结晶葡萄糖（一水结晶，无水结晶）
1，原料：淀粉
2，用途：食品，医药行业，发酵以及化工行业。
3，技术先进性
1. 使用沸腾流化床干燥，物料干燥均匀，成品质量稳定。
2. 利用真空蒸发结晶，结晶温度高，结晶速度快；结晶产品纯度高；不容易染菌。
Crystalline glucose (Dextrose Monohydrate, Dextrose Anhydrase)
Raw material: Starch
Usage: food, pharmaceuticals industry, fermentation and chemical industry.
Technical advantages:
1. By using fluid bed dryer, material is uniformly dried, product quality is stable.
2. The advantages of the high temperature of vacuum evaporation crystallization: high crystallization speed, high product purity, high solubility; the process is difficult to be contaminated.
流程：process description
The product Dextrose Monohydrate is made from corn starch milk by the process below:
Syrup conditioning—liquidation--saccharification--rotary drum vacuum filtering---ion exchange –concentration—cooling crystallization—centrifuge separating—drying—packing--product
1、Regulating PH value of starch milk
Starch milk enters liquefied PH regulating tank after doing, sodium carbonate solution is constantly added as per the flow rate of starch milk, which regulates the PH value, meanwhile some α-amylase is added
2、Liquidation：
Starch milk are pumped to first stage steam jetting liquidator after PH valve is regulated and get first time letting liquidation by mixing with steam. Amylodextrin is pumped to second stage steam jetting liquidator from remain tank and get second time liquidation mixing with steam. Amylodextrin enters second remain tank, at the outlet which another part of a-amylase is added, then they are pumped to the Continuous laminar liquid tank to get liquidation, and goes to saccharification process after liquefied liquid is cooled to 60℃. Half goes to dextrose monohydrate and half goes to syrup process.
3、Sacchrification
Hydrochloric acid is constantly added to the liquefied liquid form liquidation process as per its flow rate to regulate PH value; glucoamylase is added to get the liquid sacchrified. Meanwhile the liquid in the tank should be agitated during this process, to make the sacchrification equally until the DE value reach the specification, then goes to next process.
4、Vacuum rotary filtering
There is large amount of insoluble impurities in saccharified liquid and most is protein, which has poor filtering performance. Infusorial earth pre-coat vacuum rotary filter is used to remove the insoluble impurities in the sacchrified liquid. Since the cake on the infusorial earth surface is kept scratched so it is always at new condition, which makes the filtering of the syrup very fast and complete.
5、Ion exchanging purification
After the insoluble impurities and organic impurities in the saccharified are removed, there are still many inorganic impurities in the water, which exits as positive ion and anionic in the water, and they will be removed by ion exchange. The positive ion in saccharified liquid is exchanged with cation exchange resin H+, meanwhile the anionic is exchanged with the anion exchange resin OH-, at last, exchange the H+ with OH-, which turns out water, so all the inorganic impurities has been turned into water and removed.
Of course, the cation exchange resin and anion exchange resin should be regenerated by the acids and bases when the exchange capacity decreases, which keeps the exchange capacity of the ion exchange resin,
Vacuum concentration
Certain amount of the moisture in saccharified liquid is concentrated by multi-effects falling film evaporator after ion exchange to remove, and the concentration will increase from 30% to about 73%.
7、Cooling crystallization
After concentrating, the saccharified liquid enters horizontal cooling crystallizer; its cooling speed is controlled by adjusting cooler water flow rate. As the decreasing of the temperature, the glucose solubility decreases too, so the glucose can’t exist in water as syrup, part of it will separate out of the water as crystalline.
8、Centrifuge separating
Crystalline and liquor mixture enters separator, part of high purity glucose is left in the separator, dissolved glucose and some impurities is separated by the separator and become glucose mother liquor.
9、Drying
After separating, there is still 15% moisture in DMH, for reach standard, the moisture should be decreased below 9%. We will use air dryer or fluid bed dryer to dry DMH.
10、Packing
As per local market and customer requirements.
