Storage and transport systems
serve the storage and transport of substances (raw materials, culture media, buffer solutions, intermediate and end products) in fluid or frozen state (rarely powders). The storage as liquid has the disadvantage that proteins can aggregate or oxidation can cause spontaneous reactions during containment (e.g. bag). When stored in a frozen state, aggregation and oxidation is decelerated and the risk of product loss is reduced. The single-use system and its instrumentation which are used for storage and transport systems depend on the type and the amount of the substance and its necessary requirements 46, 49. See bags, bag handling systems and container-systems.