Legend has it that Qin Shihuang searched all over the world for the elixir of life, but when he took the secret box containing the elixir of life, he found that the elixir of life turned out to be sea cucumber. It is enough to see that the nourishing effect of sea cucumber has long been rumored.
In addition to using sea cucumber as a tonic, people also eat sea cucumber in their daily diet to improve their immunity. Today, I will share some knowledge about sea cucumber with my friends.
I. Types of Sea Cucumber
There are more than 1000 kinds of sea cucumbers in the world, and there are more than 20 kinds of edible sea cucumbers. Among these more than 20 varieties, Stichopus japonicus is the best, and the sea cucumbers with 4 rows of thorns and 6 rows of thorns are the most precious.
Sea cucumber is caught twice a year, once in April-May, which is often called spring ginseng. The other time was at 10- 1 1, which is often called autumn ginseng.
Second, the classification and cultivation methods of sea cucumber
At present, sea cucumbers are divided into wild sea cucumbers and cultured sea cucumbers. There are two kinds of wild sea cucumbers: the first is bottom sowing sea cucumbers, that is, after the seedlings are raised, the sea cucumbers are put into a vast sea area and allowed to grow naturally on the seabed. The second kind is pure wild sea cucumber, which reproduces itself and grows naturally on the seabed. The cultivation of sea cucumbers is to cultivate sea cucumbers in cages or ponds by the sea.
Wild sea cucumbers are born on the seabed to crawl for food and avoid natural enemies. It usually takes more than 3 years to grow to the length that can be connected. Cultured sea cucumbers raised artificially can generally be put on the market for more than 1 year.
Thirdly, autolysis of sea cucumber.
One characteristic of fresh sea cucumber is autolysis. When sea cucumber is subjected to a series of external stimuli, such as physical and chemical stimuli, it can completely degrade its own system through its own enzymes. This is the autolysis phenomenon of sea cucumber.
Just picked up the sea cucumber
After the sea cucumber is placed at room temperature for 2 hours,
It is precisely because of the autolysis of sea cucumbers that fresh sea cucumbers are difficult to preserve. In order to solve the autolysis characteristics of sea cucumber, fishermen remove the intestines of sea cucumber at the first time after fishing ashore, and then inactivate the autolysis enzyme of sea cucumber by high-temperature cooking, thus inhibiting and preventing autolysis of sea cucumber.
4. Is the color and quality of sea cucumber related?
The sea cucumber just fished out of the sea is khaki, dark green and taupe. The color of sea cucumber body surface is related to the growth environment. Live sea cucumbers, like chameleons, will change their true colors with the living environment. Sea cucumbers living near rocky reefs are brown or dark brown. Sea cucumbers living in seaweed and seaweed are green. This change of sea cucumber can effectively avoid the harm of natural enemies. Therefore, the color of sea cucumber is only a protective color, which has nothing to do with the quality of sea cucumber. Therefore, the color of sea cucumber is not the standard to identify the quality of sea cucumber.
Although the color of fresh sea cucumber has nothing to do with its quality, we should pay attention to the color after making light dry sea cucumber. The color of fresh sea cucumber is different. How can the color of dry sea cucumber be the same? The appearance of the same color is often painted with color or a layer of sugar.
Inconsistent appearance color
Consistent appearance color
5. What are the nutritional components of sea cucumber?
Sea cucumber has long lived in a high pressure, low temperature, hypoxia and high salt marine environment. Such a special living environment makes sea cucumber have many active substances and nutrients. So is sea cucumber nutritious? Does it really have nourishing effect on the body? Let's learn more about the nutritional components of sea cucumber.
Through the comparative test of nutrition detection, we can clearly see that the water content in sea cucumber products is about 77. 1%, the protein content is 16.5%, the carbohydrate content is 0.9%, and the vitamin content is 3. 14%. Dry sea cucumber has similar ingredients except low water content.
The main nutritional component of sea cucumber is protein, and most of this protein is composed of collagen, which is the main feature of sea cucumber. Collagen can promote cell repair and regeneration. Stichopus japonicus also contains Stichopus japonicus mucopolysaccharide, which can improve human immunity and anti-fatigue effects, as well as anticoagulant effects.
From the experimental results, the contents of protein and mucopolysaccharide in sea cucumber, especially the high-quality protein, are relatively high, and these nutrients are beneficial to our health. In daily life, we can eat sea cucumber to improve our physical function. If you can buy fresh sea cucumbers, you can treat them yourself and cook them under high pressure before eating. That's the best. You can also buy dry sea cucumber and eat it after you go home to soak your hair.
6. Is the sea cucumber more expensive as it gets bigger?
Here's the thing. The word "head" used by sea cucumber means "head", which means that one catty can be more or less. The bigger the sea cucumber, the longer the growth period and the higher the price. However, there are exceptions, especially wild sea cucumbers. The prices of the first few are the same as those of the first few. This is because there is a standard for diving to pick sea cucumbers, that is, sea cucumbers that have grown for more than three years are picked, so there are three years, four years, five years ... and so on, and it is ok to sell them at a unified price. This requires you to choose according to your personal needs. Some people just like being big, while others just want to be small.
Sea cucumber is a kind of warm food, which can be eaten all year round. Especially suitable for people with weak resistance, poor health or need to recover after surgery, and some elderly people can eat sea cucumber every day, no problem. Children generally don't recommend eating sea cucumbers. Eat whole grains every day, and enough exercise is enough. Children who are weak and sick from childhood can eat sea cucumbers in moderation. If you are young, you should control the amount. If you eat 3-5 pills at a time, it's really easy to get nosebleeds.
Suggestions for eating sea cucumber: Take 2-3 tablets a week in spring and autumn, 1 tablet a week in summer and 1 tablet a day in winter, and eat nine tablets.
Although there are many benefits of sea cucumber, it is not omnipotent and cannot be over-magical. In daily diet, we must follow the principles of food diversification, balanced collocation and scientific and reasonable diet, so as to be healthier.
With so many words coded, do your friends know about sea cucumbers?