swim bladder.

gelatin is the dried product of swim bladder, which is as famous as bird's nest and shark's fin. It is one of the "eight treasures" and is known as "marine ginseng". The main components of fish glue are high-grade collagen, vitamins and trace elements such as calcium, zinc, iron and selenium. Its protein content is as high as 84.2%, and its fat is only .2%, so it is an ideal food with high protein and low fat.

Pay attention to some details when choosing fish glue:

First, see if it is a complete fish glue, not a few small fish glue spliced together.

Secondly, it can be identified by whether the fish glue has texture and whether the texture is chaotic; If there is no texture or texture confusion, it means that this fish glue may not be a complete one.

thirdly, soak the whole fish glue in water, and distinguish its integrity by observing whether it comes loose or not.

Fourthly, we can also observe whether it has a head and a tail. The fish glue has a big head and a small tail, and its overall shape is an ellipse.

fifthly, after confirming the integrity of the gelatin, it depends on the size and thickness of the gelatin, because big fish have big gelatin, and big gelatin has higher nutritional value. The simplest way to tell is to weigh it. The weight of gelatin can best reflect whether this gelatin is obtained from big fish.