Citation
Abd. Rahman, Nur Fariza and Basri, Mahiran and Abdul Rahman, Mohd Basyaruddin and Raja Abdul Rahman, Raja Noor Zaliha and Salleh, Abu Bakar
(2011)
High yield lipase-catalyzed synthesis of Engkabang fat esters for the cosmetic industry.
Bioresource Technology, 102 (3).
pp. 2168-2176.
ISSN 0960-8524; ESSN: 1873-2976
Abstract
Engkabang fat esters were produced via alcoholysis reaction between Engkabang fat and oleyl alcohol, catalyzed by Lipozyme RM IM. The reaction was carried out in a 500 ml Stirred tank reactor using heptane and hexane as solvents. Response surface methodology (RSM) based on a four-factor-five-level Central composite design (CCD) was applied to evaluate the effects of synthesis parameters, namely temperature, substrate molar ratio (oleyl alcohol: Engkabang fat), enzyme amount and impeller speed. The optimum yields of 96.2% and 91.4% were obtained for heptane and hexane at the optimum temperature of 53.9 °C, impeller speeds of 309.5 and 309.0 rpm, enzyme amounts of 4.82 and 5.65 g and substrate molar ratios of 2.94 and 3.39:1, respectively. The actual yields obtained compared well with the predicted values of 100.0% and 91.5%, respectively. Meanwhile, the properties of the esters show that they are suitable to be used as ingredient for cosmetic applications.
Download File
Additional Metadata
Actions (login required)
 |
View Item |
