There are differences between krill skin and shrimp skin in concept, appearance characteristics and nutritional value. The specific differences are as follows.

First of all, the two concepts are different.

1. Shrimp skin is dried shrimp, which can be divided into raw and cooked dried products. Shrimp skin is small and thin, which makes people feel that it is just a layer of skin after drying. The name "shrimp skin" comes from this. Shrimp skin produced in Maoxia, China is a first-class food.

2. Krill is a marine species, widely distributed and numerous. It is an important bait for many economic fish and baleen whales, and it is also the fishing target of fisheries. Antarctic krill is rich in resources, and it is estimated that there are hundreds of millions of tons in the southern ocean. Known as "the world's future food bank", the current annual output exceeds 500,000 tons.

Secondly, they have different appearance characteristics.

1. Krill is an invertebrate, which is the general name of animals with the highest content in protein, such as arthropods, crustaceans, krill, etc. There are about 80 species in the world. It looks like a shrimp, 1 ~ 2 cm long, and the largest species is about 5 cm long. The body is transparent, and the breastplate of the head heals with the whole head and chest, but it does not extend to the ventral surface, so no gill cavity is formed; Fish gills are bare and directly immersed in bath water. There are 6 segments in the abdomen and 1 segment in the tail. There are 8 pairs of thoracic limbs, all of which are double branches and have gills at the base, which are suitable for swimming.

2. Shrimp skin is the largest shrimp resource in China, including China shrimp and Japanese shrimp. The former is mainly distributed in the Yellow Sea and Bohai Sea, while the latter is more common in the East China Sea. They are very similar. If you don't observe them carefully, you will think they are the same kind of shrimp. Shrimp is very small, usually only 3 cm, so it is not noticed. However, the shrimp skin processed with it is one of the important seafood exported by China.

Third, their nutritional values are different.

1, krill is considered as the most abundant seafood containing omega -3. Shrimp is a very tiny marine crustacean, which feeds on phytoplankton at the bottom of the food chain, so it is not easy to be polluted by mercury, PCBs and heavy metals. The advantage of krill oil is that it can protect your heart, blood sugar level, liver and cholesterol level, and it also has anti-aging performance. Krill contains 7 kinds of essential amino acids and 2 kinds of semi-essential amino acids, which can improve skin tissue and enhance the whole body immune system. Krill oil contains high-quality choline, which can promote the brain development of infants and children.

2. Shrimp skin has high nutritional value. The nutritional value is measured by protein content. Every100g of shrimp skin contains 39.3g of protein, which is much higher than aquatic products such as Pseudosciaena crocea, Monopterus albus, prawn, hairtail and pomfret, and meat products such as beef, pork and chicken. Another major feature of shrimp skin is its rich mineral quantity and variety. Besides iodine, it is also rich in iron, calcium and phosphorus. The contents of calcium and phosphorus in shrimp skin per100g are 99 1 mg and 582 mg.

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