Potatoes can be preserved by cutting them, putting them into fresh-keeping bags and refrigerating them in the refrigerator, or soaking them in water and refrigerating them in the refrigerator.

When potatoes are soaked, you can add a little vinegar to the water, which can not only effectively prevent browning, but also keep the potato crisp and refreshing, and will not reduce the loss of vitamins and minerals in potatoes. But potatoes should not be soaked in water for too long, otherwise the taste and nutrition will be greatly reduced. At the same time, there are many ways to eat potatoes, such as steaming, boiling, frying and frying.

The discoloration of cut potatoes is caused by oxidation. Potatoes contain a lot of enzymes, which will react with oxygen in the air and change color, so generally cut potatoes need to be immersed in water to prevent discoloration. There are three main conditions for browning: polyphenols, polyphenol oxidase and oxygen. After peeling potatoes, they are exposed to the air, and the polyphenols in them react with oxygen, and then they are further oxidized and polymerized to form brown pigments and melanin.

Potato knowledge popularization

Potato, also called potato, yam egg, ground egg, potato, Dutch potato, etc., is a young orange annual herb of Solanaceae. The stems on the ground are rhombic and hairy. The leaves are simple when they are born, and gradually grow into odd and unequal pinnate compound leaves, alternating in size and oval to oblong; The corymb grows at the top, and the flowers are white or blue-purple; The fruit is a berry; Tubers oblate or spherical, glabrous or puberulent; Potato skin is white, reddish or purple; Potato meat has white, light yellow, yellow and other colors; Flowering in summer.

Potatoes originated in South America, and spread to India in the 10th and 6th century, and then to China, and now they are cultivated in most areas. Potato likes cold, cool and dry climate, and has strong adaptability. Loose and fertile sandy soil is suitable, with short growth period and high yield. Because seed propagation will lead to character separation, the most common propagation method of potato is asexual tuber propagation.

The above contents refer to Baidu Encyclopedia-Potato