Penghasilan asid linoleik berepoksidasi untuk penggunaan tenaga yang diperbaharui

Translated title of the contribution: Epoxidation synthesis of linoleic acid for renewable energy applications

Bashar Mudhaffar Abdullah, Muhammad Rahimi Usop, Jumat Salimon, Darfizzi Derawi, Waled Abdo Ahmed

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Monoepoxidation linoleic acid (MEOA) has advantages for industrial applications. MEOA was synthesized using immobilized Candida antarctica lipase (Novozym 435®). At optimum conditions, higher yield (82.14 %) and medium oxirane oxygen content, OOC (4.91 %) of MEOA were predicted at 15 µL of H2O2, 120 mg of Novozym 435® and 7 hours of reaction time. Fourier Transform Infrared Spectroscopy (FTIR) spectra of the MEOA showed monoepoxide group at 820 cm-1. 1H NMR analysis confirmed the monoepoxide group at 2.92 – 3.12 ppm while the monoepoxide signals of 13C NMR appear at 54.59 – 57.29 ppm. LC-MS analysis shows that of MEOA gives m/z at 296.22 as final product. MEOA exhibited good pour point (PP) of -41 ºC. Flash point (FP) of MEOA increased to 128 ºC comparing with 115 ºC of linoleic acid (LA). In a similar fashion, viscosity index (VI) for LA was 224 generally several hundred centistokes (cSt) more viscous than MEOA 130.8. MEOA was screened to measure their oxidative stability (OT) which was observed at 168 ºC. It is evident that increasing the hydrogen peroxide amount has a strong effect on the reaction kinetics; however, a large excess of hydrogen peroxide results in accumulation of peracid in the final product.

Original languageMalay
Pages (from-to)131-141
Number of pages11
JournalMalaysian Journal of Analytical Sciences
Volume20
Issue number1
Publication statusPublished - 2016

Fingerprint

Epoxidation
Linoleic Acid
Hydrogen Peroxide
Nuclear magnetic resonance
Ethylene Oxide
Candida
Lipase
Reaction kinetics
Industrial applications
Viscosity
Oxygen

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Penghasilan asid linoleik berepoksidasi untuk penggunaan tenaga yang diperbaharui. / Abdullah, Bashar Mudhaffar; Usop, Muhammad Rahimi; Salimon, Jumat; Derawi, Darfizzi; Ahmed, Waled Abdo.

In: Malaysian Journal of Analytical Sciences, Vol. 20, No. 1, 2016, p. 131-141.

Research output: Contribution to journalArticle

Abdullah, Bashar Mudhaffar ; Usop, Muhammad Rahimi ; Salimon, Jumat ; Derawi, Darfizzi ; Ahmed, Waled Abdo. / Penghasilan asid linoleik berepoksidasi untuk penggunaan tenaga yang diperbaharui. In: Malaysian Journal of Analytical Sciences. 2016 ; Vol. 20, No. 1. pp. 131-141.
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