Abstract
Ultrafiltration (UF) of coconut oil was carried out using a Millipore membrane cell at different pressures (0.1–0.4 MPa) and with different molecular weight cutoff membranes, that is,YM-1 (1 kDa), YM-3 (3 kDa), YM-10 (10 kDa), YM-30 (30 kDa), and PLTK-30 (30 kDa). Reduction of free fatty acids (FFAs) was 93.6%, 92.7%, 83.5%, 82.6%, and 81.6% with ethanol, methanol, acetone, n-propanol, and isopropyl alcohol, respectively, in three-stage filtration. The effects of temperature and applied pressure on the permeate flux and oil rejection were also studied with membranes using multistage filtration. As pressure increased from 0.1 to 0.4 MPa, the permeate flux and oil rejection increased linearly. A significant reduction of FFA was observed, which is in proportional with the amount of solvent in the feed used. The oil loss was less at lower temperature (25 °C) and pressure (0.2 MPa). Using PLTK 30 membrane with three-stage filtration, reduction of FFA was achieved up to 93% and 94% with methanol and ethanol solvents, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
