Study on the preparation of rice bran oil

Study on the preparation of rice bran oil
Rice bran is one of the main grain crops in China. Although the by-product of rice bran processing only accounts for 6%-8% of the quality of rice, it accounts for about 60% of the nutritional components of rice. The annual output of rice bran in China reaches more than 14 million tons, which is a large and extensive renewable resource. 
At present, the extraction methods of rice bran oil mainly include traditional pressing method, microwave drying mechanical technology pressing method, supercritical carbon dioxide extraction method, leaching method and so on. The traditional pressing method will lead to the loss of nutrients in rice bran oil, while microwave drying pressing method only has a certain loss in the refining process; supercritical carbon dioxide extraction Although the method is more environmentally friendly, it is difficult to achieve industrial production because of the expensive equipment, and some nutrients can not be completely extracted. 

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