Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/13131
Título: | Surface hidrolysis of polyacrylonitrile with nitrile hydrolysing enzymes from Micrococcus luteus BST20 |
Autor(es): | Fischer-Colbrie, Gudrun Matamá, Maria Teresa Heumann, Sonja Martinkova, Ludmila Paulo, Artur Cavaco Gübitz, Georg M. |
Palavras-chave: | Micrococcus luteus Nitrilase Polyacrylonitrile Surface modification |
Data: | Mar-2007 |
Editora: | Elsevier 1 |
Revista: | Journal of Biotechnology |
Resumo(s): | A new Micrococcus luteus strain BST20 was isolated with ability to metabolize PAN polymers as sole carbon source. Out of seven synthetized PAN copolymers containing different moieties of acrylic acid and/or vinyl acetate the polymer with lowest crystallinity (PAN with 5% vinyl acetate) was most easily metabolized. 13C labelled PAN was completely converted to the acrylic acid by this strain. M. luteus BST20 produced membrane-bound nitrile hydrolysing enzymes able to convert nitrile groups on PAN powder surface to the corresponding acids. Similarly, nitrile groups on PAN fabrics were transformed to the corresponding acid as indicated by an K/S increased after dying with Methylene blue and the released ammonia. On small soluble substrates the enzyme system showed a preference for aliphatic and aromatic substituted aliphatic nitriles. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/13131 |
ISSN: | 0168-1656 |
Versão da editora: | http://www.sciencedirect.com |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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SURFACE HYDROLYSIS OF POLYACRYLONITRILE WITH NITRILE HYDROLYSING ENZYMES FROM MICROCOCCUS LUTEUS BST20.pdf | Surface hydrolysis of polyacrylonitrile with nitrile hydrolysing enzymes from Micrococcus luteus BST20 | 336,52 kB | Adobe PDF | Ver/Abrir |