Filtration of crude canola oil miscella utilizing PVDF membrane: the effects of pretreatments and operating conditions

This study was conducted on adding chemical agents (aqueous solutions of CaCl2, EDTA and SDS) to crude canola oil miscella before ultrafiltration through polyvinylidene fluoride (PVDF) membrane with MWCO 50 kDa in a magnetically stirred flat membrane cell. Operating conditions including pressures 2-...

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Veröffentlicht in:International journal of food engineering 2012-07, Vol.8 (3)
Hauptverfasser: Niazmand, Razieh, Farhoosh, Reza, Razavi, Seyed Mohammad Ali
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container_title International journal of food engineering
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creator Niazmand, Razieh
Farhoosh, Reza
Razavi, Seyed Mohammad Ali
description This study was conducted on adding chemical agents (aqueous solutions of CaCl2, EDTA and SDS) to crude canola oil miscella before ultrafiltration through polyvinylidene fluoride (PVDF) membrane with MWCO 50 kDa in a magnetically stirred flat membrane cell. Operating conditions including pressures 2-5 bar and temperatures 25-55 °C were employed. Permeate flux of pretreated oil samples exhibited sharp risings with increasing temperature and pressure. Except for the oils pretreated with SDS, the rejection of free fatty acids (FFAs) decreased in all oil samples. Increasing the operating pressure to 4 bar decreased the rejection of FFAs. Pretreatment of the oils with SDS and EDTA resulted in higher amounts of phosphorous rejection, while increasing temperature decreased it. Reduction of color values (L, a, and b) of the oil samples was not considerable through the PVDF membrane.
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source De Gruyter journals
subjects aqueous solutions
calcium chloride
canola oil
cell membranes
chemical pretreatment
color
deacidification
degumming
EDTA (chelating agent)
free fatty acids
membrane processing
temperature
ultrafiltration
title Filtration of crude canola oil miscella utilizing PVDF membrane: the effects of pretreatments and operating conditions
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