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Clarification of high-added value products from olive mill wastewater

Galanakis, Charis M.; Tornberg, Eva LU and Gekas, Vassilis (2010) In Journal of Food Engineering 99(2). p.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... (More)
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. (C) 2010 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Phenols, Pectin, Nanofiltration, Membrane, Ultrafiltration, Antioxidant, properties
in
Journal of Food Engineering
volume
99
issue
2
pages
190 - 197
publisher
Elsevier
external identifiers
  • wos:000277547300011
  • scopus:77950028537
ISSN
0260-8774
DOI
10.1016/j.jfoodeng.2010.02.018
language
English
LU publication?
yes
id
22961ab5-bfbe-4244-96bc-70baa2dac61a (old id 1617766)
date added to LUP
2010-06-21 11:02:05
date last changed
2018-07-01 04:03:22
@article{22961ab5-bfbe-4244-96bc-70baa2dac61a,
  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. (C) 2010 Elsevier Ltd. All rights reserved.},
  author       = {Galanakis, Charis M. and Tornberg, Eva and Gekas, Vassilis},
  issn         = {0260-8774},
  keyword      = {Phenols,Pectin,Nanofiltration,Membrane,Ultrafiltration,Antioxidant,properties},
  language     = {eng},
  number       = {2},
  pages        = {190--197},
  publisher    = {Elsevier},
  series       = {Journal of Food Engineering},
  title        = {Clarification of high-added value products from olive mill wastewater},
  url          = {http://dx.doi.org/10.1016/j.jfoodeng.2010.02.018},
  volume       = {99},
  year         = {2010},
}