As one of the three staple foods in China, corn is the staple food with the highest yield, and it is planted in many parts of the country. It can be eaten as fruit corn, coarse grains and corn starch, made into corn steamed bread, and processed into snacks such as popcorn.

Of course, corn can also be processed to extract ethanol and gasoline, and it can also be used as feed.

Every autumn, after corn is harvested, farmers thresh it. At present, many machines are used for threshing, and most of the threshed corncobs are dried by farmers as firewood, mushroom culture medium or feed.

However, it is this kind of corn cob discarded by farmers everywhere that has become a Korean delicacy. Almost every supermarket will sell it, and the retail price is 2 yuan RMB, which is incredible. You know, there is only one fruit corn for 3 yuan, so why can worthless corn cob sell for so much money?

0 1, the value of corn cob

As a high-protein crop, corn is also a very important food in the world. I'm covered in treasures. In addition to corn kernels, corn stigma can also be soaked in water to taste, which can play the role of diuresis and heat clearing, and has a significant effect on the three high people.

In fact, seemingly insignificant corncob also has very high nutritional value, in which crude protein content accounts for 2-6%, crude fat accounts for 0.5%, and crude fiber accounts for 33. 1%.

In addition, it also contains mineral elements such as calcium, iron, magnesium and potassium, which is of great help to promote human metabolism.

In rural areas, corncob is most commonly used in mushroom production. Because it is rich in mineral components, it can cultivate fungi such as auricularia auricula, Agrocybe aegerita and Hericium erinaceus.

The sugar content in corncob accounts for 50%, so xylitol and maltose can be extracted after hydrolysis. The former can play the role of beautifying and lowering blood pressure, which is good for diabetic patients. It can also be added to chewing gum to avoid tooth decay.

The content of cellulose and lignin in corncob is also high, and these components are easy to degrade, so it can be made into new environmentally friendly tableware to reduce the damage of plastic products to the environment and human body.

Because corncob has strong wear resistance and good toughness, it is also used as one of the raw materials for manufacturing tires, thus increasing friction and prolonging tire life.

At the same time, the sole made of corncob is more wear-resistant.

Of course, corncob has a very strong adsorption capacity, so it can adsorb dust, dander and so on. And no residue will hurt clothes, so it is very popular in the market.

Of course, plant ash after burning corncob can also be used as a lubricant, which can lubricate the machine and remove oil stains.

Corn cob can also be used to make wine. Under normal circumstances, 100 kg corn cob can brew 25 kg liquor, and its liquor degree can reach 50 degrees.

Of course, corncob can also be used to make paper, and the paper processed with it is more wear-resistant.

02. Become a Korean delicacy.

In China, corncob is most commonly used in feed processing, but in South Korea, it has become a delicacy.

Therefore, many businessmen collect corncob and export it to Korea.

It is reported that the export price of corn cob can reach 300- 1000 yuan/ton, which has created 4 billion foreign exchange income for Shandong people so far.

In Korean supermarkets, a pack of five corn cobs costs 2000 won, which is 10 RMB, and one corn cob is 2 yuan.

If it was in China, people never thought that such a humble corn cob could be sold to 2 yuan.

But in Korea, it is already a very cheap thing, and because of its rich nutrition, corncob is deeply loved by Koreans.

You know, South Korea has a small land area, so it is difficult to carry out large-scale agricultural production. There is a shortage of fresh ingredients, and the prices of agricultural and sideline products in supermarkets are high. For example, watermelon needs 150 yuan, cabbage needs 50 yuan, the price of an apple exceeds 10 yuan, and the price of a corn is 18 yuan.

In contrast, corncob is really much cheaper and is deeply loved by the bottom people.

So, what kind of food is corn cob made by Koreans?

1, make tea

Koreans like to drink corncob tea and regard it as a daily essential drink. They will cut the bought corncob into pieces and boil it in water for 30 minutes, so that they can make tea and taste it, which can reduce fire and relieve eye fatigue.

Step 2 cook porridge

In some supermarkets, corncob is processed into granules so that people can buy cooked porridge.

Koreans will cook it with rice. In their view, corncob porridge can lower cholesterol, beautify and lower blood pressure.

Step 3 cook soup

In China, many people like to cook soup with corn, while in Korea, corncob has also become an essential ingredient for cooking soup, which can make the soup fragrant and delicious.

4. Outdoor barbecue

On the streets of Korea, roasted corn is also a great food. They will roast corn cob on the stove and add pepper and cumin to enhance the taste, so it becomes a delicious food and many people queue up to buy it.

Maybe it is not delicious in China, but it is rare in Han Min's eyes.

Due to the lack of agriculture in South Korea, corncob is difficult to meet the needs of more than 50 million people in the country, so it can only be imported from China in large quantities. Shandong people discovered this business opportunity, and then started to build factories to process corncobs and export them to South Korea, thus creating an output value of 4 billion. What do you think of this?