| 摘要 |
<p>This invention provides a process that protects the freeze-dried material from contamination through the steps of freeze-drying, final packaging, shipping, and storing, until the material is finally ready to be used by the ultimate consumer. The process comprises: (a) placing the material into a container in which at least a portion of a side thereof is made of a water vapor permeable, sterile barrier venting media; (b) sealing the container; (c) freeze-drying the material in the container, allowing the water vapor to escape through the venting media; (d) covering the venting media with a cover that is a barrier to water vapor and oxygen transmission; and (e) maintaining the material in the container until it is ready for use.</p> |
