What type of microorganisms do foods in modified atmosphere packages promote the growth of?

Modified atmosphere packaging (MAP) is a technique used to extend the shelf life of perishable foods by altering the composition of gases in the packaging environment. This method often reduces the amount of oxygen, replacing it with nitrogen or carbon dioxide. Under these low-oxygen conditions, certain anaerobic bacteria can thrive, particularly Clostridium botulinum.

Clostridium botulinum is a spore-forming bacterium that produces a potent toxin under anaerobic conditions, which can be found in improperly processed or stored food that is packaged in environments with little to no oxygen. The reduced levels of oxygen in modified atmosphere packages create a favorable environment for this bacterium, allowing its spores to germinate and produce the harmful toxin.

It's essential for food handlers to be aware of this risk as consuming foods contaminated with the botulinum toxin can lead to severe illness or even death. Proper food handling techniques and following preservation guidelines are crucial in preventing the growth of Clostridium botulinum in such packaging.