Spring is coming, with wild vegetables.
Every year in March and April, whether it is the chrysanthemum brain egg soup in Nanjing, the grass head circle in Shanghai, or the fried rice cake with cabbage in Ningbo, or the dried mixed marantou that makes the whole of Jiangnan popular.
After the sting, the toon, with its own rich flavor, traveled from the Central Plains to North China, with wild vegetables traveling through the north and south of the river.
It is also because of the delicious taste of wild vegetables that many people carry small shovels for digging vegetables, sharpen knives, small shovels in their left hands, and plastic bags in their right hands, and can't wait to rush to every "base" where wild vegetables may grow.
What is the edible value of wild vegetables in spring?
1. Dandelion
Dandelion is very rich in vitamin a, vitamin C, vitamin b1, b2 and vitamin B6, as well as folic acid, potassium, protein, pectin, choline and inulin and other nutrients.
For human health, these nutrients can play a series of effects such as swelling reduction, loosening, sterilization, anti-inflammatory, and heat removal.
Especially for bacteria such as E. coli and Staphylococcus aureus, some intestinal inflammatory infections caused by them have a very good adjuvant therapeutic effect.
In addition, dandelions have a particularly good conditioning effect on bronchitis, pneumonia, breast hyperplasia, thyroid nodules and other problems.
2. Cabbage
It is particularly rich in vitamin B, vitamin C, vitamin E, as well as carotene, dietary fiber, calcium, iron and protein, etc., these nutrients have a very good eye and spleen, hemostasis and water and a series of effects.
It is also particularly rich in dietary fiber, which is used to enhance intestinal peristalsis and promote the body's metabolism.
Especially for some people with intestinal diseases, hemorrhoids, hypertension, coronary heart disease, diabetes and other people, eating some cabbage appropriately can play an auxiliary role in treating the disease.
3. Purslane
Purslane has a series of functions such as cooling blood and stopping bleeding, detoxification and detoxification, sterilization and anti-inflammatory, as well as lowering blood pressure, lowering blood sugar, dampness and swelling.
Purslane is also known as a natural antibiotic, and has a particularly strong inhibitory effect on staphylococcus aureus and dysentery bacteria, as well as E. coli and other bacteria.
4. Bracken
Bracken is a very common vegetable that can be used for cold mixing, stir-frying, and can also be paired with meat to make some delicacies, and the taste is very good.
And bracken is very rich in vitamins, sugars, organic acids, and protein and other nutrients.
These nutrients can play a series of effects such as heat and detoxification, anti-inflammatory sterilization, diuretic and antidiarrheal, intestinal detoxification, etc., and also have the effect of lowering blood pressure.
In addition to these 4 kinds of wild vegetables, bitter vegetables, water celery, platycodon, small root garlic, houttuynia cordata, plantain, these wild vegetables have good edible and medicinal value, and can be appropriately combined with their own physique.
Although wild vegetables are good, the doctor advises you not to pick them indiscriminately
Many people pick wild vegetables, not only to follow the taste of spring, but also to think that they are natural and pollution-free, green and healthy.
But in fact, the truth is cruel.
According to a 2020 survey report on the heavy metal content of wild vegetables in Beijing: the heavy metal content of wild vegetables in parks, mountains, residential areas and roads in Beijing exceeded the standard, not only exceeding the safety range of pollution-free vegetables, but also exceeding the limit of food contaminants.
Perhaps you will not understand, these wild vegetables are natural wild, why are there more than standards?
You know, the place where these wild vegetables live is not "wild", for example, the vegetation greening of the park often requires the use of pesticides to kill insect pests and weeds.
In addition, these maintenance is not aimed at eating, so the use of herbicides and pesticides is more casual, resulting in a much higher residue.
Not to mention the suburbs, chemical plants and highways are basically in the suburbs, and the wastewater discharged by chemical plants and exhaust gases emitted by cars will cause heavy metals in the soil to exceed the standard.
Therefore, these problems can not only be seen with the naked eye, but also have no regulatory control, so the growth environment of this wild vegetable cannot be guaranteed.
Do you really want to eat wild vegetables?
Don't worry, we are Chinese with a lot of vegetable growing skills, whether it is toon, cabbage, or goji berry head, maran head, etc., these are like other common vegetables, large-scale artificial cultivation methods.
So, remind you foodies that it is okay to walk in the spring, but don't pick wild vegetables!
bibliography:
[1] Lou Yiyang, Lou Ye. (2020). Determination of heavy metal content of common wild vegetables in Beijing by inductively coupled plasma mass spectrometry (ICP-MS). Metrology and Test Technology, 47(7), 76-79. doi:10.15988/j.cnki.1004-6941.2020.7.026
[2] Ministry of Land and Resources, Ministry of Environmental Protection. (2014). National Soil Pollution Survey Communiqué.