International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


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Research Paper | Chemical Engineering | India | Volume 13 Issue 5, May 2024 | Rating: 5 / 10


Forward Osmosis for Concentration of Coconut Water

Shravani M. Wagh | Pooja S Vaghire | Pratibha R. Gawande [3]


Abstract: The industrial thermal processing of foods may have a severe impact on the sensorial and nutritional properties of the final product. Membrane technologies have been extensively studied as alternative processes. Forward osmosis (FO) is a promising membrane technology to be used in food industries. The only driving force of the process is the osmotic pressure difference between the two solutions that flow in counter - current mode on opposite sides of a permeable membrane. Thus, the main advantages of FO, compared to both thermal and conventional membrane processing, include low hydraulic pressure, low treatment temperature, low fouling tendency, high solids content processing capability and easy scale - up. A consistent temperature and pressure were used in the RC and CSP method for coconut water concentration. Salt and sugar were employed as the draw solutions for RC mode. Additionally, seawater and sugar were used as draw solutions for CSP mode. The sugar draw results in the RC mode were successful due to an increase in feed side concentration and a higher - than - expected brix reading of 13.1 measured with a brix metre after the process. Additionally, the F/D ratio and the percentage of dewatering were successful. There was also reverse diffusion when salt was utilised as a draw. Both sugar and seawater were successfully employed as draws for CSP, and there was no back diffusion. The sugar implemented as the draw that sample was submitted for testing, which is supposed to be stored at - 80?c to acquire it in the powder form, yielded acceptable results for brix, F/D, and% dewatering. There was no back diffusion when employing draw as a marine membrane; it operated in good condition. The outcomes for both draws are displayed below. Below is a chart showing how the feed concentration varies with time intervals of 15 minutes for RC and 10 minutes for CSP mode in both operating systems.


Keywords: osmosis permeable membrane


Edition: Volume 13 Issue 5, May 2024,


Pages: 198 - 201


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