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Selective flocculation with chitosan in E.Coli disintegrates: effects of ionic strength and multivalent metal ions
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
1993 (English)In: Journal of Dispersion Science and Technology, ISSN 0193-2691, E-ISSN 1532-2351, Vol. 14, 269-293 p.Article in journal (Refereed)
Abstract [en]

The effects of ionic strength and multivalent metal ions on the flocculation performance in Escherichia coli cell disintegrates using the polycationic chitosan as a flocculant were investigated. The study showed that ionic strength could be used to optimize the selectivity in flocculation. The best selectivity was obtained at 0.5 M sodium chloride where 95% of the cell debris and 88% of the nucleic acids could be removed from the disintegrate by sedimentation, leaving 99% of proteins and 86% of -galactosidase enzyme activity in clarified solution. We will also discuss the mechanisms for interaction between chitosan and different groups of components in the disintegrate: cell debris particles, nucleic acid polymers and proteins.

Place, publisher, year, edition, pages
1993. Vol. 14, 269-293 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26875OAI: oai:DiVA.org:ri-26875DiVA: diva2:1053878
Note
A763Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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