Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Sonja Heumann"'
Autor:
Doris Ribitsch, Sonja Heumann, Gibson S. Nyanhongo, Andreas Kandelbauer, Sabine Zitzenbacher, Rosario Diaz Rodriguez, Helmut Schwab, Annemarie Marold, Enrique Herrero Acero, Katrin Greimel, Marc Schroeder, Anita Dellacher, Georg M. Guebitz
Publikováno v:
Journal of Molecular Catalysis B: Enzymatic. 79:54-60
A two step enzymatic process for grafting phenolics onto polyamides (PAs) was developed in order to impart special functionalities to inert PA. Therefore, a polyamidase (NfpolyA) from Nocardia farcinica was overexpressed in Escherichia coli BL21-Gold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f6b57f5a18bff8e067f91bbdb1b0bce
https://doi.org/10.1016/j.molcatb.2012.03.019
https://doi.org/10.1016/j.molcatb.2012.03.019
Autor:
Helmut Schwab, Giuliano Freddi, Ruth Birner-Gruenberger, Georg M. Guebitz, Thomas Weber, Ilaria Donelli, Sigrid Deller, Karl-Heinz Maurer, Regina Leber, Peter Remler, Inge Eiteljoerg, Petra Siegert, Enrique Herrero Acero, Sonja Heumann, Katrin Greimel, Eva Trotscha, Doris Ribitsch
Publikováno v:
Biotechnology Progress. 27:951-960
From a screening on agar plates with bis(benzoyloxyethyl) terephthalate (3PET), a Bacillus subtilis p-nitrobenzylesterase (BsEstB) was isolated and demonstrated to hydrolyze polyethyleneterephthalate (PET). PET-hydrolase active strains produced clear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f5c7b33624769c814c61e06d0d6b94b
https://doi.org/10.1002/btpr.610
https://doi.org/10.1002/btpr.610
Autor:
Sonja Heumann, Susan Billig, Julian Ihssen, Wolfgang Zimmermann, Artur Cavaco-Paulo, Justyna Teresa Korpecka, Manfred Zinn, Georg M. Guebitz
Publikováno v:
Macromolecular Symposia. 296:342-346
Functionalisation of synthetic polymers by using enzymes has been recently demonstrated. The major advantage of enzymes over chemical processes lies in their surface specific and endo-wise mode of action. Surface hydrophilisation of PET with lipases
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b935044f9107eeaddd7b1d035edf349
https://doi.org/10.1002/masy.201051047
https://doi.org/10.1002/masy.201051047
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 46:6435-6443
Alkaline and enzymatic hydrolyzes of poly(ethylene terephthalate) fabrics (PET) were mechanistically compared based on released degradation products (HPLC-UV-RI) and changes in surface properties [hydrophilicity, cationic dyeing, X-ray photoelectron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58e0831f545a58c70b2b21fb5f140321
https://doi.org/10.1002/pola.22952
https://doi.org/10.1002/pola.22952
Autor:
Gudrun Fischer-Colbrie, Artur Cavaco-Paulo, Sonja Heumann, Georg M. Guebitz, Fernanda Sousa, Stefan Liebminger, Anita Eberl
Publikováno v:
Biocatalysis and Biotransformation. 25:171-177
A polyethylene terephthalate (PET) model substrate, bis-(benzoyloxyethyl)terephthalate (3PET), was used to screen for micro-organisms producing enzymes hydrolyzing PET. From this screen, a strain growing on 3PET was isolated and identified as Penicil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66b33e152125e4e95b00e91a9f31e982
https://doi.org/10.1080/10242420701379734
https://doi.org/10.1080/10242420701379734
Autor:
Sonja Heumann, Anita Eberl, Georg Gübitz, Stefan Liebminger, Herbert Pobeheim, Eva Almansa, Artur Cavaco-Paulo, Gudrun Fischer-Colbrie
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Recently the potential of enzymes for surface hydrophilisation and/or functionalisation of polyethyleneterephthalate (PET) and polyamide (PA) has been discovered. However, there was no correlation between enzyme class/activity (e.g. esterase, lipase,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04c5f0f7d0d2d2b7cb1b35e29a83849e
https://doi.org/10.1016/j.jbbm.2006.02.005
https://doi.org/10.1016/j.jbbm.2006.02.005
Autor:
Melanie Herrmann, Amina Wirth, Artur Cavaco-Paulo, Gudrun Fischer-Colbrie, Georg M. Guebitz, Sonja Heumann, Arja Puolakka
Publikováno v:
Biocatalysis and Biotransformation. 24:419-425
A new strain of Agrobacterium tumefaciens (BST05) was found to grow on polyacrylonitrile (PAN; 13C labelled) converting the polymer to polyacrylic acid as shown by solid state NMR. When cultivated in a medium containing acetonitrile the bacterium pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::700ef7d18241581572410d5f715bfc0b
https://doi.org/10.1080/10242420601033977
https://doi.org/10.1080/10242420601033977
Autor:
Doris Ribitsch, R. Leber, Petra Siegert, Ruth Birner-Gruenberger, Inge Eiteljoerg, J. Lange, Wolfgang Karl, Karl Gruber, Jochen Prof. Dr. Gerlach, Georg M. Guebitz, Helmut Schwab, P. Remler, Sonja Heumann, K.H. Maurer, Gabriele Berg
Publikováno v:
Journal of biotechnology. 157(1)
A large strain collection comprising antagonistic bacteria was screened for novel detergent proteases. Several strains displayed protease activity on agar plates containing skim milk but were inactive in liquid media. Encapsulation of cells in algina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::030d65647cc775b2906c678da17a5dcf
https://pubmed.ncbi.nlm.nih.gov/21983234
https://pubmed.ncbi.nlm.nih.gov/21983234
Autor:
Anita Eberl, Sonja Heumann, Franz Kaufmann, Georg M. Guebitz, Gudrun Fischer-Colbrie, Artur Cavaco-Paulo, Herbert Pobeheim, Doris Ribitsch
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
An alkali stable polyamidase was isolated from a new strain of Nocardia farcinica. The enzyme consists of four subunits with a total molecular weight of 190 kDa. The polyamidase cleaved amide and ester bonds of water insoluble model substrates like a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b1aabef2b8a061c593dbe29872411fe
https://hdl.handle.net/1822/17322
https://hdl.handle.net/1822/17322
Autor:
Georg M. Guebitz, Anita Eberl, Artur Cavaco-Paulo, Tina Brückner, Sonja Heumann, Franz Kaufmann, Wolfgang Kroutil, Rita Araújo
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
A lipase from Thermomyces lanuginosus and cutinases from Thermobifida fusca and Fusarium solani hydrolysed poly(ethylene terephthalate) (PET) fabrics and films and bis(benzoyloxyethyl) terephthalate (3PET) endo-wise as shown by MALDI-Tof-MS, LC–UVD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c567765da85bc08d565065d3fd28928