A kind of preparation method of rice bran oil with low acid value

Abstract

The invention provides a preparation method of rice bran oil with the low acid value, which comprises the following steps: fresh-keeping the rice bran, extracting the rice bran oil, degumming, de-waxing, decolouring, deacidifying and deodorizing. The invention has the advantages of simple technology and low production cost; since the extracted crude rice bran oil is performed a fresh-keeping treatment, the acid value is relative low. The final finished product rice bran oil treated by the above steps is detected by a method prescribed by GB / T5530-2005, the acid value is between 1.0-3.0 (KOH) (mg / g).

Description

technical field

[0001] The invention relates to a method for preparing rice bran oil, in particular to a method for preparing rice bran oil with low acid value. Background technique

[0002] Rice bran oil is a nutritious vegetable oil. It has become another health food oil after sunflower oil and corn germ oil. Long-term consumption of rice bran oil can prevent cardiovascular and cerebrovascular diseases, promote metabolism and anti-aging, etc. Function. As far as my country's current situation is concerned, the annual output of rice bran is very large. Because rice bran is prone to rancidity and deterioration, and domestic production enterprises are scattered, the production scale is not large, and it is difficult to concentrate on deep processing and value-added. Only a small amount is used to prepare rice bran oil. Most of the rice bran It is only used locally as feed, with low added value.

[0003] CN101781605A disclosed a refining method of rice bran oil on July 21, 20...