Influence of nitrogen depletion in the growth of N. oleoabundans on the release of cellular components after beadmilling

Emre Günerken, Els D'Hondt*, Michel Eppink, Kathy Elst, Rene Wijffels

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

29 Citations (Scopus)

Abstract

Cell disruption by bead milling of Neochloris oleoabundans grown under nitrogen repleted (NR) and nitrogen depleted (ND) conditions was evaluated based on the release of biochemicals and biomass to the supernatant. Additionally, energy consumption for cell disruption was calculated per kg of released component. Bead milling of NR cells resulted on average in 34% (w/w) release of biochemicals into the supernatant, with a similar composition as the untreated microalgal biomass. With ND cells, the release was higher and more selective, i.e. 57%, 59%, 68% and 56% (w/w) of respectively biomass, proteins, carbohydrates and lipids whereof 92%, 57% and 46% (w/w) respectively of phospho-, glyco- and neutral lipids.

Original languageEnglish
Pages (from-to)89-95
JournalBioresource Technology
Volume214
DOIs
Publication statusPublished - 2016

Keywords

  • Biochemical release
  • Cell disruption
  • Microalgae
  • Nitrogen depletion

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