In recent years, as killing of chickens on the spot affects the environment, especially on the environmental hygiene of big cities, and is easy to cause "bird flu" and other problems, many cities will ban live killing of chickens on the spot one after another. Chickens are usually slaughtered collectively. Therefore, the fresh-keeping problem of white-striped chicken was put on the agenda.

As we all know, the air in the modified atmosphere packaging is replaced by carbon dioxide, nitrogen and oxygen. Today we will talk about the main role of carbon dioxide in the modified atmosphere packaging.