Measures to increase oil production from corn
(1) Matching corn husks, dredging oil roads When using screw presses and hydraulic oil presses, some workshops are subject to conditions, the process is not matched, there is no steaming and frying equipment, or there is steaming equipment, due to improper operation, the corn is squeezed. The moisture content of the embryo is too high, and the phenomenon of “thinning” occurs in the press, which affects the pressing effect and affects the oil yield. In order to avoid this phenomenon, 20%~25% corn husk can be blended, which has a good effect. Because the blending of corn husk helps to increase the effect of internal pressure cake oil to clear the oil passage. (Operation is good, the oil in the corn husk can also be squeezed out). When other conditions are the same, the addition of corn husk has the effect of increasing the oil yield. If the purity of the corn embryo is about 80%, and the rest of the ingredients are corn husks, it is not necessary to add them. The corn husks to be added must be pure, the embryos can be contained, and the corn flour and slag should not be contained.
(2) Crushing and warming pressing method In the process of not being able to soften and pulverize the embryo, it can be pre-pressed first by using a screw press, and the pressure is not so large, so that it only acts as a crushing agent to achieve preliminary breaking of the corn germ epidermis and cells. The purpose is to observe with the naked eye, the surface of the corn embryo is slightly oily, and then immediately heated and steamed, fried to brownish red, the temperature reaches about 100 degrees, and then installed by the hydraulic press, there is good effect, this method Suitable for hydraulic press press process.
Practice has proved that the use of this method, compared to the effect of improving the oil yield after direct frying, can be equivalent to the effect of steaming the machine after softening the embryo. According to some factory tests, if the purity of corn embryo is about 80% (the rest is corn husk), the crushed steamed and sautéed crush is less broken and steamed and squeezed, and the oil can be 2~3 kg per 50 kg of corn.
