Evaluation of hydrolysis products of xylans by xylan-degrading enzymes from Humicola grisea var. thermoidea and Aspergillus fumigatus Fresenius

Authors
Silva, CHCE da Fonseca, AS Neto, SDL Ximenes, ED Puls, J Ferreira, EX
Citation
Chce. Silva et al., Evaluation of hydrolysis products of xylans by xylan-degrading enzymes from Humicola grisea var. thermoidea and Aspergillus fumigatus Fresenius, WORLD J MIC, 16(1), 2000, pp. 81-83
Citations number
10
Categorie Soggetti
Biotecnology & Applied Microbiology
Journal title
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
ISSN journal
09593993 → ACNP
Volume
16
Issue
1
Year of publication
2000
Pages
81 - 83
Database
ISI
SICI code
0959-3993(200002)16:1<81:EOHPOX>2.0.ZU;2-X
Abstract
Xylan-degrading enzyme activities were isolated from crude extracts of soli d-state cultures of Aspergillus fumigatus Fresenius (Xyl I, Xyl III, Xyl IV and Xyl V) and Humicola grisea var. thermoidea (Xyl II) by chromatographic procedures. The pattern of hydrolysis of different xylans and pulps varied from traces of xylose to xylooligomers. The products formed suggest an end o-type enzyme mode of action. Some enzymes showed debranching and transglyc osidase activities.