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Lipase catalysed synthesis of adipate wax esters in ionic liquid

Abdul Rahman, Mohd Basyaruddin and Basri, Mahiran and Raja Abdul Rahman, Raja Noor Zaliha and Salleh, Abu Bakar (2008) Lipase catalysed synthesis of adipate wax esters in ionic liquid. In: EUCHEM 2008 Conference on Molten Salts and Ionic Liquids, 24-29 Aug. 2008, Copenhagen, Denmark.

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Adipate wax ester shows excellent properties such as its low toxicity, good thermal stability, low volatility and high biodegradability, which made it as a very useful compound and significant to various industrial applications including pharmaceutical, food and coating. Green route organic synthesis via enzymatic synthesis, offers clean and mild reaction conditions provides an opportunity to increase productivity, efficiency and quality output. Considering the industrial importance of the ester, the optimal conditions for upscaling process was performed using Response Surface Methodology (RSM). Ionic liquid of [bmim]PF6 was used as a solvent in the esterification of different chain length of alcohol with adipic acid, and Novozyme as a biocatalyst. Higher percentage of yield (>80%) was obtained for longer alcohol chain (dioleyl adipate) but slightly lower yields were found for medium alcohol chain than in hexane. Ionic liquid become the major interest as it can recycled and remained the efficiency once compared to conventional organic solvent.

Item Type:Conference or Workshop Item (Paper)
Keyword:Adipate wax ester; Ionic liquid
Faculty or Institute:Faculty of Science
ID Code:8877
Deposited By: Samsida Samsudin
Deposited On:27 Dec 2010 08:46
Last Modified:27 Sep 2016 15:11

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