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The process of Corn grits to glucose syrup

Post on 2017-07-11

With the development of the society and economy, the corn is widely used to be processed to starch, glucose, and other starch derivatives, such as high fructose, DMH, sorbitol, maltodextrin, fermentation products, etc. all over the world owing to its lower price, high yield and high nutrition. The technology of corn flour or corn starch to glucose has been mature. Base on existing technology and the research of raw material and product market, Meckey Team creates a new technology to produce glucose and other derivatives: Corn grits to glucose syrup. In this production line: first, the corn is peeled and de-germ, then crushed to corn grits; second, the corn grits is to be processed to glucose syrup, the product glucose syrup is qualified to be used in the food, beverage and other additives.

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This new technology has many advantages compared with other technology as below:

1) Compared with corn to starch to glucose process, this plant has less investment and less covering area. Besides, it can get high protein feed and corn germ oil.

2) Compared with existing corn to corn flour to glucose process, this plant has larger yield. 

3) This plant is lower consumption and lower pollution.

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Process brief introduction:

1) Corn to corn grits: Corn is peeled and de-germ then be crushed into particle by crusher.

2) Corn grits adjustment: Raw corn grits is unloaded to grits tank and sent to steeping tank for softening with water added after de-stone and de-iron. Dipped corn grits is sent to crashing section to grind by pump.

3) Liquefaction: Corn grits is sent to buffer tank then liquefied by jet cooker with the aid of liquefaction enzyme. 2 times jet cooking is needed for better reaction. Then the material is sent to flash for cooling then to the neutralization tank for suitable PH value.

4) Coarse protein making: The mixed syrup goes to filter press for removing the protein residues, fiber, etc. This dreg can be washed via process water to recover glucose. Then it is sent to bundle dryer for coarse protein making.

5) Saccharification: The temperature and PH value of liquefied material are adjusted and then sent to saccharification tanks for reaction. After being kept in holding tube the required DE value of the glucose will be reached.

6) Decoloring and filtration: After filtration, the dextrose is sent to the decoloring tank. In this section, active carbon is needed for decoloring at proper temperature. After decoloring, the material will be sent to the filter for filtering active carbon.

7) Ion exchange: Tiny foreign items and bad odor is removed via ion exchange column. This equipment is used for high quality product.

8) Evaporation: The glucose is totally cleaned through safety filter then sent to evaporator for concentrating to reach the required DS as final product.


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