Tongrentang Cai Jing jar series products claim to be filled with nitrogen to keep fresh. Want to know which one has better preservation effect, desiccant or nitrogen?

There are three common preservation methods for Chinese herbal medicines in the market, one is to put desiccant, the other is to fill nitrogen, and the third is to use vacuum packaging. Most pharmaceutical companies adopt desiccant preservation method, which can reduce the production cost of enterprises. After all, the operation process of nitrogen or vacuum packaging is more complicated than desiccant, otherwise the production cost will rise and affect the retail price of products.

You ask which effect is better, nitrogen or desiccant packaging? It can be said that each has its own advantages and disadvantages.

Advantages and disadvantages of desiccant preservation

Let's talk about desiccant preservation, which is the method adopted by most enterprises, whether it is food or Chinese herbal medicine products.

Advantages of desiccant:

Low production cost and low price can effectively reduce the production cost of products, thus reducing the retail price of products and making them affordable for most consumers.

However, its shortcomings are also obvious. The desiccant used for food in the market is mainly quicklime desiccant, while the desiccant used for medicine, health care products and some high-end foods is mainly silica gel. If these two desiccants are only used normally, their chemical properties are very stable, and there is no secondary pollution and no harm. However, if it is not properly preserved, the packaging bag containing desiccant will be damaged and leaked, resulting in product pollution; If the desiccant is damaged, the small transparent particles inside will directly contact the air, become moldy after being wetted, and cause secondary pollution to medicines and food.

Even if the desiccant is well preserved, it will be very harmful if it is accidentally eaten by children. Online news about eating desiccant by mistake is also common. It is most dangerous for quicklime desiccant to meet water before it loses its activity, because quicklime is corrosive when it meets strong alkali, and it is easy to react with water and other substances to release heat. Be sure to prevent children from playing. "There was once a child who played with the desiccant in the glass seaweed, put it in a water glass and covered it with a lid. As a result, the desiccant explosion hurt the child's eyes. "

Advantages and disadvantages of nitrogen storage

Let's talk about the disadvantages of nitrogen first. Nitrogen filling requires a lot of production equipment and workers' production technology, which makes the retail price of nitrogen-filled products much more expensive than that of similar products, which makes some consumers flinch from nitrogen-filled Chinese herbal medicines.

But the benefits of nitrogen filling are also great. We all know that nitrogen is a colorless, odorless, nontoxic and harmless gas. But it is an inert gas, and it is difficult to have a chemical reaction unless special circumstances occur. This essence is that nitrogen preservation has become a relatively safe preservation measure.

abstract

In recent years, "freshness" has become a sacred object pursued by all walks of life, and the beauty and plastic surgery industry has also tried to "freeze-age beauty" jujube. But there are more things in life that we want to keep fresh. Fruit and meat will still be chewed for a long time in the refrigerator. Traditional Chinese medicine and western medicine injections also need to be preserved, especially in recent years, with the development of science and technology, all kinds of electronic components can not be used in full once they are oxidized, rusted and damaged.

Of course, all the secrets of "keeping fresh" can be easily solved with nitrogen.

In order to prevent some objects from being oxidized by oxygen when exposed to the air, filling nitrogen into the granary can keep the grain from mildew and germination for a long time. Nitrogen storage of fruits, vegetables and tea is also the most advanced method. This method can slow down the metabolism of fruits, vegetables and leaves. In the environment of high nitrogen and low oxygen, it seems to hibernate, inhibit maturity and keep them fresh for a long time. According to experiments, apples stored in nitrogen are still crisp after 8 months. Chinese herbal medicines have high requirements for storage environment.