澳洲论文代写:冷冻干燥

今天为大家整理一篇优秀的essay范文-澳洲论文代写:冷冻干燥。本文讲述的是冷冻干燥也称为低温干燥或冻干。它需要一个过程,在这个过程中,可以被冻死的物质通过冷冻,然后降低超越压力,使物质中的冷冻液体从固态升华为气态。冷冻干燥技术应用于包装行业的许多部门。它们被用于制药公司、农业公司、技术行业和其他部门。本文阐述了冷冻干燥的优点和局限性。本文由澳洲Assignment First论文辅导网提供,供大家参考阅读。

澳洲论文代写:冷冻干燥

冷冻干燥的好处:

它被制药公司用来延长疫苗或其他药物的保质期。在这个过程中,水的含量被去除,物料的运输通过玻璃小瓶是容易的。它也可以作为冻干粉运输。它们也可以转化成干粉。干粉被用作益生菌。

它在制造业中被用作开发药物的原材料。在微生物学和研究工业中保存了一些细菌和微生物菌株。每体积的重量减少,因此食品可以很容易地运输和储存。香草、咖啡、冷冻干果和其他各种食品也可以储存。冻干的产品更稳定,更容易溶于水。由于运输和安全方面的便利,各公司已经考虑了这一程序。然而,这个过程也有一些限制。

澳洲论文代写:冷冻干燥

从成本的角度来看,这是一个昂贵的过程。冷冻干燥设备比其他工艺贵三倍。这个过程也需要更多的时间。因此,在冷冻干燥技术的情况下,该过程所涉及的操作和制造成本正在上升。除此之外,还有一个在生产过程中观察到的操作问题。加热能使某些化合物变形。传递的热量应适当使用。

综上所述,在现有技术条件下,目前最可行的方法是冷冻干燥法。成本和时间问题是这种方法的主要障碍。在这种方法中还需要解决热利用的操作问题。

从当前的价值链分析可以理解,对于货架期有限的有机易腐产品,需要付出更多的努力。目前的储存和运输需要更多的研究来发展。下面将详细讨论价值链分析的研究、发展现状和局限性。

澳洲论文代写:冷冻干燥

From a cost standpoint it is an expensive process. The equipment for freeze drying is three times more expensive than other process. This process also requires more time. Hence the operational and the manufacturing costs involved in the process have been found to be on the rise in the case of freeze drying techniques. Added to this there is an also operational issue that has been observed during production. The addition of heat can cause certain chemical compounds to become deformed. The heat content that is delivered should be used appropriately.

To summarize in the current time, the most feasible method with the available technology is the freeze drying method. The issues of cost and time are the major impeding factor for this method. The operational issues of utilization of heat also need to be addressed in this method.

澳洲论文代写:冷冻干燥

From value chain analysis of the current times it can be understood that for organic perishable products with limited shelf life there should be more efforts undertaken. The current storage and transportation needs to be developed with more research. The research, current development and the limitations of the value chain analysis has been discussed in detail in the following.

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