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14 February 2017
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Teaching is concentrated in the faculties and schools, and the departments deal with research, which is also conducted by institutes and chairs, at the same time responsible for knowledge promotion.
Lyophilization is the process of sublimation of the water in a sample (liquid to gas transition) from the freezing of a sample and subsequent vacuum drying.
In order to carry out one analyses, put in touch with the responsible for the UEA.
It be necessary to inform of the toxicity and precautions of storage of the sample.
The LyoQuest-55 is a compact and easy-to-install lyophiliser.
It has a capacity of 8 Kg of condenser (5 Kg/24 h), with a final temperature of -55 ºC.
The equipment is complemented by a double-stage vacuum pump located outside.
The foundation of the lyophilisation equipment is based on maintaining a previously frozen sample at a low temperature (-50ºC) while the vacuum is applied in a chamber. In this way, the sublimation of the water contained in this sample is obtained. The process ends when the internal temperature of the sample and the chamber are equal (between 24-48h depending on the thickness of the sample). The more surface area of the sample to be lyophilised and the less amount of supernatant, the faster the process will be.
The aim of lyophilisation is to dehydrate samples without altering their composition. Lyophilised samples can be stored in cool, dry places for a long period of time, avoiding their degradation.
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