Current Position:首页 > Products > Pre-processing

Corn germ pretreatment process

TIME:2014-10-15 10:27:13FROM: AUTHOR:
Corn germ pretreatment process: corn germ oil preparation processes, equipment and operating techniques and other fuel oils preparation process much the same,...

 

Corn germ pretreatment process: corn germ oil preparation processes, equipment and operating techniques and other fuel oils preparation process much the same, shall be subject to cleaning, drying, softening, flaking, such as steaming and roasting process.
Corn germ pretreatment process 1. Cleanup: system recovery corn grits, corn germ, corn flour mixed with more, Powder and dander, you need to be sieve shaker with a double reason. Mesh sieve, remove the first layer of a large complex, with 1.5x1.5 mesh / square cm; second layer of clear corn flour, grits and dander crushed by 4x4 mesh / square cm, if the matter is still under the screen mixed with more embryos crumbs, you can switch to 5x5 mesh / square cm or 7x7 mesh / square centimeter screen, in order to reduce the loss of corn germ. Corn starch recovery system corn germ, mixed with coleorhiza dander and other impurities, need to use a shallow tray or trough continuous rinse with water several times, as with cyclone separator can be used to swirl generated by the centrifugal effect isolated germ.

                        蒸炒锅3.jpg
Corn germ pretreatment process 2. Drying: recovered in corn grits and corn starch manufacturing process corn germ, after cleaning, containing high moisture, strong activity again susceptible to microbial contamination, spoilage and rancidity caused by grease, affecting both yield and oil products quality, will reduce the use value meal. In order to maintain the freshness of corn germ in storage and transport, after cleaning up the corn germ, to be immediately dried or dried to a moisture content below 10%.
Corn germ pretreatment process 3. Softening: Preparation for corn germ oil head procedure. In this step, the corn germ by the heat treatment at the same moisture content of below 10%, so that the plastic material embryogenic changes. Common hot air dryer to soften or superheated steam roller dryer, when the embryo material softening temperature should not be too hasty to prevent protein denaturation leaving early embryo material loses its elasticity, thereby affecting the rolling embryo, steaming and roasting and crushing deal with.
Corn germ pretreatment process 4. Flaking: corn germ was softened, then through the roller rolling embryo rolled into 0.3--0.4mm sheet, and promote the destruction of cell structure, so that the oil shortening, easy fried and steamed material embryos press.
Corn germ pretreatment process 5. Steaming and roasting: billet enters the water content evaporated when the fried steamed device not less than 12%, 40 - 50 minutes by heating, and finally the parison temperature exceeds 100
, the moisture content of the parison is gradually decreased from 12% to 3 % - 4% ​​in order to feed the embryo to brownish red color gradient, and can not smell the aroma of char, rather than up.

 

 


PRE:返回列表
NEXT:Flaking