CAROTENOID ISOLATION FROM RED PALM OIL WITH MEMBRANE TECHNOLOGY
Palm oil is a great carotenoid source with abundant amount in Indonesia. Red palm oil (RPO) is a palm oil which is low in free fatty acid and gum that still contains a lot of carotenoids. RPO can be used as a feedstock for biodiesel production (Red Palm Methyl Ester/RPME) through the transesterif...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/56207 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Palm oil is a great carotenoid source with abundant amount in Indonesia. Red
palm oil (RPO) is a palm oil which is low in free fatty acid and gum that still contains a
lot of carotenoids. RPO can be used as a feedstock for biodiesel production (Red Palm
Methyl Ester/RPME) through the transesterification reaction. The RPME product still has
high carotenoid content from RPO. Therefore, this research aims to isolate carotenoids
from RPO using membrane technology.
Al2O3 ceramic membrane reactor (MR) in microfiltration size is used to carry out
the RPO transesterification. In MR, separation of high carotenoid RPME from reaction
feedstock happens through the transesterification reaction so that the reaction conversion
can be increased to optimize the separation of carotenoids from RPO. A polyamide
nanofiltration membrane (NF) is used to separate carotenoids from RPME. Reaction
temperature, MR operating pressure, and NR operating pressure were varied to obtain the
best separation result. Carotenoid content was analyzed with UV-Vis spectrophotometer.
FAME conversion was determined with stoichiometric approach.
Nanofiltration of beta-carotene (480 ppm) mixed FAME solution was run on
various operation pressure from 1,5 to 8 bar. Best separation was obtained from
nanofiltration on 1,5 bar pressure resulting 91,53% carotene rejection and average
permeate flux of 0,1993 kg/m2h. RPO (2037 ppm) was transesterified in MR at various
operating condition (T = 50-65oC, P = 0-15 bar) and best result was obtained at T = 60oC
and P = 1,5 bar resulting 75,25% FAME conversion and 471 ppm carotene content in
transesterification product. RPME product from RPO transesterification in MR is
processed further in the nanofiltration membrane on optimum operating pressure (1,5
bar), resulting 96,3% carotene rejection and average permeate flux of 0,1286 kg/m2h.
RPO transesterification was also run in an conventional reactor for comparison.
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