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Ultrafiltration Optimization for the Recovery of β-Glucan from Oat Mill Waste by Anna Patsioura; Charis M. Galanakis; Vassilis Gekas is a Engineering article available to read on EtoBox.

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The scope of the current study is to investigate the ultrafiltration process of high molecular weight ␤-glucan molecules with a final purpose to optimize their recovery from oat mill waste. Therefore, standard ␤-glucan solutions were processed in a dead-end cell using three types of membranes (regenerated cellulose, polyethersulfone and polysulfone) under several transmembrane pressures. Optimization was conducted by monitoring performance parameters and retention coefficients for each experimental combination. In terms of membrane type, polysulfone was selected as the most appropriate membrane material since it obtained satisfactory retention coefficient and performance parameter values when the ␤-glucan concentration was less than 600 mg/L. Thereafter, the polysulfone membrane was applied in a pilot cross-flow module instead of a dead-end cell. The retention of ␤-glucan as well as the flux recovery was markedly improved with no important reduction of the permeate flux. Finally, polysulfone membrane was applied in the pilot cross-flow module for the ultrafiltration of ␤-glucan containing feeds (<600 mg/L) recovered from the industrial oat mill waste. Results indicated that the opt

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Author

Anna Patsioura; Charis M. Galanakis; Vassilis Gekas

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0376-7388)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)