This document discusses various types of food packaging technologies. It describes how packaging has evolved from using natural materials like skins and leaves to modern sealed containers. It then explains different types of modified atmosphere packaging (MAP) which controls gas levels to extend shelf life by reducing oxygen and increasing carbon dioxide. It also discusses active packaging that absorbs or releases specific compounds and vacuum packaging. Finally, it lists some biodegradable materials commonly used for packaging like cellulose, starch and polylactide acid plastics.