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Hindawi, Scientific World Journal, (6), p. 1124-1131

DOI: 10.1100/tsw.2006.213

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An intensified esterification process of palm oil fatty acid distillate catalyzed by delipidated rice bran lipase

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

An intensified esterification process was operated by circulating 10 l of reaction mixtures, consisting of palm oil fatty acid distillate (PFAD) and glycerol in hexane, through a packed-bed reactor (PBR) filled with 10 kg of delipidated rice bran lipase (RBL). The influence of the process parameters, such as reaction temperature and type of water-removal agent, on the performance of this intensified esterification process were investigated. The highest degree of esterification (61%) was achieved at a reaction temperature of 65 masculineC, using silica gels as the water-removal agent. Thin-layer chromatography (TLC) analysis showed that the major composition of the esterified product was diacylglycerol.