| Filtration kinetics of chitosan separation by electrofiltration. | |
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MedLine Citation:
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PMID: 21681962 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Downstream processing of chitosan requires several technological steps that contribute to the total production costs. Precipitation and especially evaporation are energy-consuming processes, resulting in higher costs and limiting industrial scale production. This study investigated the filtration kinetics of chitosan derived from cell walls of fungi and from exoskeletons of arthropods by electrofiltration, an alternative method, thus reducing the downstream processing steps and costs. Experiments with different voltages and pressures were conducted in order to demonstrate the effect of both parameters on filtration kinetics. The concentration of the biopolymer was obtained by the average factor of 40 by applying an electric field of 4 V/mm and pressure of 4 bars. A series of analytical experiments demonstrated the lack of structural and functional changes in chitosan molecules after electrofiltration. These results, combined with the reduction of energy and processing time, define the investigated method as a promising downstream step in the chitosan production technology. |
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Authors:
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Gözde Gözke; Frank Kirschhöfer; Stefan Heissler; Mirko Trutnau; Gerald Brenner-Weiss; Jelka Ondruschka; Ursula Obst; Clemens Posten |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-13 |
Journal Detail:
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Title: Biotechnology journal Volume: - ISSN: 1860-7314 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-6-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101265833 Medline TA: Biotechnol J Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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Institute of Process Engineering in Life Sciences, Bioprocess Engineering, Karlsruhe Institute of Technology, Karlsruhe, Germany. goezde.goezke@kit.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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