Asparagus, also known as Asparagus, Asparagus, and Asparagus, is a perennial flowering herb that can be harvested continuously for 10 years after planting. The difference between green asparagus and white asparagus depends mainly on whether there is sunshine, and the asparagus is exposed to the ground and absorbs sunlight. At present, China is the largest producer, followed by Peru, Mexico, and the United States. The annual production of white asparagus in Germany accounts for 60% of consumer demand.
Asparagus varieties vary in size and price, and prices vary. Asparagus is best in the shape of the whole plant, the leaves are not stretched, the axillary buds are not long, the epidermis is dark green, smooth and not shrinking, and coarse. The more fresh the asparagus is, the more delicious it is. It should not be put for a long time. Its freshness is quickly reduced, the tissue becomes hard and it loses a lot of nutrients. The kitchen paper roll is placed in a refrigerator for two days.
Western vegetables usually use asparagus as an appetizer or side dish, in Hong Kong The dishes are fried with thick asparagus, such as fried asparagus, chicken or beef. Fresh and thick asparagus, no need to peel when cooking; if it is older, the root fiber should be removed. Folic acid in asparagus is easily destroyed by high temperatures, so avoid high temperature cooking for a long time.
Medical research has found that asparagus is rich in nutrients, rich in protein, vitamin A and C, calcium, fiber and folic acid, the content of vitamin C is almost the same as that of spinach, 1.5 to 2 times that of tomato. And it has a good anti-oxidation effect, can protect the eyes health, keep the skin moisture, so there is the title of the king of vegetables. Asparagus is a high-fiber vegetable, similar to spinach and kale, which helps digestion and laxative, and increases satiety. It can also improve cardiovascular function, increase appetite, improve the body’s metabolic capacity, and improve immunity. Asparagus contains 9 kinds of essential amino acids in the human body. For example, aspartic acid can eliminate fatigue, more diuretic effect, can drain excess water from the body, and is beneficial for detoxification. However, the content of asparagus puer () is high, and it is best for gout patients to eat less.