Subtitle:

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

Publisher:

Komitet Biotechnologii PAN ; Instytut Chemii Bioorganicznej PAN

Abstract:

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

Relation:

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

Volume:

56

Issue:

1

Start page:

195

End page:

207

Detailed Resource Type:

Artykuł

Format:

application/pdf

Resource Identifier:

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

Source:

Biblioteka Instytutu Chemii Bioorganicznej PAN

Language:

pol

Language of abstract:

eng

Temporal coverage:

1988-2010

Rights:

Licencja Creative Commons Uznanie autorstwa-Na tych samych warunkach 4.0

Terms of use:

-

Digitizing institution:

Instytut Chemii Bioorganicznej Polskiej Akademii Nauk

Original in:

Instytut Chemii Bioorganicznej Polskiej Akademii Nauk

Projects co-financed by:

Program Operacyjny Polska Cyfrowa, lata 2014-2020, Działanie 2.3 : Cyfrowa dostępność i użyteczność sektora publicznego; środki z Europejskiego Funduszu Rozwoju Regionalnego oraz współfinansowania krajowego z budżetu państwa

Access:

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