Production of xylanases by Aspergillus fumigatus and Aspergillus oryzae on xylan-based media

Michael Bailey, Liisa Viikari

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Abstract

Aspergillus fumigatus and A. oryzae were cultivated in laboratory fermenters on media containing xylan as the main carbon source. A. fumigatus produced xylanase on unsubstituted, insoluble beech xylan but growth and enzyme production on soluble xylo-oligosaccharides from the steaming of hardwood were poor due to the presence of inhibitors. An essential prerequisite for good xylanase production by A. fumigatus was decrease in the pH of the cultivation below 3.0 At higher pH values, the production of proteolytic enzymes caused degradation of the xylanase activity already produced. A. oryzae produced rather less xylanase activity than A. fumigatus on the beech xylan medium but, after adaptation, was capable of efficient enzyme production on the steamed substrate.

Original languageEnglish
Pages (from-to)80 - 84
Number of pages5
JournalWorld Journal of Microbiology and Biotechnology
Volume9
Issue number1
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

Fingerprint

Aspergillus oryzae
Xylans
Aspergillus fumigatus
Fagus
Enzymes
Oligosaccharides
Peptide Hydrolases
Carbon
Growth

Cite this

@article{f5378dcc06d548a9bc1560a5e3d35b95,
title = "Production of xylanases by Aspergillus fumigatus and Aspergillus oryzae on xylan-based media",
abstract = "Aspergillus fumigatus and A. oryzae were cultivated in laboratory fermenters on media containing xylan as the main carbon source. A. fumigatus produced xylanase on unsubstituted, insoluble beech xylan but growth and enzyme production on soluble xylo-oligosaccharides from the steaming of hardwood were poor due to the presence of inhibitors. An essential prerequisite for good xylanase production by A. fumigatus was decrease in the pH of the cultivation below 3.0 At higher pH values, the production of proteolytic enzymes caused degradation of the xylanase activity already produced. A. oryzae produced rather less xylanase activity than A. fumigatus on the beech xylan medium but, after adaptation, was capable of efficient enzyme production on the steamed substrate.",
author = "Michael Bailey and Liisa Viikari",
note = "Project code: BIO2022",
year = "1993",
doi = "10.1007/BF00656523",
language = "English",
volume = "9",
pages = "80 -- 84",
journal = "World Journal of Microbiology and Biotechnology",
issn = "0959-3993",
publisher = "Springer",
number = "1",

}

Production of xylanases by Aspergillus fumigatus and Aspergillus oryzae on xylan-based media. / Bailey, Michael; Viikari, Liisa.

In: World Journal of Microbiology and Biotechnology, Vol. 9, No. 1, 1993, p. 80 - 84.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Production of xylanases by Aspergillus fumigatus and Aspergillus oryzae on xylan-based media

AU - Bailey, Michael

AU - Viikari, Liisa

N1 - Project code: BIO2022

PY - 1993

Y1 - 1993

N2 - Aspergillus fumigatus and A. oryzae were cultivated in laboratory fermenters on media containing xylan as the main carbon source. A. fumigatus produced xylanase on unsubstituted, insoluble beech xylan but growth and enzyme production on soluble xylo-oligosaccharides from the steaming of hardwood were poor due to the presence of inhibitors. An essential prerequisite for good xylanase production by A. fumigatus was decrease in the pH of the cultivation below 3.0 At higher pH values, the production of proteolytic enzymes caused degradation of the xylanase activity already produced. A. oryzae produced rather less xylanase activity than A. fumigatus on the beech xylan medium but, after adaptation, was capable of efficient enzyme production on the steamed substrate.

AB - Aspergillus fumigatus and A. oryzae were cultivated in laboratory fermenters on media containing xylan as the main carbon source. A. fumigatus produced xylanase on unsubstituted, insoluble beech xylan but growth and enzyme production on soluble xylo-oligosaccharides from the steaming of hardwood were poor due to the presence of inhibitors. An essential prerequisite for good xylanase production by A. fumigatus was decrease in the pH of the cultivation below 3.0 At higher pH values, the production of proteolytic enzymes caused degradation of the xylanase activity already produced. A. oryzae produced rather less xylanase activity than A. fumigatus on the beech xylan medium but, after adaptation, was capable of efficient enzyme production on the steamed substrate.

U2 - 10.1007/BF00656523

DO - 10.1007/BF00656523

M3 - Article

VL - 9

SP - 80

EP - 84

JO - World Journal of Microbiology and Biotechnology

JF - World Journal of Microbiology and Biotechnology

SN - 0959-3993

IS - 1

ER -