Journal of Oil Palm Research Vol. 3 No. 1  1991 June p.  317-323

Adsorption of palm oil monoglycerides using rice husk ash

Author(s): OOI Tian Lye*; LEONG Wan Leong*

It is shown that monoglycerides can be selectively adsorbed on rice husk ash from crude palm oil-hexane miscella or crude palm oil. The adsorbed monoglycerides were identified by gas chromatography and GC/MS. The major fatty acids of the monoglycerides were found to be palmitic and oleic acids. In model experiments, 0.2%(w) of monopalmitin added to refined, bleached and deodorized palm olein could be removed completely using rice husk ash; about 48 m mol or 15.84 mg of monopalmitin were adsorbed by one gram of ash.

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* Palm Oil Research Institute of Malaysia, P O Box 10620, 50720 Kuala Lumpur

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