Centrifuges for the production of fruit, vegetable and citrus juices
Separators and decanters can be employed in a variety of stages in the fruit,
vegetable and citrus juice production process.
The undoubtedly most frequent application of centrifuges in the production of fruit,
vegetable and citrus juice is as separators for the clarification of the juice.
Centrifuges for the production of fruit juices
Special forms of decanter can be used instead of presses for the extraction of the juice.
After extraction using presses or decanters, the juice is still cloudy. In order to prevent any
negative influencing of the juices, this cloudiness has to be removed as quickly as possible.
Centrifugal clarifying separators are particularly suitable for the necessary pre-clarification of the juice.
There are a wide range of special applications for centrifuges in the production of fruit juices.
A number of these processes are described briefly below.
The sediment resulting from the juice production process can be further processed using special decanters.
The residues remaining after the use of the widely employed UF plants can be concentrated using a special decanter.
Special separators installed upline can significantly extend the cleaning intervals of the UF plant and increase
the effectiveness of the plant.
The waste water resulting from the juice production process can be clarified using special decanters,
significantly reducing the solids content in the waste water.
Centrifuges for the production of vegetable juices
The same processes are used for vegetable juice extraction as described above for fruit juice extraction.
Depending on the desired cloudiness of the vegetable juice to be produced, special separators can
again be employed for fine clarification of the extracted raw juice.
Centrifuges for the production of citrus fruit juices
The citrus fruit juices are predominantly orange juice, lemon juice and grapefruit juice.
Separators are predominantly used in the production of juices from citrus fruits in the clarification of
the citrus juice after the juice extractor and the finisher. Furthermore they are employed for the extraction
of essential oils and in special processes.
The clarification of the extracted citrus juice downline of the juice extractor and finisher using special
separators can be a single-stage or two-stage process.
Directly extracted juice often also contains undesirable peel oil that above a certain percentage
gives the juice a bitter taste. This peel oil can also be removed using special separators.
The essential oils contained in the citrus peel are valuable and are therefore also extracted. Special separators are again employed for this extraction of the essential oils.
Special processes
During the extraction of the essential oils, undesirable waxes may also be transported into the oil phase.
These waxes can be removed from the oil in a “winterising” process using a special separator.
The pectin contained in the peel of citrus fruits can also be extracted using special
decanters and special separators.
A special process control also enables a clear lemon juice to be produced using separators.
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