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Mechanical Dehydration of Potato Tubers

Published online by Cambridge University Press:  03 October 2008

I. B. Carruthers  and
N. W. Pirie
I. B. Carruthers
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts AL5 2JQ
N. W. Pirie
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts AL5 2JQ
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Summary

Mechanical disintegration seems to be the most effective way of damaging the cells in potato tubers so that their juice can be expressed. If disintegration is too intense the pulp is intractable; a grater makes a uniform pulp with suitable texture. With existing continuous equipment it is necessary to press in two stages to get to 40% dry matter and further batch pressing is needed to get to 50%, but experience suggests it should be possible to make a press that would press to > 50% in one operation. Much less energy is needed to press out water rather than evaporate it, but about one-sixth of the tuber dry matter and more than one-half of the N is in the juice.

Type
Research Article
Information
Experimental Agriculture , Volume 12 , Issue 4 , October 1976 , pp. 329 - 335
Copyright
Copyright © Cambridge University Press 1976

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References

REFERENCES

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