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Titolo:
NEW MECHANISM OF THE C-ALPHA-C-BETA CLEAVAGE IN NONPHENOLIC ARYLGLYCEROL BETA-ARYL ETHER LIGNIN SUBSTRUCTURES CATALYZED BY LIGNIN PEROXIDASE
Autore:
LUNDELL T; SCHOEMAKER H; HATAKKA A; BRUNOW G;
Indirizzi:
DSM RES & PATENTS,BIOORGAN CHEM SECT,POB 18 6160 MD GELEEN NETHERLANDS DSM RES & PATENTS,BIOORGAN CHEM SECT,POB 18 6160 MD GELEEN NETHERLANDS UNIV HELSINKI,DEPT APPL CHEM & MICROBIOL SF-00710 HELSINKI FINLAND UNIV HELSINKI,DEPT CHEM SF-00100 HELSINKI 10 FINLAND
Titolo Testata:
Holzforschung
fascicolo: 3, volume: 47, anno: 1993,
pagine: 219 - 224
SICI:
0018-3830(1993)47:3<219:NMOTCC>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHANEROCHAETE-CHRYSOSPORIUM; VERATRYL ALCOHOL; DEGRADING ENZYME; PHLEBIA-RADIATA; MODEL COMPOUNDS; FREE-RADICALS; STEADY-STATE; OXIDATION; BIODEGRADATION; METABOLISM;
Keywords:
LIGNIN MODEL COMPOUND; BIODEGRADATION; BETA-O-4 DIMER; BETA-1 DIMER; ENZYMATIC OXIDATION; CATION RADICAL; BENZYLIC RADICAL; HOMOLYTIC CLEAVAGE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
T. Lundell et al., "NEW MECHANISM OF THE C-ALPHA-C-BETA CLEAVAGE IN NONPHENOLIC ARYLGLYCEROL BETA-ARYL ETHER LIGNIN SUBSTRUCTURES CATALYZED BY LIGNIN PEROXIDASE", Holzforschung, 47(3), 1993, pp. 219-224

Abstract

The degradation of non-phenolic beta-1 and beta-O-4 dimeric lignin model compounds, when catalyzed by lignin peroxidase, is discussed basedon published experimental results. The previously neglected but fundamental differences in the reactions between beta-1 and beta-O-4 modelsare explained in detail. A novel C(alpha)-C(beta) cleavage mechanism in the beta-O-4 compounds is presented taking into account the resonance forms after one-electron oxidation involving the intramolecular transfer of the cation radical center to the C(beta)-ether oxygen.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 15:59:05