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Vol. 29 No. 10 (2017): Vol 29 Issue 10

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Four Factor Surface Response Optimization of Ethyl Palmitate from Terminalia cattapa L. Kernel Oil

https://doi.org/10.14233/ajchem.2017.20580
Erin Ryantin Gunawan
Department of Chemistry, Faculty Mathematics and Science, University of Mataram, Mataram, Indonesia
Dedy Suhendra
Department of Chemistry, Faculty Mathematics and Science, University of Mataram, Mataram, Indonesia
Arista Dewi Nurita
Department of Chemistry, Faculty Mathematics and Science, University of Mataram, Mataram, Indonesia
Desy Komalasari
Department of Mathematics, Faculty Mathematics and Science, University of Mataram, Mataram, Indonesia

Corresponding Author(s) : Erin Ryantin Gunawan

erinryantin@unram.ac.id

Asian Journal of Chemistry, Vol. 29 No. 10 (2017): Vol 29 Issue 10

Abstract

Optimization of ethyl palmitate through enzymatic reaction with lipozyme of Terminalia cattapa L. kernel oil and ethanol was carried out. Response surface methodology (RSM) based on a five-level four-factor central composite rotatable design (CCRD) was used to evaluate the interactive effects of synthesis, of reaction time (3-7 h), temperature (35-55 °C), amount of enzyme (0.1-0.3 g) and substrate molar ratio (kernel oil to ethanol, 1:1-1:3) on the percentage yield of ethyl palmitate The optimum conditions obtained in the amount of enzyme 0,19 g, molar ratio of ketapang seed oil:ethanol of 1:2,5 (g/g), a reaction time of 4.68 h and a temperature of 44.82 °C with a predicted yield of 40.031 %. The model recommended to obtain optimal results is a quadratric model with R-squared value of 0.7955.

Keywords

Ethyl palmitate Terminalia cattapa L. Kernel oil Four factor surface Response surface methodology Lipozyme
Gunawan, E. R., Suhendra, D., Nurita, A. D., & Komalasari, D. (2017). Four Factor Surface Response Optimization of Ethyl Palmitate from Terminalia cattapa L. Kernel Oil. Asian Journal of Chemistry, 29(10), 2107–2112. https://doi.org/10.14233/ajchem.2017.20580
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