What s the matter with the white powder on the dried shrimp

Dried shrimp is generally salty, and after a long time, the salt will be exposed after the water evaporates, not moldy, and you can eat it after washing. But if it has a taste, it is not recommended to eat it again. Let's take a look at the relevant knowledge.

Dried shrimp is a dried product made of shrimp, which can have the effect of prolonging the storage time, so how long can dried shrimp be preserved?

1. After the shrimp is dried, if it is vacuum-packed and stored in the cold storage of 0-10, it can generally be stored for about 12 months.

2. If the dried shrimp is directly put into the cold storage for preservation, it can generally be stored for about 8-12 months.

3. If it is stored at room temperature, it is usually put into a wide-mouth glass bottle, stored in a light, ventilated and dry place, which can be stored for about 3-4 months. You can also wrap the dried shrimp with clean white paper, tie a few small holes in the white paper that can be ventilated, and then put the white paper bag in a ventilated and dark place to store it.

The shelf life of dried shrimp is relatively long, but if it is not stored properly or stored for too long, it may cause mold, hair, deterioration, etc., so can moldy dried shrimp still be eaten?

After treatment, dried shrimp is itself salty, does not spoil easily, and can be stored for a longer time; But the dried shrimp is very afraid of moisture, if it is not stored properly and causes moisture, the dried shrimp will become moldy, so can the dried shrimp be eaten after washing it clean?

Generally, moldy dried shrimp is not recommended to eat, because moldy dried shrimp may have deteriorated under the action of mold, producing harmful substances, which will cause damage to the human body after eating; Even if the moldy dried shrimp is cleaned, the inside of the dried shrimp may have become moldy, so if the dried shrimp is moldy, it is recommended to throw it away and not eat it again.

It should be salt powder. Usually this kind of dry goods is more salt, on the one hand, it can be preservative, on the other hand, it accounts for the portion, and the salt sells the ** of shrimp. So a high salt content is unlikely to be mold.

First of all, it is mainly due to sudden changes in the weather, such as lack of oxygen due to rain, or the condition of zooplankton that is white and white, green and heavy rain, etc., and the phytoplankton die. If the pond is transparent, phytoplankton bloom water feeds heavily on algae.

Then, explosive reproduction, zooplankton will eat up phytoplankton, and the number of phytoplankton cannot meet the needs of zooplankton, and the government does not want the water body to lose its original water color and change it, because the water color and transparency in the pond 4 degrees are determined by the species and number of phytoplankton in the pond. Because the main harm of the turbid water of oxygen in the pond is to cause the pond to lack oxygen.

Then, the main producer is photosynthesis of phytoplankton. It has been reported that phytoplankton photosynthesis accounts for the dissolved oxygen harvest in seawater ponds, while the oxygen content and diffusion of feed gas account for only the dissolved oxygen harvesting in ponds. The turbidity of the pond water means that there are very few phytoplankton in the pond, and of course there is very little photosynthesis, and the production of oxygen is naturally reduced.

Then, in addition to reducing the oxygen supply and affecting the respiration and growth of shrimp, the turbid water can also lead to the deterioration of water quality. Because there is a large amount of shrimp excrement, bait and biological carcasses in the bottom of the pond.

Then, when the oxygen content of these substances is sufficient, they are easy to carry out oxidation reactions, and harmful substances (such as ammonia nitrogen, nitrous acid and hydrogen sulfide) are less and less; In the case of hypoxia, the reduction reaction of the pond substrate increases, and the harmful substances increase, which leads to shrimp stress and diseases.

Finally, there are ways to control turbid water, using disinfectants to kill some zooplankton. Use strong chlorine in fish and shrimp according to per mu. The dosage of 150 grams of rice should be splashed on the edge of the pond in the evening or at dawn, and half an hour later the use of Xinyang mixed killing weir per mu.

Splashing 20 ml of rice along the edge of the pool can effectively kill zooplankton.

