Aspergillus niger I-1472 and Pycnoporus cinnabarinus MUCL39533, selected for the biotransformation of ferulic acid to vanillin, are also able to produce cell wall polysaccharide-degrading enzymes and feruloyl esterases

Autor: Laurence Lesage-Meessen, Y Gouy, M. Asther, E Bonnina, J.-F. Thibault, Magali Brunel
Přispěvatelé: Laboratoire de biochimie et technologie des glucides, Institut National de la Recherche Agronomique (INRA), Unité mixte de recherche de biotechnologie des champignons filamenteux, Université de la Méditerranée - Aix-Marseille 2-Institut National de la Recherche Agronomique (INRA)-Université de Provence - Aix-Marseille 1, ProdInra, Migration
Rok vydání: 2001
Předmět:
Zdroj: Enzyme and Microbial Technology
Enzyme and Microbial Technology, Elsevier, 2001, 28, pp.70-80
HAL
ISSN: 0141-0229
DOI: 10.1016/s0141-0229(00)00277-5
Popis: The filamentous fungal strains Aspergillus niger I-1472 and Pycnoporus cinnabarinus MUCL39533, previously selected for the bioconversion of ferulic acid to vanillic acid and vanillin respectively, were grown on sugar beet pulp. A large spectrum of polysaccharide-degrading enzymes was produced by A. niger and very few levels of feruloyl esterases were found. In contrast, P. cinnabarinus culture filtrate contained low amount of polysaccharide-degrading enzymes and no feruloyl esterases. In order to enhance feruloyl esterases in A. niger cultures, feruloylated oligosaccharide-rich fractions were prepared from sugar beet pulp or cereal bran and used as carbon sources. Number of polysaccharide-degrading enzymes were induced. Feruloyl esterases were much higher in maize bran-based medium than in sugar beet pulp-based medium, demonstrating the ability of carbon sources originating from maize to induce the synthesis of feruloyl esterases. Thus, A. niger I-1472 could be interesting to release ferulic acid from sugar beet pulp or maize bran.
Databáze: OpenAIRE