Citation
Abstract
Kojic acid ester was synthesized from acyl donor (fatty acid/palm oil) and kojic acid by esterification using lipase as a biocatalyst in an organic medium. Analysis of the product using GC and FTIR showed the presence of kojic acid ester. The gas chromatography-mass spectrometry (GC-MS) analysis and 1H-NMR and 13C-NMR spectral data confirmed the molecular structure of the kojic acid ester. Among the enzymes tested,lipase from Pseudomonas cepacia gave the highest synthetic specific activity. Oleic acid was found to be the best substrate with which to produce the ester in acetonitrile. The optimum conditions for the synthesis of kojic acid derivatives using Pseudomonas cepacia lipase were time, 24 hr, temperature, 50oC, amount of enzyme, 0.15 g, solvent of log P = -0.33, mole ratio of 4 (kojic acid/oleic acid), with no added water, no control of water activity and oleic acid as substrate.
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Official URL or Download Paper: http://jopr.mpob.gov.my/enzymatic-synthesis-and-ch...
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Additional Metadata
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Biotechnology and Biomolecular Sciences Faculty of Science |
| Publisher: | Malaysian Palm Oil Board |
| Keywords: | Esterification; Lipase; Pseudomonas cepacia; Synthesize; Kojic acid ester |
| Depositing User: | Najwani Amir Sariffudin |
| Date Deposited: | 05 Mar 2014 07:37 |
| Last Modified: | 28 Sep 2016 02:02 |
| URI: | http://psasir.upm.edu.my/id/eprint/14539 |
| Statistic Details: | View Download Statistic |
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