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Processing
Potato Starch and Potato Protein
Photo: Agricultural Chamber NRW
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As their most important ingredient,
potatoes generally contain an average of 15% starch. Potato
starch is the polysaccharide stored in this tuberous plant.
Around 60% of the applications for potato starch are to
be found on the technical sector, e.g. in the paper, textile
and film industries, as well as for plastic film, detergents
and adhesives.
The foodstuffs and pharmaceuticals industries account
for the remaining 40%:
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in baby food |
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in soups, sauces and dried
vegetables |
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as a basis for powder, filler,
and splitting agents in the manufacture of tablets,
etc. |
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Another application area is the addition
of potato protein to the milk used for rearing calves.
The potato protein is precipitated from the starch in
a special extraction process. After drying, the protein
is processed to an end-product fineness of 99.5% <
75 µm. Alpine's Zirkoplex ZPS classifier mill
has proved to be ideal for this task. This machine is
not only used for processing the potato starch, whereby
an end product fineness of 99.5% < 150 µm
is required, but also for the above-mentioned protein.
In view of the fact that potato starch and potato protein
are organic products, suitable explosion-protection measures
must be taken. |
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1 = Feed bin with dedusting unit, explosion rupture disc
and fluidisation unit in the filter bin
2 = Feed rotary valve
3 = Metal separator
4 = Feed screw
5 = Rotary valve
6 = Zirkoplex ZPS classifier mill
7 = Explosion pressure relief
8 = Explosion venting valve
9 = Air filter with silencer
10 = Spark detector
11 = Flame extinguisher (chem. barrier)
12 = Automatic reverse jet filter with rupture disc
13 = Fan
14 = Exhaust silencer
15 = Sampler
16 = Control cabinet
A = Feed product
B = End product |
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