Precautions for eating green beans When eating green beans, you must cook green beans, otherwise you are prone to nausea and vomiting, abdominal pain and diarrhea, dizziness and chest tightness, and even numbness of limbs and cold sweat. This is a phenomenon of food poisoning. Because undercooked green beans contain an alkaloid-saponin, this substance usually exists in the skin of green beans. Saponins not only stimulate the heart, but also stimulate the digestive tract mucosa to cause local congestion and swelling of the stomach and intestines. In addition, saponin is a strong hemolytic agent, because it can destroy red blood cells and make hemoglobin overflow, which is very dangerous. Generally, the incidence of green bean food poisoning may be in tens of minutes or hours. Once found, you must go to the hospital for professional treatment, which cannot be ignored.
The collocation of green beans Whether fried or stewed, green beans are delicious. The ancients paid attention to the symmetry of yin and yang, and believed that nature was mutually reinforcing and complementary. This theory also played a full role in the collocation of food. It is best not to mix green beans with vinegar, because vinegar will reduce the nutritional value of green beans; Green beans can't be fried with carrots. If they eat a certain amount together, it will lead to diarrhea. The combination of green beans and mushrooms can enhance vision, so it is most suitable for the elderly and children.
As a vegetable, green beans have many practices. Next, I will introduce several delicious practices for you.
1, dry stir-fried green beans: the outer coke of the beans is tender and crisp and delicious, with a touch of pepper aroma, which makes people feel appetizing. The ingredients needed are green beans, minced meat, peppers, garlic, ginger, salt, soy sauce and sugar. First of all, the green beans should be oiled. When the surface is dehydrated and wrinkled, remove the oil immediately, then add garlic and ginger to stir fry, then add the oiled green beans to stir fry, and add minced meat and pepper. When the green beans are cooked and the fragrance is overflowing, you can get out of the pot.
2, cold green beans: in the hot summer, everyone is easy to lose appetite, and a plate of cold green beans drives away the loss of appetite, which makes people appetite. The ingredients needed are green beans, peppers, garlic, salt and soy sauce. Boil green beans in water, take them out and soak them in ice water, heat oil, take out peppers and garlic in oil, then add salt and soy sauce to make cold sauce, take them out of ice water and dry them, then add cold sauce to eat.
How to choose green beans We try to buy fresh and tender green beans, because the longer they are stored, the more saponins they will contain. Simply put, the older the green beans, the more saponins they will contain. So what skills do you have in choosing green beans? Generally, you have to look at them and pinch them. It depends on the skin of green beans. If brown spots appear on the skin, it means that the taste of green beans is not good. If the appearance is yellow, it means that green beans are dehydrated and fibrotic, and their taste and taste are not good. The skin should be light green and smooth to be a good green bean. Pinch is to feel whether the pods are full and fat, which means that the green beans are fresh and tender.
How to preserve the fast-paced life of green beans nowadays? Many families buy vegetables not on the same day, but mostly for a few days or even a week at a time, so how to preserve the green beans they bought? If there are water drops on the surface of the bought green beans, they should be absorbed by paper and then stored in a cool and ventilated place, so that they can be stored for two to three days. You can also wrap the green beans with plastic film and put them in the fresh-keeping room of the refrigerator. If you want to preserve the green beans for a longer period of time, wash them and blanch them with salt water. Be sure to drain the water and put them in a fresh-keeping box and freeze them in the refrigerator. This way, the freshness and color of the green beans can be preserved, and the frozen green beans will not stick together. When you want to eat them, you can take them out and thaw them. You can add your favorite cold salad to become a cold salad.
Nutritional value of green beans 1, green beans contain potassium, which also plays an important role in the human body. Potassium is a mineral that can eliminate floating meat in the body, which can help balance the sodium in the body. If there is too little potassium in the body, it will cause the imbalance of sodium and potassium in the body. Excess sodium will divert water, causing cell edema, making it more obvious that the weight will not come down. However, if the intake of potassium ions is sufficient, sodium ions will not retain excess water. Therefore, eating green beans can eliminate edema and improve floating meat.
2. Green beans contain a lot of insoluble crude fiber, which can not only promote intestinal peristalsis, but also speed up the passage of food through the gastrointestinal tract, thus reducing absorption; In addition, insoluble crude fiber absorbs water in the large intestine to soften feces, which is beneficial to defecation and prevention of hemorrhoids.
3. Green beans are rich in inorganic salts, which are one of the six major nutrients. Inorganic salts are also very important for children's growth and development. Inorganic salts can also maintain the acid-base balance in the body, which is conducive to promoting human metabolism.
4. Green beans contain fat-soluble vitamin-vitamin K. Vitamin K is not only a clotting vitamin, but also an indispensable vitamin in bone metabolism. Vitamin K participates in the synthesis of a protein, and this protein can only be synthesized by vitamin K, so it is called vitamin K-dependent protein. This protein can regulate the synthesis of calcium phosphate in bones, so vitamin K can maintain normal bone density, so the elderly can prevent osteoporosis by eating green beans regularly.
Can pregnant women eat green beans? Women's pregnancy in October is a very hard thing, which needs to be treated with care, not only to change some small habits in life, but also to pay attention to various details. The diet and nutrition of pregnant women should be balanced to keep up with the needs. Green beans are rich in nutritional value and one of the nutrients that pregnant women need. The fiber in green beans can help pregnant women prevent constipation, but the green beans eaten by pregnant women must be cooked at high temperature, which is very important. However, many nutrients in green beans can also be obtained from other foods. Can you eat other foods or other foods?
When buying green beans, don't choose old green beans that have been placed for too long, because there are more toxins in green beans and the probability of poisoning after eating them is greater. When processing green beans, the toxin level of green beans will be reduced by removing both ends and bean tendons containing more toxins, and then cooking them at high temperature.