Rice Bran Oil Refining Process Introduction
Oil content of rice bran is 16-22%, unsaturated fatty acid content of rice bran oil is 60-70%, which includes 42% oleic acid, 38% linoleic acid, and rich oryzanol. Characteristics of dirty rice bran oil itself determine the rice bran oil refining process is different from other oil products.
First of all, the acid value of rice bran oil is very high, generally in 8 to 20 mg/G (KOH), which contain wax 2-5%, de-coloring is difficult because of the deep color and luster. Traditional alkali refining technology consumes lots of alkali, refining cost high. The production of qualified national level refined rice bran oil can reduce costs, it is suitable for adopting physical rice bran refining process.
Analysis of High Nutritional Value of Rice Bran Oil
Rice bran oil extract from most nutrition concentration area of rice cortex and rice germ. Oil fatty acid composition of rice bran is more balanced, it contains rich Ve, complex lipids, phospholipids, triene tocopherol, squalene, phytosterol (5%), oryzanol (0.5%), and other dozens of natural biological active ingredient, unsaturated fatty acid content is over 80%. Rice bran oil is distinctive precious health edible oil. Rice bran oil has many nutrients which recognized as oil treasures, and it can improve immune function of human body.
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