Enzyme-Catalyzed Synthesis and Characterization of Octyl Dihydroxystearate from Palm-Based Dihydroxystearic Acid.

DOI Web Site Web Site 2 Citations 24 References
  • AWANG Roila
    Advanced Oleochemical Technology Centre, Malaysian Palm Oil Board
  • BASRI Mahiran
    Enzyme and Microbial Technology Research, Fakulti Sains & Pengajian Alam Sekitar, Universiti Putra Malaysia
  • AHMAD Salmiah
    Advanced Oleochemical Technology Centre, Malaysian Palm Oil Board
  • SALLEH Abu Bakar
    Enzyme and Microbial Technology Research, Fakulti Sains & Pengajian Alam Sekitar, Universiti Putra Malaysia

Search this article

Abstract

Octyl dihydroxystearate was synthesized enzymatically to overcome the problems associated with chemical processes such as high energy costs and degradation of ester. Immobilized enzyme, Lipozyme IM was employed as catalyst in the esterification reaction between dihydroxystearic acid (DHSA) and 1-octanol. The product obtained was characterized by chromatographic and spectroscopic methods (thin-layer chromatography, gas chromatography, fourier transform infrared, nuclear magnetic resonance spectroscopy) as well as wet chemistry. The crude product has a melting point of 59.0°C, saponification value of 140.5 mgKOH/g, hydroxyl value of 223.9 mgKOH/g and acid value of 7.9 mgKOH/g. The yield was about 95% with respect to the amount of DHSA used. The product obtained was found to contain octyl dihydroxystearate, octyl palmitate and octyl stearate. This compound was found to be nonirritating.<br>

Journal

Citations (2)*help

See more

References(24)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top