Extraction of rice bran oil

Rice bran is a by-product of rice processing. Rice bran oil is a fat obtained from the rice husk layer. Rice bran contains 15 to 22% oil. Rice bran oil is a high-quality edible oil that contains essential fatty acids that are necessary to promote healthy growth of the human body. It is also known as “healthy oil” and “nutrient oil” because it has the advantages of being resistant to storage and oxidation. Rice bran oil processing is divided into two major parts: oil refining and refining.

(1) Clearing → Steaming → Making Cakes → Pressing → Filtration

(II) Production operation

1. Select the method of air separation, screening, etc. to remove the broken rice and other impurities in the rice bran.

2, steamed stir-fried rice bran directly into the flat-bottomed wok, the speed is 40 rev / min, the water is about 6.5 ~ 7.5%, the temperature is 120 °C, and the steaming time is about 10 minutes. Or put the rice bran into a vertical multi-layer steaming frying pan, add water to make the moisture content reach 25%, the steaming pressure is 490-686.6 kPa, the end temperature is 130°C, and the moisture is 4-5%.

3, make the cake The steamed and fried raw material is put into the spiral-type bread making machine and pressed into the cake. Make cake faster.

4. Pressing with a 90- or 95-type press. Pressing at the press for about 3 to 5 minutes. Slowly press until most of the oil is squeezed out. vertex.

5. Filtration The pressed frizzy oil is filtered on the oil filter with a canvas or double white cloth. The froth oil, which is controlled at a temperature of 70°C, must be refined before consumption.

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