Search results
Results From The WOW.Com Content Network
Stearin / ˈ s t ɪər ɪ n /, or tristearin, or glyceryl tristearate is an odourless, white powder. It is a triglyceride derived from three units of stearic acid . Most triglycerides are derived from at least two and more commonly three different fatty acids . [ 7 ]
Palm stearin is the solid fraction of palm oil that is produced by partial crystallization at controlled temperature. [1] It is a stearin in the sense of stearins and oleins being the solid and liquid fractions respectively of fats and oils; not in the sense of glyceryl tristearate .
Stearic acid (/ ˈ s t ɪər ɪ k / STEER-ik, / s t i ˈ ær ɪ k / stee-ARR-ik) is a saturated fatty acid with an 18-carbon chain. [9] The IUPAC name is octadecanoic acid. [9] It is a soft waxy solid with the formula CH 3 (CH 2) 16 CO 2 H. [9]
The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows: (C 18 H 35 O 2) 3 C 3 H 5 + 3 NaOH → C 3 H 5 (OH) 3 + 3 C 18 H 35 O 2 Na. Purified sodium stearate can be made by neutralizing stearic acid with sodium hydroxide. C 17 H 35 COOH+NaOH→C 17 H 35 COONa+H 2 O
It is widely used in cosmetics as a moisturizer or lotion. It is edible and is used in food preparation in some African countries. [3] It is occasionally mixed with other oils as a substitute for cocoa butter, although the taste is noticeably different. [4] [5] The English word "shea" comes from sǐ, the tree's name in Bambara. [6]
Palm kernel oil is commonly used in commercial cooking because it is lower in cost than other oils, remains stable at high cooking temperature, and can be stored longer than other vegetable oils. [10] [11] The approximate concentration of fatty acids (FAs) in palm kernel oil is as follows: [12]
Saponification is a process of cleaving esters into carboxylate salts and alcohols by the action of aqueous alkali.Typically aqueous sodium hydroxide solutions are used. [1] [2] It is an important type of alkaline hydrolysis.
The lower legs of slaughtered cattle (less the hooves) are boiled, skin and all.The fat that is released (as an oil) is skimmed off, filtered, and pressed.The first pressing is the highest grade; the second produces both a lower grade and a solid press cake or stearin product used, among other things, to make soap.