How is high fructose corn syrup produced ?
Before answer the question how is high fructose corn syrup produced? Let's learn about the high fructose corn syrup,HFCS is a nutritive sweetener made from corn. It is widely used in carbonated drinks, fruit juices and sports drinks as well as snacks, syrups, jelly and other sugary products.
The raw material for how is high fructose corn syrup produced is glucose, which is converted from starch. That's to say the fructose produced before is glucose produce. The basic process of high fructose corn syrup produce is that starch slurry is catalyzed by alpha-amylase to form dextrin. Dextrin is formed by the catalytic action of glycosidase. Glucose is catalyzed by glucose isomerase, and the structure of the molecule changes, which is called isomerization of glucose.
Structural formulae of fructose (left) and glucose (right)
Glucose is isomerized to form fructose. However, not all glucose is isomerized and converted to fructose. This is because the glucose isomerase catalyzing efficiency peak (temperature is 60 ~ 70 ℃), the ratio of glucose into fructose and only 53.5% ~ 56.5%, and to attain balance and the catalytic reaction takes a long time. As a result, the ratio of glucose to fructose is actually only 42% to 45%, and the rest is still glucose. In other words, the product is actually a mixture of glucose and fructose, a mixture called fructose syrup. If the separating fructose and glucose, fructose syrup will separate isomerization of glucose again, and so repeatedly, finally the mixture of fructose content can reach 70% ~ 90%, and the mixture is called high fructose corn syrup.
High fructose corn syrup production machine
As far as we know that the raw material for how is high fructose corn syrup produced is starch. Any crops containing starch, such as corn, rice ,cassava, potato, etc., can be used to produce glucose syrup. The traditional technology of production glucose syrup from corn in high fructose corn syrup plant first step is making starch from corn, then we use the starch to produce the high fructose corn syrup. But now our company has new technology which is the dry milling method with double-enzyme method. It can produce glucose syrup from corn or broken rice directly. It do not need the starch production process. It will save much cost and consumption during the whole corn glucose syrup processing plant.
How is high fructose corn syrup produced according to our technology?
High fructose corn syrup production process
Our dry milling method for corn glucose syrup processing plant: first dry cleaning corn, remove the corn germ (can be used for making corn oil) and then use dry milling method to mill cleaned corn to required corn powder , without any water input or discharge during the corn powder production .
The double-enzyme method in the answer for how is high fructose corn syrup produced is first mix corn powder with water making slurry (like produce liquid glucose from starch), jet cooking slurry for liquefaction (liquefaction enzyme), separate protein and other solid impurity , saccharification (saccharification enzyme), decolorization , Ion exchange and evaporation to get required density high quality clear corn glucose syrup.
High fructose corn syrup production machine
According to our dry milling technology, glucose syrup processing can use two kind raw material (corn / broken rice) to produce the high quality glucose syrup directly . The customer can choose the more cheaper raw material at different time to produce glucose syrup and get more profit from the corn glucose syrup processing plant.
If you just produce the common quality glucose syrup, the above method for how is high fructose corn syrup produced is good for you. But for the high fructose corn syrup, we suggest corn starch as the raw material to produce high fructose corn syrup. The final product quality is much better than corn flour as the raw material.
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