The extraction process of rice bran oil, rice bran is a byproduct of processing, rice bran oil from rice bran layer is larger Mi Maipi preparation oil, rice bran oil content of 15% to 22%. Rice bran oil is a high quality edible oil, the advantages of promoting the growth of human health, essential fatty acids, resistant to preservation, anti-oxidation, which contain, also known as the “healthy oil”, “nutrition oil.” Rice bran oil extraction process and refining process is divided into two parts.
1 Cleaning Extraction
Available winnowing, screening and other methods to remove broken rice bran and other impurities inside .
2 steaming and roasting process
The rice bran directly into flat-bottomed wok, the speed of 40 rev / min, the water is about 65% ~ 75% and a temperature of 120 â„ƒ, steaming and roasting time is 10 minutes or so. Rice bran can also be placed in a vertical multi-steaming wok, add water to a moisture content of 25%, steaming and roasting pressure is 490 to 686.6 kPa, the end temperature of 130 â„ƒ, the moisture of 4% to 5%.
Rice bran oil extraction process 3 to make cakes
Steamed fried blanks into the spiral do cake machine press into cakes. Do cake faster.
Rice bran oil extraction process 4 press
With a 90 or 95-type pressing machine pressing, when the press first fast-pressed, for about 3 to 5 minutes, then slowly squeezed until after most of the oil is squeezed out and drain When boost to the vertex with the high-pressure pump.
Rice bran oil extraction process 5 filter
The press good hair bran oil on canvas or double Purifier filter cloth, filter temperature control at 70 â„ƒ, squeezed out of the hair bran oil, must be refined in order to eat.