There is a vegetable that is only available in March of the year, that is, toon, it can be said that the taste buds of spring are given by toon, as the saying goes: Yangchun March food toon. Toon is a unique flavor, and the nutritional value is also quite high, rich in potassium, calcium, magnesium, vitamin B vegetables, in addition to its unique taste, it is also one of the few vegetables that grow on the tree, but although the toon is delicious, remember not to be greedy.
The nutritional value of toon
Although the price of toons varies across the country, but generally belongs to the "noble" family in vegetables, usually sold in weight units such as "grams", toons are expensive, is not entirely hype, according to legend, during the Han Dynasty, toons were once used as tribute to the tribute palace, Su Shi also praised "Tsubaki wood solid and leaf fragrant can be". Toon contains volatile aromatic organic compounds and contains a large amount of dietary fiber, which can promote gastrointestinal peristalsis, have the effect of strengthening the spleen and appetizing, increasing appetite, and improving indigestion. Toon has its own fragrance, and the smell can also be repellent.
Precautions for consuming toon
Although toons are very popular with the public, there are some places to be aware of.
First of all, toons belong to hair, some people with chronic diseases and old diseases should eat less, pregnant women and diabetics should also control the consumption of toon.
Secondly, the content of nitrate and nitrite in toons is higher than that of ordinary vegetables, and excessive consumption of nitrates and nitrites by the human body may cause dizziness, nausea and other symptoms, and at the same time, nitrite may also be converted into carcinogenic nitrosamines.
Finally, toons also contain a certain amount of oxalic acid, which will affect the absorption of calcium and the taste is astringent.
Therefore, when we choose to eat toon, we must pay attention to the following points:
First, the choice of toon: choose fresh and tender toon, the more tender the bud, the less nitrate. Therefore, it is safe to eat the buds freshly picked from the tree immediately, but if the leaves dry up and lose water after long-distance transportation, the nitrite content will increase significantly.
Second, the cooking method of toon: whether it is prepared to eat cold, stir-fried or pickled, before this, we need to blanch the toon with boiling water for 30 seconds to 1 minute before eating, because the water blanched toon, can remove more than 2/3 of nitrite and oxalic acid, the content of nitrite will be significantly reduced, and lower than the national standard limit of 20mg/kg, so toon blanching with boiling water can remove the nitrite and oxalic acid, even if you want to freeze preservation, it is recommended to blanch the toon first, Refrigerate in aliquots.
How to make toon scrambled eggs: first pick and wash the toons and chop them into finely chopped. Crush the eggs into the chopped toon, add salt and stir well. Put oil in the pan, pour in the egg liquid and stir-fry quickly, stir-fry until the egg liquid is formed.