Final answer:
Vacuum-sealed packaging is used to prevent bacterial growth by reducing or replacing oxygen, commonly used in food preservation and medical material sterilization.
Step-by-step explanation:
The type of packaging that reduces or replaces oxygen with other gases to help keep bacteria from growing is known as vacuum-sealed packaging. In this process, the oxygen that could facilitate the growth of aerobic bacteria is removed and often replaced with other gases like nitrogen or carbon dioxide, which do not support the aerobic bacterial growth. This method is widely used in food packaging to maintain freshness and prevent spoilage. Technologies such as anaerobic jars and chambers help in the cultivation and handling of bacterial cultures in oxygen-free environments. In medical and laboratory settings, various methods such as ethylene oxide sterilization and the use of peroxides and pressurized carbon dioxide are utilized for the sterilization of heat-sensitive materials and for preserving the integrity of medical devices.