一种快速有效的高分子包装材料阻隔性测试方法的研究

风味既是食品品质的重要指标，其变化又决定着食品保质期（货架寿命），因此防止风味物质的逸散与异味物质的渗入具有重要的意义，而食品的包装薄膜的阻隔性成为关键。故研究快速、有效地测定塑料包装薄膜对风味物质的阻隔性，以便选择适合的阻隔材料又成为首要任务。

Study on the Quick and Useful Testing Methods for Shieldability of Polymer Packaging Materials

Flavor is the key target of food quality , and its change determines the expiration date of food . Therefore it is significant that how to prevent the exhalation of original flavor and permeation of different flavors . So the shieldability of food packaging membrane becomes the most important . It is vital to find a quick and effective way to research and examine the shieldability of plastic food packaging menbrane to the flavor foods so as to choose a suitable shieldability material.