Environmental Science and Pollution Research

, Volume 26, Issue 1, pp 431–445 | Cite as

Performances of Pichia kudriavzevii in decolorization, biodegradation, and detoxification of C.I. Basic Blue 41 under optimized cultural conditions

  • Crăița Maria Roșu
  • Gabriela Vochița
  • Marius Mihășan
  • Mihaela Avădanei
  • Cosmin Teodor Mihai
  • Daniela Gherghel
Research Article


The aim of this study was to evaluate the performances of Pichia kudriavzevii CR-Y103 yeast strain for the decolorization, biodegradation, and detoxification of cationic dye C.I. Basic Blue 41, a toxic compound to aquatic life with long-lasting effects. Under optimized cultural conditions (10.0-g L−1 glucose, 0.2-g L−1 yeast extract, and 1.0-g L−1 (NH4)2SO4), the yeast strain was able to decolorize 97.86% of BB41 (50 mg L−1) at pH 6 within 4 h of incubation at 30 °C under shaken conditions (12,238.00-μg h−1 average decolorization rate) and 100% within 12 h. The UV-Vis spectral analysis, high-performance liquid chromatography (HPLC), and Fourier-transform infrared spectroscopy (FTIR) analysis confirmed the complete decolorization and degradation of the BB41 dye by P. kudriavzevii CR-Y103. Also, other seven yeast strains, isolated from soil, as P. kudriavzevii (CR-Y108, CR-Y119, and CR-Y112), Candida tropicalis CR-Y128, Cyberlindnera saturnus CR-Y125, and Candida solani CR-Y124 have shown a promising decolorizing potential of azo-dye BB41 (99.89–76.09% decolorization). Phytotoxicity, cytotoxicity, and genotoxicity assays on Trifolium pratense and Triticum aestivum seedlings confirmed the high toxicity of BB41 dye (500 ppm), with inhibition on germination rate (%), root and shoot elongation, decreasing of mitoxic index value (with 34.03% in T. pratense and 40.25% in T. aestivum), and increasing the frequency of chromosomal aberrations (6.87 times in T. pratense and 6.25 times in T. aestivum), compared to control. The same biomarkers indicated the nontoxic nature of the BB41 degraded metabolite (500 ppm) obtained after P. kudriavzevii CR-Y103 treatment. Moreover, the healthy monkey kidney cells (Vero cells) had a low sensitivity to BB41 biodegraded products (250 μg mL−1) (MTT cell viability assay) and revealed minor DNA damage (comet assay) compared to BB41 dye treatment. These findings show that P. kudriavzevii could be used in eco-friendly bioremediation technologies, applicable for reducing the toxicity of basic azo-dyes containing wastewaters.


C.I. Basic Blue 41 Pichia kudriavzevii Biodegradation Phytotoxicity Cytotoxicity Genotoxicity 



The authors are grateful to Dr. Liliana Sfichi Duke for revising the English text and language editing assistance.

Funding information

This work was supported financially by the Romanian Ministry of Research and Innovation through the NUCLEU program (Project Nos. PN 16190301and PN 18180301) and a mobility grant (CNCS-UEFISCDI/Project No. PN-III-P1-1.1-MC-2017-0440).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11356_2018_3651_MOESM1_ESM.pdf (723 kb)
ESM 1 (PDF 723 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Crăița Maria Roșu
    • 1
  • Gabriela Vochița
    • 1
  • Marius Mihășan
    • 2
  • Mihaela Avădanei
    • 3
  • Cosmin Teodor Mihai
    • 1
    • 4
  • Daniela Gherghel
    • 1
  1. 1.Department of Experimental and Applied BiologyNIRDBS—Institute of Biological Research IasiIasiRomania
  2. 2.Department of Biology“Alexandru Ioan Cuza” University of IasiIasiRomania
  3. 3.Department of Physics of Polymers and Polymeric Materials“P. Poni” Institute of Macromolecular ChemistryIasiRomania
  4. 4.Advanced Research and Development Center in Experimental Medicine CEMEX“Grigore T. Popa” University of Medicine and PharmacyIasiRomania

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