Production of chemoenzymatic catalyzed monoepoxide biolubricant

Optimization and physicochemical characteristics

Jumat Salimon, Nadia Salih, Bashar Mudhaffar Abdullah

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Linoleic acid (LA) is converted to per-carboxylic acid catalyzed by an immobilized lipase from Candida antarctica (Novozym 435). This per-carboxylic acid is only intermediate and epoxidized itself in good yields and almost without consecutive reactions. Monoepoxide linoleic acid 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (MEOA) was optimized using D-optimal design. At optimum conditions, higher yield (82.14) and medium oxirane oxygen content (OOC) (4.91) of MEOA were predicted at 15L of H2O2, 120mg of Novozym 435, and 7h of reaction time. In order to develop better-quality biolubricants, pour point (PP), flash point (FP), viscosity index (VI), and oxidative stability (OT) were determined for LA and MEOA. The results showed that MEOA exhibited good low-temperature behavior with PP of - 41 C. FP of MEOA increased to 128 C comparing with 115 C of LA. In a similar fashion, VI for LA was 224 generally several hundred centistokes (cSt) more viscous than MEOA 130.8. The ability of a substance to resist oxidative degradation is another important property for biolubricants. Therefore, LA and MEOA were screened to measure their OT which was observed at 189 and 168 C, respectively.

Original languageEnglish
Article number693848
JournalJournal of Biomedicine and Biotechnology
Volume2012
DOIs
Publication statusPublished - 2012

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Linoleic Acid
Carboxylic Acids
Viscosity
Ethylene Oxide
Candida
stearic acid
Lipase
Oxygen
Degradation
Temperature
Novozyme 435

ASJC Scopus subject areas

  • Biotechnology
  • Molecular Medicine
  • Genetics
  • Molecular Biology
  • Health, Toxicology and Mutagenesis
  • Medicine(all)

Cite this

Production of chemoenzymatic catalyzed monoepoxide biolubricant : Optimization and physicochemical characteristics. / Salimon, Jumat; Salih, Nadia; Abdullah, Bashar Mudhaffar.

In: Journal of Biomedicine and Biotechnology, Vol. 2012, 693848, 2012.

Research output: Contribution to journalArticle

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