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Open AccessArticle

Yarrowia lipolytica Adhesion and Immobilization onto Residual Plastics

1
Department of Biochemical Engineering, Escola de Química, Universidade Federal do Rio de Janeiro, R.J. 21949-900, Brasil
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CICECO-Aveiro Institute of Materials, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
3
Centre of Polymer Systems, Tomas Bata University in Zlín, Tr. Tomase Bati 5678, 76001 Zlín, Czech Republic
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(3), 649; https://doi.org/10.3390/polym12030649
Received: 3 February 2020 / Revised: 6 March 2020 / Accepted: 10 March 2020 / Published: 12 March 2020
(This article belongs to the Special Issue Surface Chemistry of Polymers)
Research in cell adhesion has important implications in various areas, such as food processing, medicine, environmental engineering, biotechnological processes. Cell surface characterization and immobilization of microorganisms on solid surfaces can be performed by promoting cell adhesion, in a relatively simple, inexpensive, and quick manner. The adhesion of Yarrowia lipolytica IMUFRJ 50682 to different surfaces, especially potential residual plastics (polystyrene, poly(ethylene terephthalate), and poly(tetrafluoroethylene)), and its use as an immobilized biocatalyst were tested. Y. lipolytica IMUFRJ 50682 presented high adhesion to different surfaces such as poly(tetrafluoroethylene) (Teflon), polystyrene, and glass, independent of pH, and low adhesion to poly(ethylene terephthalate) (PET). The adhesion of the cells to polystyrene was probably due to hydrophobic interactions involving proteins or protein complexes. The adhesion of the cells to Teflon might be the result not only of hydrophobic interactions but also of acid–basic forces. Additionally, the present work shows that Y. lipolytica cell extracts previously treated by ultrasound waves (cell debris) maintained their enzymatic activity (lipase) and could be attached to polystyrene and PET and used successfully as immobilized biocatalysts in hydrolysis reactions. View Full-Text
Keywords: polymer surfaces; immobilization; Yarrowia lipolytica; recycling; adhesion polymer surfaces; immobilization; Yarrowia lipolytica; recycling; adhesion
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MDPI and ACS Style

Botelho, A.; Penha, A.; Fraga, J.; Barros-Timmons, A.; Coelho, M.A.; Lehocky, M.; Štěpánková, K.; Amaral, P. Yarrowia lipolytica Adhesion and Immobilization onto Residual Plastics. Polymers 2020, 12, 649.

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