Yarrowia lipolytica Adhesion and Immobilization onto Residual Plastics
authors Botelho, A; Penha, A; Fraga, J; Barros-Timmons, A; Coelho, MA; Lehocky, M; Stepankova, K; Amaral, P
nationality International
journal POLYMERS
author keywords polymer surfaces; immobilization; Yarrowia lipolytica; recycling; adhesion
keywords LIPASE PRODUCTION; HYDROPHOBICITY
abstract 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.
publisher MDPI
year published 2020
volume 12
issue 3
digital object identifier (doi) 10.3390/polym12030649
web of science category Polymer Science
subject category Polymer Science
unique article identifier WOS:000525952000148
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  impact metrics
journal analysis (jcr 2019):
journal impact factor 3.426
5 year journal impact factor 3.636
category normalized journal impact factor percentile 82.584
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