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Titolo:
DEGRADATION OF LIGNIN-CARBOHYDRATE COMPLEX (LCC) BY WOOD-ROTTING FUNGI .4. ENZYMATIC SPLITTING OF BONDINGS BETWEEN HEMICELLULOSE AND LIGNINVIA QUINONE METHIDE BY CORIOLUS-VERSICOLOR
Autore:
TSUJIYAMA S; AZUMA J; OKAMURA K;
Indirizzi:
KYOTO PREFECTURAL UNIV,FAC AGR,SAKYO KU KYOTO 606 JAPAN KYOTO UNIV,FAC AGR,SAKYO KU KYOTO 60601 JAPAN
Titolo Testata:
Mokuzai Gakkaishi
fascicolo: 12, volume: 39, anno: 1993,
pagine: 1404 - 1408
SICI:
0021-4795(1993)39:12<1404:DOLC(B>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPRUCE; BONDS;
Keywords:
LIGNIN-CARBOHYDRATE COMPLEX; WHITE-ROT FUNGUS; CORIOLUS VERSICOLOR; PHENOLOXIDASES; BENZYL ETHER SPLITTING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
S. Tsujiyama et al., "DEGRADATION OF LIGNIN-CARBOHYDRATE COMPLEX (LCC) BY WOOD-ROTTING FUNGI .4. ENZYMATIC SPLITTING OF BONDINGS BETWEEN HEMICELLULOSE AND LIGNINVIA QUINONE METHIDE BY CORIOLUS-VERSICOLOR", Mokuzai Gakkaishi, 39(12), 1993, pp. 1404-1408

Abstract

Crude enzyme from liquid media of Coriolus versicolor (L.; Fr. ) Quel.released methyl beta-D-glucopyranoside from a LCC model compound, methyl 6-O-vanillyl-beta-D-glucopyranoside, but not from a compound methyl 6-O-veratryl-beta-D-glucopyranoside. Methyl beta-D-glucopyranoside was released from the compound having a free phenolic hydroxyl group, estimating that phenoloxidase secreted by C. versicolor might participate this reaction. Phenoloxidase (laccase from C. versicolor and horseradish peroxidase) treatments to cellulase-treated LCC were compared toan alkaline treatment, resulting in that the similar amounts and composition of monosaccharides were released. These results suggest that enzymic cleavage of benzyl ether bonding between sugars and lignin by C. versicolor occurred via quinone methide by phenoloxidases; laccase and horseradish peroxidase.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 20:33:39