Bioconversion of poly (vinylalcohol) -PVOH- to vanillin in a Phanerochaete chrysosporium culture medium
ABSTRACT: The bioconversion of Phanerochaete chryso-sporium cultures in aqueous poly(vinyl alcohol) – PVAL– solutions was studied. A 50% weight loss was observed within 20 days, caused by a ligninperoxidase – LiP –enzyme which is produced during the secondary metabolism of Phanerochaete chrysosporiu...
- Autores:
-
Mejía Gallón, Amanda Inés
López Osorio, Betty Lucy
Hess, Michael
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2003
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- eng
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/36363
- Acceso en línea:
- https://hdl.handle.net/10495/36363
- Palabra clave:
- Biodegradación Ambiental
Biodegradation, Environmental
Phanerochaete
Poly(vinyl alcohol)
Vanillin
- Rights
- openAccess
- License
- https://creativecommons.org/licenses/by-nc/4.0/
| Summary: | ABSTRACT: The bioconversion of Phanerochaete chryso-sporium cultures in aqueous poly(vinyl alcohol) – PVAL– solutions was studied. A 50% weight loss was observed within 20 days, caused by a ligninperoxidase – LiP –enzyme which is produced during the secondary metabolism of Phanerochaete chrysosporium. The changes of the chemical structure of PVAL were studied by UV- and IR-spectroscopy. The presence of vanillin – the major metabolic reaction product, benzaldehyde, and veratry-lalcohol was determined chromatographically (HPLC) in the extra cellular medium after different reaction times. A possible mechanism of the biological degradation is outlined. |
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