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Titolo:
DEGRADATION OF LIGNIN-CARBOHYDRATE COMPLEX (LCC) BY WOOD-ROTTING FUNGI .3. STRUCTURAL-ANALYSIS OF WATER-SOLUBLE MATERIALS IN LIQUID CULTUREOF CORIOLUS-VERSICOLOR
Autore:
TSUJIYAMA S; AZUMA J; OKAMURA K;
Indirizzi:
KYOTO PREFECTURAL UNIV,FAC AGR KYOTO 606 JAPAN KYOTO UNIV,FAC AGR,SAKYO KU KYOTO 60601 JAPAN
Titolo Testata:
Mokuzai Gakkaishi
fascicolo: 7, volume: 39, anno: 1993,
pagine: 807 - 813
SICI:
0021-4795(1993)39:7<807:DOLC(B>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHANEROCHAETE-CHRYSOSPORIUM; SPRUCE; BIODEGRADATION; LOCALIZATION; PEROXIDASE;
Keywords:
LIGNIN-CARBOHYDRATE COMPLEX (LCC); BIODEGRADATION OF LCC; WHITE-ROT FUNGUS; CORIOLUS-VERSICOLOR; INITIAL LIGNIN MODIFICATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
S. Tsujiyama et al., "DEGRADATION OF LIGNIN-CARBOHYDRATE COMPLEX (LCC) BY WOOD-ROTTING FUNGI .3. STRUCTURAL-ANALYSIS OF WATER-SOLUBLE MATERIALS IN LIQUID CULTUREOF CORIOLUS-VERSICOLOR", Mokuzai Gakkaishi, 39(7), 1993, pp. 807-813

Abstract

When Coriolus versicolor (L.: Fr. ) Quel. was incubated in a medium containing a water-soluble lignin-carbohydrate complex (LCC-W) as a solecarbon source, the formation of materials precipitated by acidifying (pH 2-3) the culture medium was found to start after 10 days of incubation. This precipitated fraction (P-A) was prepared with various incubation times up to 31 days, and its structural changes were investigated by chemical and spectroscopic analyses. Based on the time course of structural changes of the lignin portion of this fraction, the initialattack by C. versicolor was the formation of new phenolic hydroxyl groups, which probably was followed by an oxidation reaction to form newalpha-carbonyl and carboxyl groups. Although the latter reaction could be explained by the co-operative actions of laccase and other phenoloxidases, an uncharacterized lignin-degrading system was suggested to exist to participate in the former reaction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 07:06:47