1. Clean up

清理玉米中含有各種塵芥、有機和無機雜質。為了保證生產和產品質量，對玉米中存在的雜質必須進行清理。清理玉米的方法，主要采用篩選、風選等。清理設備有振動篩、比重去石機、永磁滾筒和洗麥機等。

Cleaning corn contains all kinds of dust mustard, organic and inorganic impurities. In order to ensure safe production and product quality, impurities in corn must be cleaned up. The main methods of cleaning corn are screening and air separation. The cleaning equipment includes vibrating screen, specific gravity stone remover, permanent magnet drum and wheat washing machine.

2、浸泡

2. Soaking

玉米浸泡方法普遍采用金屬罐幾只或幾十只用管道連接組合起來，用水泵使浸泡水在各罐之間循環流動，逆流浸泡。

Corn soaking method generally uses several or dozens of metal tanks connected by pipes, and the soaking water circulates between the tanks by water pump, and then immerses in countercurrent.

3、玉米粗碎

3. Corn crunching

粗碎的目的主要是將浸泡后的玉米破成10塊以上的小塊，以便分離胚芽。

The main purpose of coarse crushing is to break the soaked corn into more than 10 pieces so as to separate the germ.

玉米粗碎大都采用盤式破碎機。粗碎可分兩次進行。次把玉米破碎到4~6塊，進行胚芽分離；第二次再破碎到10塊以上，使胚芽全部脫落，進行第二次胚芽分離。

The disc crusher is mostly used in corn coarse crushing. Coarse crushing can be carried out twice. For the first time, the corn was broken into 4 ~ 6 pieces for germ separation; for the second time, it was broken to more than 10 pieces to make all the germs fall off, and the second time was to separate the germ.

4、胚芽分離

4. Germ separation

目前國內胚芽分離主要是使用胚芽分離槽。優點是操作比較穩定，缺點是占地面積大，耗用鋼材多，分離效率低，一般不超過85%。

At present, germ separation trough is mainly used in China. The advantages are relatively stable operation, but the disadvantages are large floor area, large steel consumption and low separation efficiency, generally less than 85%.

5、玉米磨碎

5. Corn grinding

經過分離胚芽后的玉米碎塊和部分淀粉的混合物，為了提取淀粉，必須進行磨碎，破壞玉米細胞細胞，游離淀粉顆粒，使纖維和麩皮分開。

In order to extract starch, it is necessary to grind the mixture of corn fragments and part of starch after separation of germ, so as to destroy corn cell cells and free starch granules, so as to separate fiber from bran.

6、淀粉篩分

6. Starch screening

玉米碎塊經過磨碎后，得到玉米糊，可以采用篩分的方法將淀粉和粗細渣分開。常用的篩分設備有六角篩、平搖篩、曲篩和離心篩等。

After the corn fragments are ground, the corn paste can be obtained. The starch and the coarse and fine residues can be separated by sieving method. The commonly used screening equipment includes hexagonal screen, flat shaking screen, curved screen and centrifugal screen.

玉米淀粉有以下用途：

Corn starch has the following uses:

1、玉米淀粉與水或牛奶混合后有獨特的外觀和質感，常用來摻在白糖粉作為抗粘結劑。

1. Corn starch mixed with water or milk has a unique appearance and texture, which is often used as an anti binder in sugar powder.

2、玉米淀粉常用作布丁等食品的凝固劑。利用雙層蒸鍋，以牛奶、砂糖、玉米粉和增香劑等配料就可輕易制作出簡單的玉米粉布丁。

2. Corn starch is often used as coagulant in food such as butin. A simple corn flour pudding can be easily made with milk, sugar, corn flour and flavoring agent in a double steamer.

3、玉米淀粉也在菜和法國菜里用作增稠劑。菜里的“勾芡”，一般就是用玉米淀粉加上水制成的。

3. Corn starch is also used as a thickener in Chinese and French dishes. The "thicken" in Chinese cuisine is usually made of corn starch and water.

玉米淀粉制得玉米面的營養價值：

The nutritional value of corn flour made from corn starch is as follows

1、玉米面中含有亞油酸和維生素E，能使人體內膽固醇水平降低，從而減少動脈硬化的發生。

1. Corn flour contains linoleic acid and vitamin E, can reduce the level of cholesterol in the human body, thereby reducing the occurrence of atherosclerosis.

2、玉米面中含鈣、鐵質較多，可防止高血壓、冠心病。

2. Corn flour contains more calcium and iron, which can prevent hypertension and coronary heart disease.

3、粗磨的玉米面中含有大量的賴氨酸，可抑制腫瘤生長。

3. Coarse ground corn flour contains a lot of lysine, which can inhibit tumor growth.

4、玉米面含有微量元素硒，硒能加速人體內的氧化物分解，抑制惡性腫瘤

4. Corn flour contains trace element selenium, which can accelerate the decomposition of oxides in human body and inhibit malignant tumor

5、玉米面中豐富的膳食纖維，能縮短食物通過消化道的時間，減少有毒物質的吸收和致癌物質對結腸的刺激，因而可減少結腸癌的發生。

5. The rich dietary fiber in corn flour can shorten the time of food passing through the digestive tract, reduce the absorption of toxic substances and the stimulation of carcinogens to the colon, thus reducing the occurrence of colon cancer.