The purple sweet potato is also called black potato, and the English name is PurplePotato. The potato meat is purple to dark purple. In addition to the nutrient components of ordinary sweet potatoes, it is also rich in selenium and anthocyanins. In recent years, purple sweet potatoes have become popular in the international and domestic markets, and their development prospects are very broad. Is the purple sweet potato really higher in nutritional value than ordinary sweet potato?
First, guide experts: purple sweet potato than sweet potato is anthocyanin
Dietitians pointed out that compared with common sweet potatoes and sweet potatoes, purple sweet potatoes have little difference in protein and sugar, and the only difference is his color. The purple color of purple potatoes is mainly due to the "anthocyanin" they contain.
If we say that purple sweet potato has its unique nutritional value, then it belongs to the "anthocyanins" it has. Research shows that anthocyanins are a class of antioxidants that can help the body deal with free radicals (many evidence suggests that free radicals can It causes oxidative damage to fats, proteins and nucleic acids and is an important cause of diseases such as cancer, cardiovascular diseases and neurological diseases.)
Anthocyanins are a large class of substances that are widely present in all dark red, purple or blue fruits and vegetables such as grapes, blackberries, figs, cherries, eggplants, purple sweet potatoes, blueberries, cranberries, strawberries, mulberries, hawthorn , Perilla, black (red) rice and other plant tissues.
Second, do not blindly pursue the health benefits of eating purple potatoes
In recent years, many claims that eating "deep-colored" foods, such as purple sweet potatoes, purple cabbage, black rice, and looking fruits such as blueberry blackberries, are related to their inclusion of different degrees of anthocyanins.
Smart merchants also spotted the concept market of "anthocyanin" and withdrew all kinds of healthy foods rich in "anthocyanin" to attract consumers.
Here, it is to be reminded that balancing the diet and pursuing a wide variety of diets are always the principles of a healthy diet. The general public should not think that certain foods have a health-care effect. They just eat this kind of food in order to achieve the disease prevention and treatment effect. Food is food, each has its own strengths and advantages, and it contains various nutrients that the body needs. Therefore, in the face of the "conceptual marketing" of businesses, the public should objectively and calmly understand.
In addition, no matter what kind of potato, eat more will flatulence acid. Due to the high starch content of potato, especially sweet potato, it is not recommended to cook by deep-fried or sweetened so as not to bring too much energy to the body. Purple sweet potato because of the taste than the sand, can be diced and rice boiled together into porridge, or steamed boiled mud and flour into a potato cake.