Is purple potato a sweet potato?

Because we are not professional students of biology, we don’t understand the properties of various plants. Many plants have their own categories. For example, the purple sweet potato that everyone is familiar with is a kind of food belonging to the genus Ipomoea batatas under the Convolvulaceae family. In fact, the question that people are most curious about is: Is purple sweet potato a sweet potato? Actually, yes. Purple potatoes and sweet potatoes are the same type, just different varieties.

Compared with sweet potatoes, purple sweet potatoes only contain two more things: anthocyanins and selenium. The element selenium is found in fungi, meat, etc., and the human body's daily demand is not large. Anthocyanins are contained in many purple and black foods, but purple potatoes are twice as expensive as sweet potatoes. If you just want to eat it, there are more choices of sweet potatoes.

1. Purple sweet potatoes and sweet potatoes are different in color. Purple sweet potatoes are purple and sweet potatoes are yellow.

2. The nutritional value of purple sweet potatoes and sweet potatoes is different. Purple sweet potatoes have high nutritional value. Purple sweet potatoes are rich in selenium and anthocyanins. Selenium is an anti-cancer substance, and anthocyanin is an organic active antioxidant that can fight cancer and prevent aging.

3. The sugar content of purple sweet potatoes and sweet potatoes is different. Sweet potatoes have a high sugar content and are very sweet. Because of the high sugar content, the roasted sweet potatoes taste sweeter, making the roasted sweet potatoes fragrant and exuding a charming burnt aroma.

Additional information:

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℃.

The fruit of sweet potato is the same as that of morning glory, which is a round or flat capsule with a diameter of 5-7 mm. The skin is green or purple when immature and turns withered yellow or brown when ripe.