Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 562315
Title Elevated viscosities in a simulated moving bed for γ-aminobutyric acid recovery
Author(s) Schultze-Jena, A.; Boon, M.A.; Vroon, R.C.; Bussmann, P.J.Th.; Janssen, A.E.M.; Padt, A. van der
Source Journal of Separation Science (2020). - ISSN 1615-9306
DOI https://doi.org/10.1002/jssc.201900785
Department(s) BBP Biorefinery & Sustainable Value Chains
VLAG
Food Process Engineering
Publication type Refereed Article in a scientific journal
Publication year 2020
Keyword(s) chromatography - concentration profile - productivity - simulated moving bed - viscosity
Abstract

Process streams of agro-food industries are often large and viscous. In order to fractionate such a stream the viscosity can be reduced by either a high temperature or dilution, the former is not an option in case of temperature sensitive components. Such streams are diluted prior to chromatographic fractionation, resulting in even larger volumes and high energy costs for sub-sequential water removal. The influence of feed viscosity on the performance of simulated moving bed chromatography has been investigated in a case study of the recovery of a γ-aminobutyric acid rich fraction from tomato serum. This work addresses the chromatographic system design, evaluates results from a pilot scale operation, and uses these to calculate the productivity and water use at elevated feed concentration. At the two higher feed viscosities (2.5 and 4 mPa·s) water use is lower and productivity higher, compared to the lowest feed viscosity (1 mPa·s). The behavior of the sugars for different feed viscosities can be described well by the model using the ratio of feed to eluent as dilution factor. The behavior of γ-aminobutyric acid is highly concentration dependent and the recovery could not be accurately predicted.

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