Inny tytuł:

The effect of xylose, galactose and sorbose on the production of selected extracellular enzymes by mutant-strain Trichoderma reesei M-7 during continuous cultivation

Wydawca:

Committee on Biotechnology PAS ; Institute of Bioorganic Chemistry PAS

Abstrakt:

The effect of xylose, galactose and sorbose on the production of cellulases,xylanases, lytic enzymes and P-galactosidase by mutant - strain Trichodermareesei M-7 was analysed. The aforementioned sugars were used separately andin the form of mixtures with lactose as the source of carbon during continuouscultivation of mutant M-7. Feeding medium containing mixtures of xylose andlactose in the ratio of 0.25/0,7596 and 0.5/0.596 induced an increased synthesis ofxylanases. Increased xylanolytic activity (about 12-27%) with the xylose/glucoseratio of 0.25/0.75% and a significantly increased activity (about 2.5 fold) with theratio of both sugars of 0.5/0.5% was observed in comparison with continuouscultivation in the presence of 1% of lactose in the medium. Reduced synthesis ofall cellulolytic (FPU, p-1,4-endoglucanase, p-glucosidase) and xylanolytic enzymes correlated with the increased galactose concentration in the feeding medium. Galactose also repressed the production of p-galactosidase of the mutant-strain M-7. The results obtained after continuous cultivation with sorboseand lactose showed that sorbose was a worse inducer of synthesis of cellulolyticenzymes than lactose

Czasopismo/Seria/cykl:

Biotechnologia, vol.56, 1 (2002)-.

Tom:

56

Zeszyt:

1

Strona pocz.:

195

Strona końc.:

207

Szczegółowy typ zasobu:

Article

Format:

application/pdf

Identyfikator zasobu:

0860-7796 ; oai:rcin.org.pl:138415 ; IChB B-52

Źródło:

Library of Institute of Bioorganic Chemistry PAS

Język:

pol

Język streszczenia:

eng

Zakres czasowy:

1988-2010

Prawa:

Creative Commons Attribution BY-SA 4.0 license

Zasady wykorzystania:

Copyright-protected material. [CC BY-SA 4.0] May be used within the scope specified in Creative Commons Attribution BY-SA 4.0 license, full text available at:

Digitalizacja:

Institute of Bioorganic Chemistry of the Polish Academy of Science

Lokalizacja oryginału:

Institute of Bioorganic Chemistry of the Polish Academy of Science

Dofinansowane ze środków:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.

Dostęp:

Open