Preparation technology of corn germ oil

Corn germ is a good oil resource. In recent years, with the development of corn deep processing industry such as starch, starch sugar and alcohol, corn germ oil has grown rapidly in the international market and has become one of the main edible vegetable oil varieties in the world.

There are two ways to extract maize germ oil: one is to separate and extract the germ from maize by corn processing plant (including wet degermination) and obtain wool maize germ oil by pressing or solvent leaching; the other is to use DDGS (high protein feed additive full price dry distiller's grains with Solubles) in alcohol processing enterprises. GS) leaching of oil.
In the oil industry, corn germ is extracted by microwave drying machine technology after degermination, which is more representative. Now the details are as follows.
1 deembryos
There are mainly two kinds of rice germ removal technology: one is dry deembryogenesis, the other is wet deembryogenesis. Two. The purity of dry germ was low, and there were more impurities in starch and seed coat. The oil content was 20~25. Screening method is used to remove impurities as far as possible. Otherwise, starch impurities will greatly affect the oil yield of germ, and starch in germ will reduce oil flow area, block oil path, absorb oil and reduce oil yield in the process of pressing and leaching, gelatinize and coke in the process of steaming, pressing and desolving, which will affect the quality of finished oil and meal.

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