http://www.cnr.it/ontology/cnr/individuo/prodotto/ID297963
Clarification of pomegranate juice (punica granatum L.) by hollow fibre membranes: Analyses of membrane fouling and performance (Articolo in rivista)
- Type
- Label
- Clarification of pomegranate juice (punica granatum L.) by hollow fibre membranes: Analyses of membrane fouling and performance (Articolo in rivista) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1002/jctb.4381 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Cassano A.; Conidi C.; Tasselli F. (literal)
- Pagina inizio
- Pagina fine
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-84899042942&partnerID=q2rCbXpz (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Institute on Membrane Technology ITM-CNR, c/o University of Calabria via P. Bucci, 17/C I-87030 Rende, (Cosenza) Italy (literal)
- Titolo
- Clarification of pomegranate juice (punica granatum L.) by hollow fibre membranes: Analyses of membrane fouling and performance (literal)
- Abstract
- BACKGROUND:Membrane based clarification of fruit juiceshas becomeapopular unitoperation inmodernfruit juice processing
industries. In this work modified poly(ether ether ketone) and polysulfone hollow fibre membranes, with high water flux
and molecular weight cut-off, were prepared via the dry-wet spinning technique through the phase inversion process and
characterized by scanning electron microscopy,water permeability and dextran rejection. The preparedmembraneswere used
to clarify pomegranate juice with the aim to preserve the phenolic fraction and to obtain high permeation fluxes. The effect of
transmembrane pressure and axial feed velocity on permeation flux and hydraulic resistances of the prepared membranes was
investigated.
RESULTS: Permeate fluxes increased by increasing the axial velocity of the juice. The flow-pressure curves followed the
gel-polarization model. All resistances, with the exception of the membrane resistance increased by increasing the operating
pressure and decreased with the axial feed velocity. Polysulfone membranes exhibited higher steady state permeate flux
(47 Lm-2 h-1) and lower rejection towards flavonoids (24.1%) and phenolic compounds (25.1%) in selected operating conditions.
CONCLUSION: Polysulfone membranes were suitable for preserving phenolic compounds in the clarification of pomegranate
juice. For these membranes operating conditions giving maximum permeation fluxes and minimum fouling index were
identified. (literal)
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