REVERSE OSMOSIS CONCENTRATION of GREEN TEA JUICE |
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| Authors: | ZHANG SHI QUI TAKESHI MATSUURA KAM CHAN |
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| Affiliation: | Division of Chemistry National Research Council of Canada Ottawa, Canada K1A 0R6;Advanced Membrane, Inc. 1100-100 Sussex Drive Ottawa, Canada K1A OR6 |
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| Abstract: | The reverse osmosis concentration of green tea juice was attempted by using membranes prepared from different polymeric materials. the pore sizes of the membranes were also changed in order to investigate the effect of the pore size on the membrane performance. Special attention was focused on the removal of caffeine from the tea juice while retaining other components such as polyphenols and amino acids. Since severe membrane fouling was observed while tea juice was treated at high concentrations, an attempt was made to describe the membrane fouling by a modified gel model that includes the effect of the interaction between the membrane and the tea juice components. |
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