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Influence of tween 80 on lipid metabolism of an Aspergillus niger strain

Applied Biochemistry and Biotechnology volume 101, pages 229–238 (2002)Cite this article

Abstract

Addition of 0.1% of nonionic surface-active Tween 80 to a medium optimized for pectolytic enzyme production of Aspergillus niger increased the amount of enzymes excreted by 70%. In the presence of Tween 80 the amount of sterol esters and triacylglycerols was increased. During the course of cultivation the amounts of precursors for ergosterol biosynthesis diminished with an increase of ergosterol. A. niger incorporated cholesterol from the medium, partly converting it to cholesterol esters. Sterol esters were formed only with selected fatty acids. Oleic acid, the hydrophobic part of Tween 80, was mainly incorporated in phospholipids and glycolipids.

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Authors and Affiliations

  1. National Institute of Chemistry, Hajdrihova 19, PO Box 30, S1 1115, Ljubljana, Slovenia

    T. Nemec & K. Jernejc

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  1. T. Nemec
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  2. K. Jernejc
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Correspondence to K. Jernejc.

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Nemec, T., Jernejc, K. Influence of tween 80 on lipid metabolism of an Aspergillus niger strain. Appl Biochem Biotechnol 101, 229–238 (2002). https://doi.org/10.1385/ABAB:101:3:229

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  • DOI: https://doi.org/10.1385/ABAB:101:3:229

Index Entries

  • Sterols
  • surface-active substances
  • Tween 80
  • phospholipids
  • triacylglycerols
  • Aspergillus niger