What kind of plant is asparagus? Maybe many people don't know what asparagus is. In fact, it is a vegetable with high nutritional value and rich trace primary colors needed by human body. But many people don't know asparagus. What kind of plant is asparagus?

What kind of plant is asparagus? 1 asparagus is a fibrous root plant, which consists of fleshy storage roots and fibrous absorption roots. The fleshy storage roots are produced by underground rhizomes, and most of them are distributed in the soil layer 30 cm above the surface. Its life span is very long, and it can continuously extend forward every year, generally reaching about 2 meters. As long as it does not destroy the growing point, it plays the role of fixing plants and storing stems and leaves to absorb nutrients.

Hair-like absorption roots have a short life span and will shrink at any time under unfavorable conditions such as high temperature, drought, soil salinization or acid-base discomfort, too much water and insufficient air.

Asparagus stems are divided into underground rhizomes, scale buds and aboveground stems. Underground rhizomes are short and deformed stems that grow horizontally. When the branches are dense, new branches grow upward and make the root disk rise.

The fleshy storage root is planted on the rhizome, which has many nodes, and the buds on the nodes are wrapped by scales, so it is called scale buds. The scale buds at the top of the rhizome cluster to form a group of scale buds, which germinate to form bulb product organs or aboveground plants. The aboveground stems are fleshy stems, and the tender stems are products.

Characteristics of asparagus

Asparagus leaves can be divided into true leaves and jia ye. True leaves are degenerated leaves, which are attached to the nodes of aboveground stems and show triangular membranous scales. Jia ye is a kind of deformed branch, clustered and needle-shaped. Every 1 ~ 4 flowers are axillary, green and yellow.

The perianth of the male flower is 5 ~ 6 mm long, and the lower part of the filament is attached to the perianth piece. The female flower is smaller and the perianth is about 3 mm long. Berry is 7 ~ 8 mm in diameter, red when ripe, and has 2 ~ 3 seeds. The flowering period is May-June, and the fruiting period is 9-65438+1October.

Asparagus is a dioecious plant, and the characteristics of male and female plants are very different, and most of them are cultivated male plants in production. Male plants are short, with many branches, early flowering, many stems and small single weight of young stems, but with high yield and long harvest period. Female plants are tall, with sparse branches, late flowering, few stems and thick young stems, and the total output is slightly lower.

Asparagus enjoys the reputation of "the king of vegetables" in the international market. It is rich in amino acids, protein and vitamins, and its content is higher than that of common fruits and vegetables, especially trace elements such as selenium, molybdenum, chromium and manganese in asparagine and asparagus. It has the functions of regulating metabolism and improving immunity, and has strong inhibitory and pharmacological effects on preventing and treating hypertension, heart disease, leukemia, hematological tumor, edema and cystitis.

What is asparagus? 2. The efficacy and function of asparagus.

Asparagus is one of the top ten famous dishes in the world, which has high nutritional value and is known as the "king of vegetables". The unearthed white bamboo shoots are called white bamboo shoots, and the unearthed green bamboo shoots are called green bamboo shoots. Even if the place of origin is different, no matter which asparagus variety is irradiated in the sun, it will become green asparagus. If it is buried in the soil or protected from light, it will turn white. The flowering period is May-June, and the fruiting period is 9-65438+1October.

Asparagus is rich in protein, vitamins, minerals and trace elements needed by human body. It is rich in trace element selenium. Its components, such as tissue protein and asparagine, can promote the normal growth of cells and inhibit cancer cells to some extent. Therefore, it is considered to be a high-nutrient anticancer food.

Efficacy and function of asparagus: asparagus is cool, sweet and bitter. Traditional Chinese medicine believes that it has the functions of clearing heat and diuresis, moistening lung and relieving cough, eliminating phlegm and killing insects.

1. Asparagus is low in sugar, fat, cellulose and trace elements, and has the functions of reducing blood fat and losing weight.

2. Rich in selenium and asparagine can effectively remove all kinds of harmful free radicals produced in the body, inhibit the activity of carcinogens, prevent the division and growth of cancer cells, and have the function of preventing cancer.

3, rich in vitamins and cellulose, can get rid of greasy and promote defecation. .

4, folic acid content is rich, for pregnant women, eating asparagus can promote fetal brain development.

5, containing rutin, vitamin C and so on. It can lower blood pressure, soften blood vessels and absorb less cholesterol. Can be used as adjuvant therapeutic food for patients with coronary heart disease and hypertension.

6, clearing heat and diuresis is good for people who are prone to get angry.

Precautions for eating asparagus

1, patients with gastric ulcer and severe enteritis are not suitable.

2, high purine food, gout patients should not eat more.

