Comparison of selected adsorbents for adsorption and desorption of vitamin E from palm fatty acid distillate

B. S. Chu, B. S. Baharin*, Y. B Che Man, S. Y. Quek

*Corresponding author for this work

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4 Citations (Scopus)

Abstract

Performance of four selected adsorbents, namely silica gel (SG), aluminum oxide (AO), synthetic brominated polyaromatic SP 207(SP) and functionalized polyaromatic Dowex Optipore L-285 (DO), for adsorptiondesorption of vitamin E from palm fatty acid distillate (PFAD) was compared. Vitamin E from PFAD was preconcentrated and dissolved in hexane. Batch mode adsorption experiments were carried out by reacting the vitamin E solution with the adsorbents separately in an orbital shaker under controlled conditions. It appeared that increasing initial vitamin E concentration favored adsorption process as indicated by an increase in adsorption capacity and percentage of vitamin E uptake. Results showed that the adsorption process was exothermic for all adsorbents. Isopropanol was used to recover vitamin E from the adsorbents. It was found that increasing reaction temperature resulted in a higher vitamin E recovery. SG was the most suitable adsorbent for separation of vitamin E as it possessed the highest adsorption capacity and recovery among adsorbents under experimental conditions employed.

Original languageEnglish
Pages (from-to)23-33
Number of pages11
JournalJournal of Food Lipids
Volume12
Issue number1
DOIs
Publication statusPublished - Mar 2005
Externally publishedYes

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