The nutritional value of sea shrimp

The length of the shrimps is flat on both sides. The females are about 18-24 cm in length and the males are shorter. The body is transparent, the female is brownish blue, the male is slightly yellow, and the whole body is covered with carapace. The head breastplate is relatively hard and wide, with a sharp and pointed sword in the center of the front end, with 7-9 teeth on the upper edge and 3 to 5 teeth on the lower edge. There are 1 pair of eyes with shanks on both sides of the sword, and 5 pairs of appendages on the head. The 1st and 2nd pairs become two pairs of whip-like tentacles, and the 2nd pair is very long.

The edible portion of prawns is 77 g per 100 g moisture, protein 20.6 g, fat 0.7 g, carbohydrate 0.2 g, ash 1.5 g, calcium 35 mg, phosphorus 150 mg, iron 0.1 mg, vitamin A 360 international unit, thiamine 0.01 mg, 0.11 mg of riboflavin, 1.7 mg of niacin.

Body muscle contains tropomyosin and paramyosin.

The reason why prawn turns brown is because it contains tyrosinase. If tyrosine is reduced with sodium sulfite, it will not be affected by this enzyme and it will not turn brown.

The general chemical composition of muscle of Ise shrimp (a type of lobster) is 84.78 grams per 100 grams of water, 14.20 grams of protein, 0.3, 0.5 grams of fat, 0.05, 0.05 to 0.06 grams of sugar, and 1.6,1.7 grams of ash. It is the June inclusion rate, and the subsequent number is the November inclusion rate).

This lobster contains 8 AIUs of vitamin A per 100 g, B1-10 micrograms, B2-100 micrograms, niacin 1.9 mg, C-3 mg.

Each gram of muscle contains more than 1.2 mg of alpha-tocopherol (ie, vitamin E); the iodine content is only lower than that of seaweed.

Dried lobster contains 6 mg of iodine per kilogram.

Ise shrimp muscle water extract contains the following substances (in grams of fresh muscle per kilogram): 6-hydroxypurine 0.16, arginine 5.2, histidine 0.013, lysine 0.35, betaine 2.4, Alanine 0.35, valine 0.1, a small amount of taurine, lactic acid 0.2, tyrosine are also present.

Lobster muscles, like other animals, contain proteins associated with muscle contraction - myosin, actomyosin, and methylamine; tail muscle contains about 0.3% trimethylammonium oxide.

Lobster still contains 190 mg of cholesterol. Both the shell and the viscera contain β-carotene, and the shell contains a number of carotenoids such as lutein, chanterine yellow, echinenone, zeaxanthin, and comb yellow.

There are three kinds of pigments in the shell, that is, alpha-carapace, beta-carapace and a yellow pigment, and their prosthetic groups are all xanthogenes.

The molecular weight of β-carapace is 21800±1000 and contains 2 molecules of shrimp.