Can purple sweet potatoes be boiled?

Nowadays, many people use some small household appliances to prepare healthy food. Even when drinking water every day, I would soak some wolfberries or chrysanthemums. Of course, some people also choose other ingredients, such as purple sweet potatoes. So, can purple sweet potatoes be boiled? Actually, it is possible. But everyone should note that soaking purple sweet potatoes in hot water is ineffective. It is best to use a kitchen appliance to cook them for a while.

Purple sweet potato is also called black sweet potato, and the flesh is purple to dark purple. In addition to the nutrients of ordinary sweet potatoes, it is also rich in selenium and anthocyanins. Purple sweet potato is one of the main raw materials of anthocyanins.

Purple sweet potato prefers a warm climate environment. The suitable growth temperature for stems and leaves is 18-25℃. It stops growing when the temperature is below 15℃. The optimum soil temperature for tuberous root growth is 22-24℃, and they stop expanding when the soil temperature is below 20℃.

In addition to the nutrients of ordinary sweet potatoes, it is also rich in selenium, iron and anthocyanins. It ranks first among anti-cancer vegetables published by the National Vegetable Cancer Research Center of Japan. In addition, purple sweet potatoes can be peeled, dried, crushed and processed into powder. They have beautiful color and rich nutrition. They are excellent food processing raw materials and can be used as the main ingredient or ingredient of various pastries. At the same time, purple sweet potato will also become one of the main raw materials of anthocyanins. From the tender leaves at the stem tip to the tubers, purple sweet potatoes have certain health functions and are one of the current pollution-free, green and organic foods.

The selenium and iron in purple sweet potatoes are necessary elements for the human body to resist fatigue, anti-aging, and blood tonic. Selenium, in particular, is known as the "king of anti-cancer" and is easily absorbed by the human body. It can remain in the serum, repair the myocardium, enhance the body's immunity, eliminate free radicals in the body, inhibit the synthesis of DNA in cancer cells and the division and growth of cancer cells, and prevent the occurrence of gastric cancer, liver cancer and other cancers.

Purple sweet potatoes are rich in cellulose, which can increase stool volume, promote gastrointestinal motility, clear mucus, gas and decayed matter retained in the intestinal cavity, excrete toxic substances and carcinogens in stool, maintain smooth bowel movements, improve the digestive tract environment, and prevent the occurrence of gastrointestinal diseases. In addition to the nutrients of ordinary sweet potatoes, it also contains polysaccharides, flavonoids, and is rich in selenium and anthocyanins. It has certain functions in preventing hypertension, alleviating liver dysfunction, and anti-cancer.