NDLI: Potato pulp: microbiological characterization, physical modification, and application of this agricultural waste product

Content Provider	Springer Nature Link
Author	Mayer, F. Hillebrandt, Jan Otto
Copyright Year	1997
Abstract	Potato pulp, one of the agricultural waste products obtained in high quantities during starch production, contains starch, cellulose, hemicelluloses, pectin, proteins, free amino acids and salts. It exhibits physical and physicochemical properties of a typical colloid. It is mainly used, in a dried and pelleted form, as cattle feed. Its autochthonic microbial flora (bacteria, fungi) was identified and studied with a view towards the degradative potential of the microorganisms and ways of conserving the pulp for subsequent technical applications; 33 isolates (28 bacteria, 4 fungi, 1 yeast), belonging to 15 genera were characterized. Biological conservation was possible at very low oxygen pressure, brought about by the autochthonic anaerobic microorganisms causing acidification. Chemical conservation was achieved with sorbic aicd. By treatment with hot water vapour under pressure (autoclaving), followed by a pressure release procedure, intact cells in the pulp (both potato cells and microorganisms, not spores) were destroyed, and their contents and wall fragments were set free. This process resulted in low drying costs and was a prerequisite for the production of a powder that can be used as glue or as animal feed.
Starting Page	435
Ending Page	440
Page Count	6
File Format	PDF
ISSN	01757598
Journal	Applied Microbiology and Biotechnology
Volume Number	48
Issue Number	4
e-ISSN	14320614
Language	English
Publisher	Springer-Verlag
Publisher Date	1997-10-24
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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