Rice bran wax

Rice bran wax is a vegetable wax selected from the bran of rice (Oryza sativa ) is recovered by extraction.

Properties

Rice bran is a yellowish white to orange-brown substance, consisting mainly of fatty acid esters of higher fatty alcohols, ceryl alcohol and palmitic acid something. In addition, the wax contains free fatty acids and squalene and phospholipids. The wax content is greater than 96 % usually.

The melting point is 77-86 ° C, saponification value 75-120, the acid number between 2 and 8, and the iodine value is about 10 to 25

Rice bran can be easily deodorized and bleached.

Extraction

Rice bran wax obtained from rice bran, a by-product of rice production by extraction. In addition to conventional solvents and supercritical CO2 and other supercritical solvents such as liquid propane can be used here.

Use

Rice bran is used primarily for cosmetic purposes. The main application is the use as a non-melting wax peeling, the particle size distribution can be adjusted in a wide range.

The Mikrotisierung of Reiskleiewachses is carried out by dispersing in water - solvent mixtures at elevated temperature, followed by cooling, filtration and drying. This mikrotisierte wax over a wide spectrum of particle sizes can be obtained. Rice bran wax is also a source of policosanols with fatty alcohols from 24 to 36 carbon atoms per molecule.