Production of sophorolipids by Starmerella bombicola yeast using new hydrophobic substrates

Mansoor Ul Hassan Shah, Magaret Sivapragasam, Muhammad Moniruzzaman, Md Mahabubur Rahman Talukder, Suzana Bt Yusup, Masahiro Goto

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Sophorolipids (SLs) are surface active compounds that have excellent surface-lowering properties. Typically, SLs are produced using different hydrophobic substrates, such as alkanes, vegetable oils, and industrial effluents. The properties of the SLs are highly dependent on the hydrophobic substrate used for their production. The aim of the present study is to investigate the properties of SLs produced using three new hydrophobic substrates: Tapis oil, Melita oil, and Ratawi oil. The structures of the SLs were determined by Fourier transform infrared spectroscopy. The SLs yields using Tapis, Melita, and Ratawi oil were 26, 21, and 19 g L−1, respectively. The SLs produced using Tapis, Melita, and Ratawi oil reduced the surface tension of pure water to 36.38, 37.84, and 38.92 mN/m, respectively, corresponding to critical micelle concentrations (CMCs) of 54.39, 55.68, and 58.34 mg L−1. These values are comparable with SLs produced using palm oil (surface tension 35.38 mN/m and CMC 48.76 mg L−1). The SLs produced using Tapis oil show a maximum emulsification activity of 71.2%. The produced SLs are active over the pH range 2–10 and for salinity up to 20% (w/v) NaCl. Thus, they show potential for various applications, including microbial enhanced oil recovery and oil spill remediation.

Original languageEnglish
Pages (from-to)60-67
Number of pages8
JournalBiochemical Engineering Journal
Volume127
DOIs
Publication statusPublished - Jan 1 2017

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Yeast
Oils
Yeasts
Substrates
Surface Tension
Critical micelle concentration
Micelles
Surface tension
Petroleum Pollution
Alkanes
Palm oil
Emulsification
Plant Oils
Surface Properties
Vegetable oils
Salinity
Oil spills
Fourier Transform Infrared Spectroscopy
Remediation
Paraffins

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Environmental Engineering
  • Biomedical Engineering

Cite this

Production of sophorolipids by Starmerella bombicola yeast using new hydrophobic substrates. / Shah, Mansoor Ul Hassan; Sivapragasam, Magaret; Moniruzzaman, Muhammad; Talukder, Md Mahabubur Rahman; Yusup, Suzana Bt; Goto, Masahiro.

In: Biochemical Engineering Journal, Vol. 127, 01.01.2017, p. 60-67.

Research output: Contribution to journalArticle

Shah, Mansoor Ul Hassan ; Sivapragasam, Magaret ; Moniruzzaman, Muhammad ; Talukder, Md Mahabubur Rahman ; Yusup, Suzana Bt ; Goto, Masahiro. / Production of sophorolipids by Starmerella bombicola yeast using new hydrophobic substrates. In: Biochemical Engineering Journal. 2017 ; Vol. 127. pp. 60-67.
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