Pap, N. and Kertész, Szabolcs and Pongrácz, E. and Vatai, Gyula and László, Zsuzsanna and Beszédes, Sándor and Hodúr, Cecilia (2009) Concentration of blackcurrant juice by reverse osmosis. DESALINATION, 241 (1-3). pp. 256-264. ISSN 0011-9164
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Abstract
The aim of this study was to examine the applicability of reverse osmosis (RO) for the concentration of blackcurrant juice by AFC-80 polyamide tubular membrane that has a salt rejection greater than 80%. The fresh juice had a total soluble solids content of about 16.5 degrees Brix. The effect of centrifugation followed by depectinization with two commercially available pectinase enzyme preparations (Panzym Super E and Trenolin Rot DF) on the permeate flux has been evaluated. For the description of the concentration process, the resistance-in-series model has been used. It was concluded that the applied RO membrane is suitable for concentration of blackcurrant juice up to 28.6 degrees Brix, which was achieved with the juice that had been treated with Panzym Super E. The total resistances were calculated and compared, taking into account membrane fouling and polarization layer resistance.
| Item Type: | Article |
|---|---|
| Additional Information: | Third Membrane Science and Technology Conference of Visegrad Countries (PERMEA). Siófok, 2–6 September 2007. |
| Uncontrolled Keywords: | Osmosis; MEMBRANE; fouling; concentration (composition); Concentration (process); Tubular membranes; Total soluble solids contents; Total resistances; Salt rejections; RO membranes; Permeate fluxes; Pectinase; Layer resistances; Enzyme preparations; Concentration of; POLYMERS; Membrane fouling; Centrifugation; Agricultural products; Acoustic fields; REVERSE OSMOSIS; Resistance-in-series model; Depectinization; concentration; Blackcurrant juice |
| Subjects: | Q Science / természettudomány > QD Chemistry / kémia T Technology / alkalmazott, műszaki tudományok > TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 06 Aug 2013 10:05 |
| Last Modified: | 06 Aug 2013 10:05 |
| URI: | http://real.mtak.hu/id/eprint/6173 |
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