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ITS » Scientific Articles » Luar ITS
Posted by endry@bio.its.ac.id at 19/12/2014 18:50:43  •  927 Views


ENZYMATIC GRAFTING OF FUNCTIONAL MOLECULES TO THE LIGNIN MODEL DIBENZODIOXOCIN AND LIGNOCELLULOSE MATERIAL

Author :
KUDANGA, TUKAYI; PRASETYO, ENDRY NUGROHO ( none; 197310142000121001 )
SIPILA, JUSSI; NYANHONGO, GIBSON S   GUEBITZ, GEORG M




ABSTRAK

Laccase-mediated grafting of functional molecules presents an eco-friendly approach to functionalize lignocellulose materials. In this study functional molecules in the form of reactive phenolic amines hydrophobicity enhancing fluorophenols and selected wood preservatives were for the first time successfully coupled onto the lignin model compound dibenzodioxocin Db as demonstrated by HPLC-MS analysis. A 11-coupling was demonstrated for various combinations including Db and tyramine m z 620.5 Db and 3-O-methyldopamine m z 650.5 Db and 4-hydroxy-3-methoxybenzylamine m z 636.5 Db and 4-fluoro-2-methylphenol m z 609.5 and Db and 2-phenylphenol m z 653.5. Fungal laccases from Trametes hirsuta and T. villosa were more efficient in mediating the coupling of tyramine to dibenzodioxocin and beech Fagus sylvatica wood than a Bacillus sp. laccase with lower redox potential. This work presents for the first time a model for functionalizing of lignocellulose using the lignin model dibenzodioxocin.



KeywordsLaccase; Enzymatic functionalization; Dibenzodioxocin; Lignin
 
Subject:  Lignin
Date Create: 05/03/2010
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-Article-99015140000150
Collection ID: 99015140000150
Call Number: 676.5 Kud e


Source
article of Enzyme and Microbial Technology Volume 46, Issues 3–4, 5 March 2010, Pages 272–280

Coverage
ITS Community

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Copyright © 2014 Elsevier B.V. except certain content provided by third parties. ScienceDirect® is a registered trademark of Elsevier B.V.




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ITS-Article-99015140000150-34881.pdf



[ Link of Contents]
  1. ENZYMATIC GRAFTING OF FUNCTIONAL MOLECULES TO THE LIGNIN MODEL DIBENZODIOXOCIN AND LIGNOCELLULOSE MATERIAL
    http://www.sciencedirect.com/science/article/pii/S014102290900252X



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