Volume 10, Issue 4 (2008)                   JAST 2008, 10(4): 351-357 | Back to browse issues page

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Farmani B, Hesari J, Haddadekhodaparast M H, Aharizad S. Determining Optimum Conditions for Sugarcane Juice Refinement by Pilot Plant Dead-end Ceramic Micro-filtration. JAST 2008; 10 (4) :351-357
URL: http://jast.modares.ac.ir/article-23-12106-en.html
1- Department of Food Science and Technology, Ahar Faculty of Agriculture, Tabriz University, Tabriz, Islamic Republic of Iran.
2- Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University, Mashhad, Islamic Republic of Iran.
3- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Tabriz University, Tabriz, Islamic Republic of Iran.
Abstract:   (6557 Views)
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 mem-brane (0.2 micrometer). The characteristics investigated included brix, polarity (sucrose percent), turbidity, color and purity. The results showed that the effects of different proc-ess 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. Mem-brane processing at 70oC and 1.5 bars reduced the turbidity, viscosity and color of clari-fied juice 56.25%, 16.67% and 6.49%, respectively, and increased 0.87 units of purity.
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Subject: Food Science and Technology
Received: 2010/01/28 | Accepted: 2010/01/28 | Published: 2010/01/28

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