The vacuum filling gas package is used for safe-deposition such as the foodstuff and old book long time by pumping and filling in with Nitrogen.

This paper states the principles of the vacuum-gas flushing packaging machine.

The resultshows that the stockpile time of roasted pip is longer than raw pip under the same pack and stockpile conditions;vacuum pack with nitrogen is longer than the vacuumize; the stockpile time of common pack is the shortest .

Effect of de-astringent and crispness-keeping on Mopan persimmon of vacuum packing;

Study on preservative technology of low-temperature sterilized sauced pettitoes by vacuum packing

The paper introduces the method for preserving the fresh rare birds eggs using ozone sterilization and vacuum packing,and describes the optimum technological process and parameters after a comprehensive analysis and study of the egg's weight-reduced rate,egg white index,and yolk index and it's pH value,i.