2. Look at the shape and pinch it. A good sea cucumber has a well-proportioned body, strong meat, sharp and complete thorns, and is hard to feel and not easy to bend. The sea cucumber mixed with sugar is just the opposite, its body is easy to bend, but its thorns are straight.
3. Heat and bend. Sugar melts easily, so when you buy sea cucumber, you can try to warm the sea. The simplest thing is to rub your hands hot, and then put the sea cucumber in your hands for a while. When it is hot, grab the two ends of the sea cucumber and let the sea cucumber bend. If the sea cucumber is found to be bent and soft, and the higher the temperature, the more obvious this change is, which means that sugar is mixed.
Extended data:
Active components of sea cucumber
1, sea cucumber polysaccharide
Sea cucumber polysaccharide is an important functional component of sea cucumber body wall, and its highest content can account for 3 1% of total organic matter in dry sea cucumber. The polysaccharide content and composition of sea cucumber are important chemical indexes to measure the nutritional value of sea cucumber. Modern pharmacological research shows that sea cucumber polysaccharide has a variety of pharmacological activities, including anti-tumor, immunomodulation, anticoagulant and antithrombotic, hypolipidemic and so on.
2, sea cucumber saponin
Sea cucumber saponin is a kind of triterpenoid saponin unique to sea cucumber, which is the main secondary metabolite of sea cucumber and the chemical material basis for its defense. Modern pharmacological activity research shows that sea cucumber saponin has many biological activities such as improving immunity, anti-tumor, anti-bacteria and anti-cancer.
3, cerebroside
Brain glycoside, also known as acyl sphingosine hexose glycoside, is a kind of endogenous bioactive substances widely existing in the cell membranes of fungi, plants, animals and marine organisms.
Baidu encyclopedia-sea cucumber