Products, which have to reduce the germination number are for example:
- Extracts from the pharmaceutical- and foodstuff industry
- Fruit juices
- Dairy products
- Gelatine
For these fields of application e&e Verfahrenstechnik GmbH offers sterilisation plants which correspond exactly to the individual needs of our customers and which meet GMP-, FDA- and EHEDG-standards.
e&e Sterilisation Plants
Products which are used in the foodstuff, pharmaceutical, cosmetical and chemical industry are subject to strict hygienic demands and have to be sterilized, normally; this means that the products are heated for a short time (according to demand) up to high temperatures, in order to eliminate germs.
We distinghuish between direct-steam- and indirect-sterilisation plants, which operate either continually or discontinuously.
Direct steam sterilisation
With the direct steam sterilisation the product is directly mixed with steam. By means of an injection nozzle the sterile steam is added to the product. A downstreamed variable heating line determines the heating-holding time.
After a pressure keeping valve the temperature of the product is suddenly
decreased in a vacuum separator by means of flash (from high pressure
to vacuum).
The vapours (volatile steam), arising from this process, can be used
for heating the downstreamed evaporator stages or they can be condensed
and pumped out via a surface condenser.
The direct steam sterilisation is mainly used for sensitive products which have to be treated with short heating-holding times and high temperatures.
Indirect sterilisation
With the indirect sterilisation in contrast, the product does not come into contact with the heating medium.
The heating takes place by heat exchanger systems, this means that either plate- or tube heat exchangers are used.
The indirect sterilisation is mainly used for products which have to be treated gently or which should not come into direct contact with the heating medium. Heating mediums could be steam, hot water or electric heat.