1. Bubble disease: pay more attention to prevention, especially sudden changes in temperature and air pressure, pay attention to open more aerators at noon on sunny days, and pour more bubble disease to relieve safety when it occurs. 2. Stress:

Temperature changes, weather changes, water intake and water changes will cause stress, should be used to activate and vitality calcium to prevent 3, nitrite poisoning, first increase oxygen, in the case of sufficient oxygen, nitrite can be converted into nitrate, and then many times with Fudi'an to change the bottom, Bishui An detoxification is useful 4, infectious muscle necrosis virus, the virus depends on the size of the shrimp to consider catching shrimp personal opinion.

Generally speaking, the main reason in the middle and late stages is the deterioration of water quality and substrate, which is more obvious when the shrimp is shelled, and the high pond is mostly related to the shrimp itself, such as "cotton shrimp".

Just a box of meat in the body turned milky white, indicating that the shrimp had been dead for a long time and had changed color.

That's not so new. Fresh shrimp are blue. Wornish is not fresh. The taste is not very good.

Summary. Hello dear, I have helped you find the result: the white on the shrimp is the vas deferens, the white of the shrimp head is not a parasite, but the reproductive glands of the male shrimp - the vas deferens, the immature vas deferens is colorless and transparent, and the mature male shrimp is milky white.

At this time, it is the breeding season of shrimp, and it is not surprising that male shrimp contains vas deferens, and the main component of the gonads of shrimp is protein, which is completely edible.

Hello dear, I have helped you find the result: the white on the shrimp is the vas deferens, the white of the shrimp head is not the first burning parasite, but the reproductive glands of the male shrimp - the vas deferens, the immature vas deferens is colorless and transparent, and the mature male shrimp is milky white. At this time, it is the breeding season of shrimp, and it is not surprising that male shrimp contains vas deferens, and the main component of the gonads of shrimp is protein, which is completely edible.

Shrimp is a kind of arthropod that lives in water, belonging to the arthropod crustaceans, and there are many species, including Antarctic red shrimp, green shrimp, river shrimp, grass shrimp, prawns, prawns, lobsters, etc. Shrimp has a high therapeutic nutritional value, can be steamed, fried and other practices, can also be used as a Chinese medicinal material. Eating shrimp can supplement nutrients such as protein, iodine, phosphorus, calcium, vitamin A, vitamin B12, vitamin E, and magnesium.

Summary. The white color on the shrimp is the alkalizing state produced by the salt in the shrimp body or the added salt after high temperature, which does not affect the eating. They are shrimp eggs, and after they are laid, they will gather in the belly of the shrimp, and when cooked, they will be white lumps.

It is relatively normal for shrimp to have white spots on their bodies, and the reasons for them vary depending on the location of the white spots.

The white color on the shrimp is the alkalizing state produced by the salt in the shrimp body or the added salt after high temperature, which does not affect the eating. They are shrimp eggs, and after they are laid, they will gather in the belly of the shrimp, and when cooked, they will be white lumps. It is relatively normal for shrimp to have white spots on its body, and the reasons for it are different according to the position of the white spots.

You can soak the frozen shrimp in clean water, which can wash off the white-dotted reed brother and can be eaten normally. When frozen shrimp are thawed, they can be thawed at room temperature or refrigerated in the refrigerator. Soak the shrimp in water for a while, then wash them off, and if they can be washed off, they can be eaten normally.

If it can't be cleaned, it is a white spot or a deterioration. This frozen shrimp is not edible.

Wriggling worms.

Experts say that there is indeed a possibility of parasite leakage in the shrimp head, but it will not be visible to the naked eye, but can only be seen under a microscope. Shrimp shell under the shrimp gills, see the white line is the shrimp gills with search silk, shrimp life in the water needs a lot of oxygen, are through the gills directly contact with the water, the water oxygen Lu brother transport to the whole body. From some angles, you may only see individual gills moving alone, but in fact, they are all moving, and they are definitely not parasites, so you can eat them with confidence.

