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۱Determining Optimum Conditions for Sugarcane Juice Refinement by Pilot Plant Dead–end Ceramic Micro–filtration
اطلاعات انتشار: Journal of Agricultural Science and Technology، دهم،شماره۴،Oct ۲۰۰۸، سال
تعداد صفحات: ۸
The conditions for the refinement of clarified sugarcane juice, including temperature (50o, 60o and 70oC) and pressure (0, 0.5, 1 and 1.5 bars) by micro–filtration membrane technology were investigated. The raw sugarcane juice was initially pre–filtrated with lime and then the juice obtained (clarified juice) processed using a ceramic micro–filter membrane (0.2 micrometer). The characteristics investigated included brix, polarity (sucrose percent), turbidity, color and purity. The results showed that the effects of different process conditions with micro–filtration on reduction of turbidity and color were significant at probably 0.01 and probably 0.05, respectively. For other characteristics, no significant difference was observed. Finally, a temperature of 70oC and transmembrane pressure of 1.5 bar were determined as the optimum conditions for ceramic micro–filtration. Membrane processing at 70oC and 1.5 bars reduced the turbidity, viscosity and color of clarified juice 56.25%, 16.67% and 6.49%, respectively, and increased 0.87 units of purity.
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