Jellyfish skin is a manufactured product of jellyfish. Jellyfish is a kind of large edible jellyfish, as early as 1,600 years ago in the Jin Dynasty has begun to eat. Jellyfish are distributed from the Liaodong Peninsula to the coast of Guangdong, and they are an important fishing object in China's coastal fisheries.

Jellyfish skin is a manufactured product of jellyfish. Jellyfish body is umbrella-shaped, the body is translucent, white, green or yellowish, jellyfish umbrella diameter can be more than 45 centimeters, the largest up to 1 meter of the giant, under the umbrella of the eight thickened (with the shoulder) carpal base of the healing so that the mouth disappeared (replaced by the sucker's secondary mouth), below the mouth of the carpal carpal with many rods and filaments tentacles, on the dense stinger capsule, able to secrete venom. Its function is to release venom to paralyze when touching small animals for food. Jellyfish is a large edible jellyfish that has been eaten as early as the Jin Dynasty, more than 1,600 years ago. It is distributed in China from the Liaodong Peninsula up to the coast of Guangdong, and jellyfish is an important fishing object in China's coastal fisheries.

The body of the jellyfish can be divided into the umbrella part and the carpal part. The umbrella body is elevated and hemispherical, with a diameter of 300-500 mm, and the largest one can reach 1 m. The surface of the umbrella body is smooth, and the gelatinous layer is developed, thick and hard. The surface of the umbrella is smooth, with a well-developed mesocarp, thick and hard. The upward side of the umbrella is called the outer umbrella surface (antipodal surface), and the downward side is the inner umbrella surface (oral surface). The body color is highly variable, generally greenish blue, some are dark red or yellowish brown. Below the umbrella is the root-like mouth wrist, the mouth wrist healing, the original mouth closed, the lower part of the mouth wrist to form a lot of small holes, known as the mouth of the suction, jellyfish rely on the mouth of the suction to suck seawater algae, protozoa, small crustaceans and other microscopic organisms. Jellyfish tentacles on the stinging cells can radiate venom, can defend against predators, people touch the feeling of pain.

Jellyfish caught with lime, alum immersion, and then squeezed the body of the water, washed, salted. Chopped.

Identification

(1) color identification

Good quality jellyfish skin --- white, creamy white or yellowish, the surface is moist and shiny, without obvious red spots. Sub-quality jellyfish skin --- grayish white or tea brown, poor surface gloss.

Inferior quality jellyfish skin - the surface shows dark gray or black.

(2) Identification of brittleness

Good quality jellyfish skin --- crunchy and tough, rattling sound when chewing.

Second-quality jellyfish skin --- poor crunch, no toughness.

Inferior quality jellyfish skin - crunchy texture, easy to tear, no crunch and toughness.

(3) thickness identification

Good quality jellyfish skin --- the whole sheet is uniform in thickness.

Sub-quality jellyfish skin - uneven thickness.

Inferior quality jellyfish skin --- uneven thickness of the sheet.

(4) shape identification

Good quality jellyfish skin --- natural round, no hole in the center, the edge is not broken.

Second-quality jellyfish skin --- incomplete shape, with broken phenomenon.

Inferior quality jellyfish skin - incomplete shape, easy to break.

Nutritional analysis

1. Jellyfish contains a variety of nutrients needed by the human body, especially iodine, which is lacking in people's diets, and is an important nutritious food

2. Jellyfish contains substances similar to acetylcholine, which can dilate blood vessels and lower blood pressure

3. Jellyfish contains mannan polysaccharide gelatin, which is effective in preventing and treating atherosclerosis

4. >4. Jellyfish can soften the knot, line siltation, clearing heat and phlegm, bronchitis, asthma, gastric ulcers, rheumatoid arthritis and other diseases, and has the role of tumor prevention; engaged in hairdressing, textile, food processing and other dust contact with more staff often eat jellyfish, can go to the dust accumulation, clear the stomach and intestines, to protect the body's health.