3. People who are allergic to asparagus are not suitable.

4, do not eat with zucchini, because both are cold ingredients, which may cause symptoms of spleen and stomach discomfort.

5, it is best not to eat raw.

In addition, it is to buy and eat now, and it is best not to store it for too long to prevent the loss of nutrients.

The practice of asparagus

1. Remove old roots, peel and wash fresh asparagus;

2. Split asparagus and cut it into sections;

3. Blanch asparagus with boiling water, put oil in the pot, and simmer onion and ginger;

4, cooking wine, add soup, salt, sugar, monosodium glutamate, put asparagus in the pot;

5. After boiling, thicken with water starch, drizzle with sesame oil, and take out the pot.

Characteristics of asparagus

1, family and genus

Liliaceae, asparagus

2. Country of origin

China, German, French, Spanish, American, Japanese.

3. Alias

Bamboo shoots, asparagus and exposed bamboo shoots.

Step 4 introduce

Asparagus, the scientific name of asparagus, is a spring vegetable and a perennial flowering plant. Like its cousins leeks, onions and garlic, it was once classified as Liliaceae. However, Liliaceae has been differentiated, and this onion plant is now classified as Lycoris and Asparagus (Asparagus) of Asparagaceae.

Nutritional value of asparagus

According to modern nutritional analysis, asparagus protein contains all kinds of amino acids necessary for human body, and the content ratio is appropriate. Inorganic salts contain selenium, molybdenum, magnesium, manganese and other trace elements, as well as a large number of non-protein nitrogen-containing substances and aspartic acid with asparagine as the main body.

Regular consumption has certain curative effect on heart disease, hypertension, tachycardia, fatigue, edema, cystitis, dysuria and other diseases. Meanwhile, asparagus is beneficial to cardiovascular diseases, angiosclerosis, nephritis, gallstones, liver dysfunction and obesity.

At the same time, asparagus contains a variety of vitamins and trace elements, and its quality is better than that of ordinary vegetables. Nutritionists and vegetarians agree that it is a healthy food and a comprehensive anti-cancer food. Asparagus is effective in treating lymphoadenocarcinoma, bladder cancer, lung cancer, kidney calculi's disease and skin cancer. It also has a good curative effect on other cancers and leukemia.

The benefits of eating asparagus

1, improving human immunity

Asparagus can inhibit the growth of abnormal cells, and biochemical experts believe that asparagus is the guardian of "making cells grow normally". Mannan contained in asparagus can improve human immunity; The asparagine contained in it can enhance the immunity of the body and is a detergent for the kidney.

2. Dry health and cancer prevention

Asparagus is a common vegetable, which is rich in various nutrients and has good pharmacological effects on the prevention and treatment of many diseases.

Steroid saponins in asparagus are the main substances showing their biological activities. At present, there are 19 saponins isolated from asparagus. It is reported that several saponin monomers play an important role in tumor prevention and treatment, so regular consumption of asparagus has a certain effect on preventing various tumors.

3, promoting digestion is conducive to weight loss.

Asparagus is low in calories and can be used to lose weight. Asparagus can promote gastrointestinal peristalsis, eliminate toxins, help digestion and increase appetite. Regular consumption of asparagus is very effective in relieving obesity.

The best time to eat asparagus

summer

How to buy asparagus

Look at the freshness

No matter what kind of asparagus it is, "freshness" is the most important thing when purchasing. The whole plant is characterized by tall and straight appearance, fresh and tender stems, delicate texture, no awning, no axillary buds, no water stains, no rancid smell, bright skin and no shrinkage. In particular, it should be noted that the scales of bamboo shoots are tightly folded, and no shrinkage means that fresh asparagus is better, otherwise it will not be fresh.

At the same time, asparagus can be broken with both hands, crisp and easy to break, and bamboo shoots are tender and silky, otherwise they are not tender. In addition, the harvested white stems at the base are hard, aging or even lignified, and the taste is poor, so it is better to choose the ones with less white stems at the base.

The newly harvested asparagus tissue will soon be fibrotic and difficult to preserve. But you can wrap it in a newspaper and keep it in the refrigerator for 2 to 3 days.

Look at this color.

The edible part of asparagus is tender stem, which can be divided into white asparagus and green asparagus according to the color of asparagus at harvest. Green asparagus has fragrant smell, crisp and delicious taste and high nutritional value. It contains much more calcium, iron and vitamins than white asparagus, and green asparagus is the best fresh food.

White asparagus has a delicate taste and is mainly used to make canned food. You can also eat it after blanching with salt water. Compared with green asparagus, it has no astringency at all and is more fresh and sweet.

Side effects of asparagus

Asparagus and zucchini: aggravate spleen and stomach deficiency and cold

Asparagus+mutton: can cause diarrhea.