Why need filling nitrogen during mixing the meat stuffing?

Tindo makes Nitrogen Filled Vacuum Meat Mixer, but do you know Why need filling nitrogen during mixing the meat stuffing?

Nitrogen filling during meat mixing is often used to prevent the growth of harmful bacteria, such as salmonella or E. coli. By filling the mixing chamber with nitrogen, the oxygen that bacteria needs to survive is removed, creating an environment that is less hospitable to bacteria growth. This process can help ensure that the meat product is safe for consumption and has an extended shelf life. Additionally, nitrogen helps prevent oxidation, which can cause off-flavors and discoloration in meat products.