How is silk created?

The process of forming pupae, worm silk releases silk to create cocoons. Silk cocoons are harvested before pupae grow into him.

During the development of the pupae (3-8 days), the worm worm produces a liquid and insoluble protein called friboin, which is secreted from their mouths. This liquid protein stiffens when exposed to air.

A worm worm can release nearly 1000 meters of silk in just 2 days.

Then, wormworms continue to secrete sericin - a binder, which binds tiny silk fibers together. They continue to release the silk until the cocoon is completed. For each cocoon, silk is braided about 800,000 times in figure 8. A worm worm can release nearly 1000 meters of silk in just 2 days.

When pupae grow into him, they destroy cocoons to get out. Therefore, silk should be harvested before pupae grow into him.

Silkworm cocoons will be dipped in boiling water to kill pupae. The boiling water helps soften the sericin binder to separate the silk. It takes about 2,500 wormworms to produce 1 pound (0.45gram) of raw silk.

Silk is mostly used to make clothes. Scientists also studied how to cause silkworm mutations to produce medical applications, such as replacing knee ligaments.