Don’t worry, there are no chemicals.
Purple potatoes are rich in anthocyanins, and one characteristic of anthocyanins is that they turn blue when exposed to alkali, red when exposed to acid, and purple in their neutral state.
The reason why purple potatoes turn blue when cooked is because the water used to cook them is alkaline. The company’s main goal is to provide the best possible service to its customers.
In fact, anthocyanins are water-soluble natural pigments, and many of the major coloring substances in fruits, vegetables and flowers are related to anthocyanins.
Usually, if you see red, blue, or purple plants, fruits, or grains they all contain anthocyanins. In addition to purple potatoes in everyday foods, grapes, blood oranges, blueberries, eggplant, cherries, cranberries, strawberries, mulberries, hawthorn, and other foods contain anthocyanins.
Anthocyanins have strong antioxidant properties, which according to research are 50 times higher than vitamin E and 20 times higher than vitamin C, and have a strong ability to scavenge free radicals.
In fact, the color change of purple potatoes not only does not contain artificially added ingredients, and the human body has many benefits, the first is the purple potatoes within the plant pigment contains a large amount of carotene, carotene itself in addition to antioxidant effect, in the body can also be converted into vitamin A to prevent vitamin A deficiency, while the plant pigment contains anthocyanins can prevent oxidative stress damage, reduce the body’s inflammatory response The darker the color, the better for the body, while purple potatoes also contain a large amount of dietary fiber (2.2g/100g), modern people due to the refinement of diet, the general lack of dietary fiber, the daily intake of half a pound of purple potatoes, you can consume about 5g of dietary fiber, can significantly improve the human dietary fiber deficiency phenomenon, especially for the relief of constipation, weight loss and improve insulin resistance has a certain role.
Because purple potatoes contain a certain amount of starchy substances, and starchy substances in the body can produce energy, so purple potatoes food should not be consumed in large quantities, otherwise it can also lead to obesity, especially for diabetic patients, when eating purple potatoes, to deduct energy from the rice and noodle staple food, 100g purple potatoes can produce about 57 kcal of energy, so every 100g of purple potatoes need to deduct 15g about rice and flour.