Speaking of sweet potato leaves, it is really a salted fish that turns into a phoenix, from vegetables that can't be covered to very healthy ingredients. As the name implies, it is the leaf of sweet potato, which is native to tropical America. It was introduced to China in the Ming Dynasty, and was brought to Taiwan Province Province when the Dutch occupied Taiwan Province Province in the17th century. From the Japanese occupation period to the early recovery period, sweet potatoes and rice have always been staple foods, especially in poor families at that time, and sweet potatoes are often more than rice. Sweet potatoes are eaten by people. Of course, the stems and leaves of sweet potatoes cannot be wasted, so they are used by smart farmers to raise pigs. However, the sweet potato leaves we eat now are different. All of them are improved leaves specially produced by sweet potatoes, or the newly grown leaves with buds from edible sweet potatoes are big, tender and delicious. Sweet potato leaves have fewer pests and diseases, grow fast and are relatively cheap, so it is a very popular table dish.
Sweet potato leaves are extremely low in calories, but very nutritious. Per100g of sweet potato leaves, the calories are only 30 calories, the iron content is1.5mg, and the dietary fiber is 3. 1 g.. We eat its stems, leaves and buds, which are soft in texture, but can promote gastrointestinal peristalsis and defecate smoothly. It is rich in chlorophyll, vitamin B, vitamins A and C, and the content of minerals such as calcium and potassium is also extremely high. As long as 300 grams of sweet potato leaves are enough for us to absorb iron and vitamins A, C and E every day.
There are many varieties of sweet potato leaves, such as heart-shaped, round, triangular and lobed leaves. It can be planted and harvested almost all year round. April to 165438+ 10 is the rich season, and 65438+February to March is the poor season. Suburbs such as Taipei, New Taipei, Miaoli, Taichung, Changhua and Yunlin. Moreover, it is full of vitality, can be planted everywhere, can be picked at any time, and is easy to grow at home.
Choosing sweet potato leaves is very simple. Choose leaves that are complete, big and plump, fresh and tender, and do not wither. There is a layer of skin on its stem, which is usually very delicate and does not need to be torn off. If it is old, it should be removed, otherwise it will have a film and taste bad.
Because of the high iron content, it is easy to turn black when cooked, and children don't like it. In fact, there are some tips to prevent it from turning black! Quickly simmer and mix some garlic soy sauce, which is simple and delicious; Add some hot water to cook quickly when frying, and add some lemon juice to slow down oxidation, which will make the food look greener and more delicious!
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