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Title: Clarification of high-added value products from olive mill wastewater
Authors: Galanakis, Charis M.
Tornberg, Eva
Gekas, Vassilis
Scientific Field: Natural Sciences
Scientific Field: Biological Sciences
Subjects: Nanofiltration
Issue Date: 2010
Publisher: Elsevier
Citation: Journal of food engineering, volume 99, issue 2, pages 190-197
Abstract: The objective of the current study is to investigate the clarification of two high-added value products (pectin containing solution and phenol containing beverage) recovered from olive mill wastewater. For this purpose, both liquids were processed with four types of ultrafiltration (100, 25, 10 and 2 kDa) and one nanofiltration membranes under optimum transmembrane pressure. Retention coefficients and performance parameters were monitored for each experiment. The membranes of 25 and 100 kDa showed very satisfying results with regard to the concentration of pectin solutions as they were able to separate it from cations and phenols. The membrane of 25 kDa was also able to partially remove the heavier fragments of hydroxycinnamic acid derivatives and flavonols, and simultaneously to sustain the antioxidant properties of the phenol containing beverage in the permeate stream. Finally, nanofiltration clarified the beverage from cations that passed in the permeate stream, but this process resulted in loss of antioxidant compounds, too
Type: Article
ISSN: 02608774
Rights: © 2010 Elsevier Ltd. All rights reserved
Affiliation: Technical University of Crete
Lund University
Cyprus University of Technology
Journal type: peer reviewed
Country: Greece
Journal Type: Subscription Journal
Appears in Collections:Άρθρα/Articles

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