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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 (Engelska)Ingår i: Journal of Dispersion Science and Technology, ISSN 0193-2691, E-ISSN 1532-2351, Vol. 14, s. 269-293Artikel i tidskrift (Refereegranskat)
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.

Ort, förlag, år, upplaga, sidor
1993. Vol. 14, s. 269-293
Nationell ämneskategori
Naturvetenskap
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URN: urn:nbn:se:ri:diva-26875OAI: oai:DiVA.org:ri-26875DiVA, id: diva2:1053878
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A763Tillgänglig från: 2016-12-08 Skapad: 2016-12-08 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

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