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Decolourisation of Different Dyes by two Pseudomonas Strains Under Various Growth Conditions.

Zabłocka-Godlewska E, Przystaś W, Grabińska-Sota E - Water Air Soil Pollut (2014)

Bottom Line: The best results were reached in shaken and semistatic samples (exception Evans blue).In most cases, dyes were removed faster and better by strain Sz6 than SDz3.At the end of the experiment, in majority of the samples, decrease of phyto- and zootoxicity was observed.

View Article: PubMed Central - PubMed

Affiliation: Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland.

ABSTRACT
The aim of the present study was the decolourisation of mixture of two dyes belonging to different groups by two Pseudomonas fluorescens strains (Sz6 and SDz3). Influence of different incubation conditions on decolourisation effectiveness was evaluated. Dyes used in the experiment were diazo Evans blue (EB) and triphenylmethane brilliant green (BG). Another goal of the experiment was the estimation of toxicity of process by-products. Incubation conditions had a significant influence on the rate of decolourisation. The best results were reached in shaken and semistatic samples (exception Evans blue). After 24 h of experiment in semistatic conditions, BG removal reached up to 95.4 %, EB 72.8 % and dyes mixture 88.9 %. After 120 h, all tested dyes were completely removed. In most cases, dyes were removed faster and better by strain Sz6 than SDz3. At the end of the experiment, in majority of the samples, decrease of phyto- and zootoxicity was observed.

No MeSH data available.


Related in: MedlinePlus

Percentage removal of dyes in static (a), semistatic (b) and shaken samples (c)
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Fig2: Percentage removal of dyes in static (a), semistatic (b) and shaken samples (c)

Mentions: The best results of removal of Evans blue were reached in static samples (Fig. 2a). These results were presented in our previous publication (Zabłocka-Godlewska et al. 2012). Strain Sz6 was more effective in dye removal than SDz3 (after 48 h, about 96 and 87 % dye removal respectively). Finally, the dye was completely removed by both strains. In comparison with the results reached in samples with Evans blue, decolourisation of brilliant green in static conditions was lower (after 48 h SDz3 removed 66.15 % and Sz6 59.9 %). Initial concentration of brilliant green was two times higher than Evans blue. In spite of higher concentration removal of brilliant green by strain SDz3 at the end of experiment reached 91.16 %.Fig. 2


Decolourisation of Different Dyes by two Pseudomonas Strains Under Various Growth Conditions.

Zabłocka-Godlewska E, Przystaś W, Grabińska-Sota E - Water Air Soil Pollut (2014)

Percentage removal of dyes in static (a), semistatic (b) and shaken samples (c)
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3928507&req=5

Fig2: Percentage removal of dyes in static (a), semistatic (b) and shaken samples (c)
Mentions: The best results of removal of Evans blue were reached in static samples (Fig. 2a). These results were presented in our previous publication (Zabłocka-Godlewska et al. 2012). Strain Sz6 was more effective in dye removal than SDz3 (after 48 h, about 96 and 87 % dye removal respectively). Finally, the dye was completely removed by both strains. In comparison with the results reached in samples with Evans blue, decolourisation of brilliant green in static conditions was lower (after 48 h SDz3 removed 66.15 % and Sz6 59.9 %). Initial concentration of brilliant green was two times higher than Evans blue. In spite of higher concentration removal of brilliant green by strain SDz3 at the end of experiment reached 91.16 %.Fig. 2

Bottom Line: The best results were reached in shaken and semistatic samples (exception Evans blue).In most cases, dyes were removed faster and better by strain Sz6 than SDz3.At the end of the experiment, in majority of the samples, decrease of phyto- and zootoxicity was observed.

View Article: PubMed Central - PubMed

Affiliation: Environmental Biotechnology Department, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland.

ABSTRACT
The aim of the present study was the decolourisation of mixture of two dyes belonging to different groups by two Pseudomonas fluorescens strains (Sz6 and SDz3). Influence of different incubation conditions on decolourisation effectiveness was evaluated. Dyes used in the experiment were diazo Evans blue (EB) and triphenylmethane brilliant green (BG). Another goal of the experiment was the estimation of toxicity of process by-products. Incubation conditions had a significant influence on the rate of decolourisation. The best results were reached in shaken and semistatic samples (exception Evans blue). After 24 h of experiment in semistatic conditions, BG removal reached up to 95.4 %, EB 72.8 % and dyes mixture 88.9 %. After 120 h, all tested dyes were completely removed. In most cases, dyes were removed faster and better by strain Sz6 than SDz3. At the end of the experiment, in majority of the samples, decrease of phyto- and zootoxicity was observed.

No MeSH data available.


Related in: MedlinePlus