Progressive Freeze Concentration of Coconut Water: Effect of Circulation Flowrate and Circulation Time
DOI:
https://doi.org/10.11113/jt.v67.2770Keywords:
Freeze concentration, progressive freeze concentration, circulation flowrate, circulation time, coconut waterAbstract
Progressive freeze concentration integrated with a coil crystallizer was applied to concentrate coconut water in order to increase its sugar content. In progressive freeze concentration system, only a single ice is formed as a layer on cooled surface. It is introduced as an alternative in compensating the disadvantages of conventional method of freeze concentration, called suspension freeze concentration. In this research, the efficiency of the progressive freeze concentration system was determined through effective partition constant (K) value and percent increment of sugar content. Hence, the effect of circulation flowrate ranging from 2000 to 2800 ml/min and circulation time from 10 to 18 minutes on those two variables was then investigated through experiments designated using one factor at a time. From the experimental work, it was found that higher efficiency results at higher circulation flowrate of 2800 ml/min based on lower K and high percentage of sugar increment achieved. It was also found that the percentage of the sugar increment is high when the period given for circulating the solution is increased and the most suitable circulation time is 14 minutes.
References
Saat, M., R. Singh, R. G. Sirisinghe, and M. Nawawi. 2002. Rehydration After Exercise With Fresh Young Coconut Water, Carbohydrate-Electrolyte Beverage and Plain Water. J Physiol Anthropol Appl Human Sci. 21: 93–104.
Thijssen, H. A. C. 1975. Effect of Process Conditions in Freeze Drying on Retention of Volatile Compounds. In Goldblith, L. R. R. S. A., and Rothmayr, W. W. (Ed.). Freeze Drying and Advanced Food Technology. London: Academic Press.
Ramaswamy, H. S., and M. Marcotte. 2006a. Separation and Concentration. In Ramaswamy, H. S., and Marcotte, M. (Ed.). Food Processing: Principles and Applications. United States of America: CRC Press.
Ramteke, R. S., N. I. Singh, M. N. Rekha, and W. E. Eipeson. 1993. Methods for Concentration of Fruit Juices: A Critical Evaluation. J. Food Sci. Technol. 30: 391–402.
Cassano, A., C. Conidi, R. Timpone, M. D. Avella, and E. Drioli. 2007. a Membrane-Based Process for the Clarification and The Concentration of The Cactus Pear Juice. J. Food Eng. 80: 914–921.
Deshpande, S. S., M. Cheryan, S. K. Sathe, D. K. Salunkhe, and B. S. Luh. 1984. Freeze Concentration of Fruit Juices. CRC Critical Reviews in Food Science and Nutrition. 20(3): 173–248.
Miyawaki, O. 2001. Progressive Freeze-Concentration: A New Method For High-Quality Concentration of Liquid Food. Food Eng. Progress. 5: 190–194.
Huige, N. J. J., and H. A. C. Thijssen. 1972. Production of Large Crystals by Continuous Ripening In A Stirrer Tank. J. Crystal Growth. 13–14: 483–487.
Liu, L., O. Miyawaki, and K. Hayakawa. 1999. Progressive Freeze Concentration of Tomato Juice. Food Sci Technol Res. 5: 108–112.
Ramos, F. A., J. L. Delgado, E. Bautista, A. L. Morales, and C. Duque. 2005. Changes In Volatiles With The Application of Progressive Freeze Concentration To Andes Berry (Rubus Glaucus Benth). J. Food Eng. 69: 291–297.
Sanchez, J., Y. Ruiz, M. Raventos, J. M. Auleda, and E. Hernandez. 2010. Progressive Freeze Concentration of Orange Juice In A Pilot Plant Falling Film. Innovat. Food Sci. Emerg. Tech. 11: 644–651.
Nazir, S., and M. M. Farid. 2008. Modeling Ice Removal In Fluidized Bed Freeze Concentration of Apple Juice. Am. Chem. J. 54: 2999–3006.
Hernandez, E., M. Raventos, J. M. Auleda, and A. Ibarz. 2009. Concentration of Apple and Pear Juices In A Multi-Plate Freeze Concentrator. Innovat. Food Sci. Emerg. Techn. 10: 348–355.
Miyawaki, O., L. Liu, Y. Shirai, S. Sakashita, and K. Kagitani. 2005. Tubular Ice System For Scale-Up of Progressive Freeze Concentration. J. Food Eng. 69: 107–113.
Rodriguez, M., S. Luque, J. R. Alvarez, and J. Coca. 2000. A Comparative Study of Reverse Osmosis and Freeze Concentration For The Removal of Valeric Acid From Wastewater. Desalination. 127: 1–11.
Jusoh, M. 2010. Development of A Novel System For Progressive Freeze System Process. PhD, Universiti Teknologi Malaysia, Johor, Malaysia.
Bayindirli, L., M. Ozilgen, and S. Ungan. 1993. Mathematical Analysis of Freeze Concentration of Apple Juice. J. Food Eng. 19: 95–107.
Caretta, O., F. Courtot, and T. Davies. 2006. Measurement of Salt Entrapment During The Directional Solidification of Brine Under Forced Mass Convection. J. Crystal Growth. 294: 151–155.
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