1. The white thing in the shrimp is the digestive system. Because there are dirty things in the digestive tract of shrimp, and because the shrimp line affects the taste, especially when it is steamed and stewed in wine, the shrimp line contains bitter substances, which will mask the sweet taste of the shrimp under the action of heat.

2. Shrimp (shrimp), which is a kind of arthropod that lives in the water, belongs to the arthropod crustaceans, and there are many types, including Antarctic red shrimp, green shrimp, river shrimp, grass shrimp, prawns, prawns, lobsters, etc. Shrimp has a high therapeutic nutritional value, can be steamed, fried and other practices, and can be used as Chinese herbal medicine.

The white stuff in the shrimp is under the digestive system. Because there are dirty things in the digestive tract of shrimp, and because the shrimp line affects the taste, especially when steaming and simmering, the shrimp line contains bitter substances, which will mask the sweet taste of the shrimp under the action of heat.

Shrimp (shrimp) is a kind of arthropod living in the water, belonging to the arthropod crustaceans, and there are many species and songs, including the Antarctic red shrimp, green shrimp, river shrimp, grass shrimp, prawns, prawns, lobsters, etc. Shrimp has a high nutritional value of eating cherry blossoms, which can be steamed, fried and other practices, and can be used as Chinese medicinal materials.

White rice shrimp is river shrimp. White rice shrimp is also known as Taihu Lake white, in the process of selecting white rice shrimp, remember to buy live and fresh and delicious shrimp, beautiful white shrimp, etc., the shell of white rice shrimp is very thin, the whole body is transparent, the meat is tender and fresh, the suitable cooking methods are: boiled white shrimp, drunk shrimp, fried white rice shrimp, salted white rice shrimp, etc., like river fresh must not miss the opportunity to taste.

Species introductionRidgetail white shrimp is only found in the waters around China. Adult shrimp body length 4 9 cm. There is a pronounced longitudinal ridge on the back of the 3rd to 6th segments of the abdomen**, hence the name.

The comb-like ridge at the base of the upper margin of the frontal horn is shorter than the apical part of the terminal, with additional small teeth at the end. Step 2: The length of the knuckles of the foot is about twice the length of the palm, which is about the same length as the carpal joint.

It lives in shallow seas or near estuaries, and its suitable salinity is. The breeding period is from October to October, when the water temperature reaches 12 13, the mature broodstock is molting, mating, and spawning, and the fertilized eggs adhere to the first 4 pairs of swimming feet, and the fertilized eggs of Zhaoqin are hatched into larvae after 10 15 days of reading, and then molt into larvae after several times.

Summary. Dried shrimp are better red because they taste more delicious and are also nutritious.

1. White shrimp skin.

The white shrimp skin is generally made of hairy shrimp from the Bohai Sea, the content of astaxanthin is less than that of red shrimp skin, the content of calcium is relatively high, the color of shrimp skin is whitish, and the salt content is low, which is especially suitable for making soup and preparing fillings.

2. Red shrimp.

The red shrimp skin is generally made from dried shrimp from the East China Sea, and it is large and has a high astaxanthin content, so it appears red. The red shrimp skin has a high salt content, so it should be soaked in advance when eating, which can remove excess salt and make it fresher.

Shrimp dried red and white that is good.

Dried shrimp are better red because they taste more delicious and are also nutritious. 1. White shrimp skin The white shrimp skin is generally made of Hairy shrimp from the Bohai Sea, the content of astaxanthin is less than that of red shrimp skin, the calcium content is relatively high, the color of the shrimp skin is whitish, and the salt content is low, which is especially suitable for making soup and preparing fillings. 2. Red shrimp clear section skin Red shrimp skin is generally made of dried shrimp from the East China Sea, which is large and has a high astaxanthin content, so it is red.

The red shrimp skin has a high salt content, so it should be soaked in advance when eating, which can remove excess salt and make it fresher. Answer: Paiyu.

It is my pleasure to serve you and hope it helps.