Porous cellulose as promoter of oil production by the oleaginous yeast Lipomyces starkeyi using mixed agroindustrial wastes

Vassilios Ganatsios, Athanasios A. Koutinas, Argyro Bekatorou, Vassilios Panagopoulos, Ibrahim M Banat, Antonia Terpou, Nikolaos Kopsahelis

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5 Citations (Scopus)
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Abstract

Enhanced single cell oil (SCO) production by the oleaginous yeast Lipomyces starkeyi DSM 70296, immobilised on delignified porous cellulose, is reported. Pure glucose media were initially used. The effects of substrate pH and treatment temperature were evaluated, showing that 30 �C and pH 5.0 were the optimum conditions for SCO production by the immobilised yeast. The immobilisation technique led to increased lipid accumulation and cell growth by 44% and 8%, respectively, in the glucose media, compared to free cells in suspension. This positive effect was also shown when low concentration mixed agro-industrial waste suspensions were used as substrates, leading to 85% enhanced SCO production in comparison with free cells. Higher fatty acid (HFA) analysis showed that yeast immobilization led to increased formation of unsaturated HFAs (6%) and reduced saturated HFAs (5%) compared to free cells.
Original languageEnglish
JournalBioresource Technology
Volume18583
Early online date3 Aug 2017
DOIs
Publication statusE-pub ahead of print - 3 Aug 2017

Keywords

  • Single cell oil
  • Lipomyces starkeyi
  • cellulose
  • immobilisation
  • higher fatty

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