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Chemical Preservation of Partially Dried Potato Pulp

Published online by Cambridge University Press:  03 October 2008

J. Lacey  and
N. W. Pirie
J. Lacey
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts AL5 2JQ
N. W. Pirie
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts AL5 2JQ
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Summary

Mechanically dehydrated potato pulp containing up to 50% dry matter was stored, without visible deterioration, for up to 25 weeks after treatment with at least 0·3% of propionic acid. Wetter pulps required more acid for satisfactory preservation. Thorough mixing was important if maximum storage periods were to be achieved. Ammonia was less satisfactory as a preservative. No visible deterioration occurred while ammonia vapour was present, but bacterial growth was still found even after the addition of about 0·7% ammonia to pulp containing 40–45% dry matter.

Type
Research Article
Information
Experimental Agriculture , Volume 12 , Issue 4 , October 1976 , pp. 337 - 340
Copyright
Copyright © Cambridge University Press 1976

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References

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