 

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