Vacuum Freeze Drying Technology In The Application Of Snake Venom Drying

The snake venom is pre-frozen by a freeze dryer, and the snake venom is sublimed and dried under vacuum. The snake venom powder dried by this method has small water content, strong enzyme activity and good quality, and is currently the most ideal lyophilized snake venom. Powder method

Extraction of snake venom

The extraction of snake venom is prepared in advance by taking a series of preparations before taking the poison. Check whether the mechanical equipment is in good condition, installation, and debugging. Three days before taking the poison, let the snake drink water to enrich the water in the snake body and, if necessary, spray water on the snake body. Observe that all the snakes are not resting. When they are in a sleep state, they can start to take poison. They should be classified in batches and classified.

When taking poison, fix the measuring cup, hook the snake with a snake hook, take the hook with your right hand, hold the snake head with your left hand, lift the snake's mouth, press the snake's fangs on the measuring cup, and gently squeeze the snake's venomous gland with your right hand. The venom is pushed out from the venom gland and work one by one. The skilled person can take more than 200 snakes per hour, and can take poison once every 15 days. On the third day after taking the poison, the food is from the Qingming to the hibernation period. It can be taken 10-12 times a year, and each venom taken out by each snake is about 0.5--1.0 grams, and individual can reach 5 grams.

Processing of snake venom

The venom taken out should be stored at a low temperature in time, and should not be more than 1 hour at normal temperature. Generally, the site to be poisoned should be close to the refrigerator. Filtration of the obtained snake venom is a fundamental problem in ensuring the quality of snake venom.

In the first step, the filtration is to remove the impurities, to obtain a clear liquid, to freeze, and to form an ice cube and then to dry.

In the second step, the frozen snake venom ice cubes are placed in a vacuum drying apparatus, freeze-dried, and vacuum drying is generally completed in 8 hours. The dried snake venom is in powder or block form, the five-step snake venom is white powder, and the cobra venom is light yellow powder.

After drying, the water content of the snake venom should not exceed 5%. Such venom is the refined lyophilized powder of snake venom. The lyophilized snake venom is relatively simple to store, placed in a sealed glass bottle, and stored in a refrigerator freezer. The shelf life is generally 10-20 years.

Ningbo Scientz specializes in the production of freeze dryers with 30 years of experience. The machine uses the international brand Secop (formerly Danfoss) compressors, which are stable and reliable.