High fructose corn syrup processing machine

    For more than 150 years, corn refiners have been perfecting the process of separating corn into its component parts to create a myriad of value added products. The corn wet milling process separates corn into its four basic components: starch, germ, fiber, and protein.

There are five basic steps to accomplish this process. First the incoming corn is inspected and cleaned.Then it is steeped for 30 to 40 hours to begin breaking the starch and protein bonds. The next step in the process involves a coarse grind to separate the germ from the rest of the kernel. The remaining slurry consisting of fiber, starch, and protein is finely ground and screened to separate the fiber from the starch and protein. The starch is separated from the remaining slurry in hydrocyclones. The starch then can be converted to syrup or it can be made into several other products through a fermentation process.

    High fructose corn syrup (HFCS) (also called glucose-fructose, isoglucose and glucose-fructose syrup) is a sweetener made from corn flour that has been processed by glucose isomerase to convert some of its glucose into fructose in high fructose corn syrup processing plant. As a sweetener, HFCS is often compared to granulated sugar, but manufacturing advantages of HFCS over sugar include that it is easier to handle and more cost-effective, below will introduce the production process of our high fructose corn syrup processing plant.

   In the traditional process, corn is milled to extract corn starch first and then an "acid-enzyme" process is used to make fructose from corn.

Now our company has the new technology, we do not need making starch from corn first , our high fructose corn syrup processing plant can produce the fructose syrup from corn power . First step is mill corn to corn powder with dry method, then produce high DE glucose syrup from corn powder , at last produce HFCS 42  by glucose isomerase to convert some of its glucose into fructose. By the way, use corn starch as raw material got syrup quality is better than use the corn powder to produce.

High fructose syrup processing machine

Our company production process for the high fructose corn syrup processing plant as below:

1. Corn powder making process in high fructose corn syrup processing plant

Produce corn powder from corn is not similar with the ordinary corn powder processing.

After cleaning the corn , it need separate the corn germ out first , then peel the corn bran to get corn meal for milling . After milling and sieving for some times  to get the quality corn powder for making the glucose syrup. 

2. Corn power slurry making process  in high fructose corn syrup processing plant

Mixing the corn powder and water to get the right density slurry. Then add the amylase and keep on the temperature for particular time to make corn powder absorbing enough water  . 

3. Liquefaction process  in high fructose corn syrup processing plant

The liquefaction process is convert the starch which contented inside of the corn powder into liquid dextrin. The material will be sprayed at high temperature by jet cooker . With the aid of amylase and steam , the starch will be converted into liquid dextrin quickly. 

4.  Deproteinization process  in high fructose corn syrup processing plant

The deproteinization process is separate the corn protein and other solid impurity from liquid dextrin by filter press. The liquid dextrin will be pumped to next process, the corn protein will be left for sale. .

The by product corn protein ( feed grade) is top grade protein additives for making animal feed .

5. Saccharification process  in high fructose corn syrup processing plant

The saccharification process is convert the liquid dextrin into required DE value glucose syrup with the aid of gluco-amylase in the tank . This process should be run under specific temperature for some hours . For making high DE glucose syrup , it will need more longer time .

6. Decolorization process  for glucose syrup  in high fructose corn syrup processing plant

The decolorization process is  removing the color of the glucose syrup by activated carbon.  The glucose syrup which reached required DE  will be pumped from saccharification tank into the decolorization tank , mixed with activated carbon at proper temperature .

7.Decarburization process for glucose syrup  in high fructose corn syrup processing plant

The decarburization process is separating the activated carbon from the glucose syrup by filter press to get clear glucose syrup. 

The glucose syrup will flow into the slot and the transfer tank for next step. The activated carbon will be left.

8. Ion exchange process for glucose syrup  in high fructose corn syrup processing plant

The Ion exchange process is using the resin to remove the tiny foreign items and bad odor to get high quality pure glucose syrup.

The resin need regeneration by acid and alkali washing after working for some days

9. Evaporation process for glucose syrup  in high fructose corn syrup processing plant

The evaporation process is evaporate the water inside the glucose syrup to increase the DS of glucose syrup to the requirement (45%) before isomerisation.

10. Isomerism process  in high fructose corn syrup processing plant

The isomerism process is convert the glucose syrup to fructose syrup with the aid of isomerase. The glucose is converted into with 42% content of fructose syrup.

11. Decolorization process  for fructose syrup  in high fructose corn syrup processing plant

The decolorization process is  removing the color of the fructose syrup by activated carbon.  The fructose syrup will be pumped into the decolorization tank , mixed with activated carbon at proper temperature .

12.Decarburization process for fructose syrup  in high fructose corn syrup processing plant

The decarburization process is separating the activated carbon from the fructose syrup by filter press to get clear fructose syrup. 

13. Ion exchange process for fructose syrup  in high fructose corn syrup processing plant

The Ion exchange process is using the resin to remove the tiny foreign items and bad odor to get high quality pure fructose syrup.

The resin need regeneration by acid and alkali washing after working for some days

14. Evaporation process for fructose syrup  in high fructose corn syrup processing plant

The evaporation process is evaporate the water inside the fructose syrup to increase the DS of fructose syrup to the requirement (  DS around 71%)..

15.  Final product storage  in high fructose corn syrup processing plant

The fructose syrup which reach the required DS in the evaporation process will be pumped into final product storage tanks for storage.

The final product tank can keep the fructose syrup purity before transportation.

High fructose corn syrup processing machine