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Assessment of the impact of bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes)
Abstract
The assessment of the impact of the bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes) Tecoflex® and Tecothane® is presented. The polyurethane samples were incubated with pure cultures of the microorganisms at 30 °C for five months. The changes in the chemical structure of the polymers were evaluated using loss of weight and contact angle measurements, infrared spectroscopy (ATR-FTIR), mass spectrometry (Py-MS), differential scanning calorimetry (DSC) and the thermogravimetric analysis (TG). In addition, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were applied for imaging changes in surface morphology of the poly(ether urethanes). Comparative analysis of these polyurethane features before and after incubation with the microorganism cultures showed that Tecoflex® was less stable than Tecothane®. This can be explained by the presence of aromatic rings within the diphenylmethane diisocyanate group in the chemical structure of the latter. Bacterial strains of Bacillus subtilis and Pseudomonas fluorescens showed a much more prominent destructive effect compared to the strain of yeast Y. lipolytica.
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Authors (10)
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Agnieszka Stępień
- Uniwersytet Rzeszowski, Wydział Medyczny Instytut pielęgniarstwa i nauk o zdrowiu, Zakład Dietetyki
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Jacek Zebrowski
- Uniwersytet Rzeszowski, Instytut Biotechnologii Zakład fizjologii roślin
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Valentina Boyko
- Narodowa Akademia Nauk, Wydział Chemii Instytut Chemii Makromolekularnej
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Sergii Riabov
- Narodowa Akademia Nauk, Wydział Chemii Instytut Chemii Makromolekularnej
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Tatiana Dmitrieva
- Narodowa Akademia Nauk, Wydział Chemii Instytut Chemii Makromolekularnej
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Vladimir Bortnitskiy
- Narodowa Akademia Nauk, Wydział Chemii Instytut Chemii Makromolekularnej
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Mykhailo Gonchar
- Narodowa Akademia Nauk, Instytut biologii komórki Katedra Biotechnologii Analitycznej
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Renata Wojnarowska-nowak
- Uniwersytet Rzeszowski Centrum Mikroelektroniki i Nanotechnologii
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Joanna Ryszkowska
- Politechnika Warszawska, Wydział Inżynierii Materiałowej
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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POLYMER TESTING
no. 63,
pages 484 - 493,
ISSN: 0142-9418 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Stępień A., Zebrowski J., Piszczyk Ł., Boyko V., Riabov S., Dmitrieva T., Bortnitskiy V., Gonchar M., Wojnarowska-Nowak R., Ryszkowska J.: Assessment of the impact of bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes)// POLYMER TESTING. -Vol. 63, (2017), s.484-493
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.polymertesting.2017.08.038
- Verified by:
- Gdańsk University of Technology
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