Why is the shrimp body curved

Shrimp usually live in coral areas, the seabed has small sand or fine mud. It is also a way of self-protection of shrimp, when needed they can bury themselves in the sand, sometimes they burrow into the rock crevices.

In the country, there are many types of fish and animals that catch shrimp and shrimp to eat, so shrimp are often hunted. When in danger, it arches its back, then uses its elastic force to shoot very far, using its tail and rear appendages to fan the water. Shrimps often use the back bend to escape. Since the shrimp jumps in an unknown direction, the pursuing enemy will not be able to follow the track. Therefore, shrimp bending themselves is a way of protecting the body of shrimp.

Why is cooked shrimp red-orange?

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On the shells of cooked shrimp and crabs, there is a bright red pigment layer, scientifically known as astaxanthin (the same family as beta carotene).

Crustaceans such as shrimp and crab when alive, their pigments combine with proteins in the chitine layer of the shell, at this time they have no special color. However, when boiled, under the effect of heat, proteins called beta-crustacyanin change their molecular structure, breaking the bonds between them (beta-crustacyanin) and astaxanthin pigment, the pigment is separated. In particular, the red color of astaxanthin appears clearly, causing the outer shell of shrimp and crab to become red.

The color variation of these crustaceans closely resembles that of leaves. In a state of normal healthy growth, the yellow pigment (Xanthophyll) present in the leaves is covered with green pigments (chlorophyll, chlorophyll). When autumn comes, the chlorophyll molecules are broken down, and so the yellow-orange pigments have a chance to appear. Thanks to that, the leaves change to a characteristic yellow color.

 

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