Production of Metabolites with Antioxidant and Emulsifying Properties by Antarctic Strain Sporobolomyces salmonicolor AL(1)

Stela Dimitrova, Kostantsa Pavlova, Ludmil Lukanov, Elena Korotkova, Ekaterina Victorovna Petrova, Plamen Zagorchev, Margarita Kuncheva

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The Sporobolomyces salmonicolor AL1 Antarctic strain was cultivated and two bioproducts were obtained: exopolysaccharide and biomass. The biologically active substances ergosterol, torularhodin, torulene, β-carotene and CoQ10 were extracted from the biomass and were quantified as follows: ergosterol 5.2 ± 0.2 mg/g, torularhodin 458.3 ± 24.5 μg/g, torulene 273.7 ± 14.5 μg/g, β-carotene 129.2 ± 7.3 μg/g and coenzyme Q10 (CoQ10) 236.1 ± 12.1 μg/g. Their antioxidant activity was estimated according to the cathode voltammetry method. The most pronounced antioxidant activity (according to trolox) was exhibited by β-carotene 3.78, followed by CoQ10 3.60, both of them being the main contributors to the total extract activity of 3.19. The biologically active metabolites in combination with exoglucomannan as emulsifier were used for the creation of model emulsion systems characterised by great stability. The absorption of UVA rays by the model emulsions was studied.

Original languageEnglish
Pages (from-to)301-311
Number of pages11
JournalApplied Biochemistry and Biotechnology
Volume169
Issue number1
DOIs
Publication statusPublished - Jan 2013

Keywords

  • Antioxidant activity
  • Carotenoids
  • Coenzyme Q
  • Ergosterol
  • Exopolysaccharide
  • S. salmonicolor AL

ASJC Scopus subject areas

  • Biochemistry
  • Biotechnology
  • Bioengineering
  • Applied Microbiology and Biotechnology
  • Molecular Biology

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