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What are the storage precautions for dried snake venom?

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Dried snake venom is highly hygroscopic and not heat-resistant. Under the influence of high temperature, moisture or sunlight, it tends to deteriorate and lose its enzymatic activity. Therefore, the following points must be done well to preserve it for the long term. (1) After the dried snake venom is weighed, it should be put into an amber or brown bottle as soon as possible, the mouth of the bottle tightly stoppered with a cork, and then sealed with wax or vacuum oil. For large bottles of dried venom, in order to minimize unnecessary opening, some can be taken out and sealed in sample bottles before sealing, so as to be available for inspection at any time or to satisfy small occasional customers; the weight can be packaged as appropriate.

Dried snake venom is highly hygroscopic and not heat-resistant. Under the influence of high temperature, moisture or sunlight, it tends to deteriorate and lose its enzymatic activity. Therefore, the following points must be done well to preserve it for the long term.

(1) After the dried snake venom is weighed, it should be put into an amber or brown bottle as soon as possible, the mouth of the bottle tightly stoppered with a cork, and then sealed with wax or vacuum oil. For large bottles of dried venom, in order to minimize unnecessary opening, some can be taken out and sealed in sample bottles before sealing, so as to be available for inspection at any time or to satisfy small occasional customers; the weight can be packaged as appropriate.

(2) The sealed snake venom can be placed in a cool place indoors or kept at a constant temperature in a refrigerator, and can generally be preserved for more than 10 years. Never place it in sunlight or in a place where the temperature exceeds 30°C, such as next to a stove or radiator.

(3) If a relatively large quantity and variety of dried venom is to be stored, the containers holding the venom must be marked with the name of the snake venom, weight, date of venom collection or inspection batch number, etc. To avoid exposure to light, it is best to use colored metal foil or tin foil on the outside for light protection.

(4) Snake venom is a highly toxic substance, so there should be a dedicated person to keep it and strict handover procedures, implemented in accordance with national regulations on the management of highly toxic substances. It must not be taken at will, so as to avoid mixing and affecting quality or causing accidents.

(5) In order to preserve the equipment for the long term, it is best to carry out vacuum drying again at intervals (about once every 1 year), so as to prevent moisture from affecting the quality of the snake venom.

According to reports, someone placed dried cobra venom powder in a brown bottle and stored it in a cool place indoors for 30 years, after which the lethal effect of the snake venom still retained 90% of its original lethal effect.

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