Different temperature profiles of enzyme secretion by two common strains ofTrichoderma reesei

Merivuori, Hannele; Törnkvist, M.; Sands, Jeffrey A.

doi:10.1007/bf01022426

Cited by 15 publications

(3 citation statements)

References 5 publications

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“…Though this is different from the reported optimal values for incubation temperature including our own previous report on SSF production using wheat bran as substrate [10], it has been reported that T reesei RUT C30 is capable of growth at a wide range of temperatures (17-37°C) and is able to secrete enzymes [19]. Increase in protein secretion was observed for the T reesei strains QM6a and RL-P37 at 37°C [20,21]. Though these results were pertaining to xylanase production by the fungus, it has also been observed by the authors that endoglucanase production by the fungus increased to almost threefold upon cultivation at 37°C.…”

Section: Discussioncontrasting

confidence: 72%

Cellulase Production Under Solid-State Fermentation by Trichoderma reesei RUT C30: Statistical Optimization of Process Parameters

Mekala

Singhania

Sukumaran

et al. 2008

Appl Biochem Biotechnol

119

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Sugar cane bagasse was used as substrate for cellulase production using Trichoderma reesei RUT C30, and the culture parameters were optimized for enhancing cellulase yield. The culture parameters, such as incubation temperature, duration of incubation, and inducer concentration, were optimized for enhancing cellulase yield using a Box-Behnken experimental design. The optimal level of each parameter for maximum cellulase production by the fungus was determined. Predicted results showed that cellulase production was highest (25.6 FPAase units per gram dry substrate) when the inducer concentration was 0.331 ml/gds, and the incubation temperature and time were 33 degrees C and 67 h, respectively. Crude inducer generated by cellulase action was found to be very effective in inducing cellulases. Validation of predicted results was done, and the experimental values correlated well with that of the predicted.

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Section: Discussioncontrasting

confidence: 72%

Cellulase Production Under Solid-State Fermentation by Trichoderma reesei RUT C30: Statistical Optimization of Process Parameters

Mekala

Singhania

Sukumaran

et al. 2008

Appl Biochem Biotechnol

119

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“…Similar results were obtained in the production of xylanases at a high temperature by a thermotolerant Aspergillus FP-470 (CASTRO et al 1997) and in the production of pectinase by Aspergillus sp, where the pH was used as the stressing factor (AGUILAR et al 1991). On the other hand, to other microorganisms, a high environmental temperature not only decreased the growth rates, but it had also a negative effect on the levels of xylanase production, as was shown for Trichoderma reesei (SUH et al 1988, MERIVUORI et al 1990). …”

Section: Discussionsupporting

confidence: 69%

Temperature effect in the production of multiple xylanases by Aspergillus fumigatus

Lenartovicz

Souza

Moreira

et al. 2002

J. Basic Microbiol.

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“…Malik 1980), medium composition (Andreotti et al 1977;Cochet 1991;Gattinger et al 1990;Toledo 1991, 1992), temperature (Merivuori et al 1990;Sub et al 1988) and culture method (Hendy et al 1984) have been thoroughly investigated. The effect of the agitation intensity, however, has only been dealt with in a few papers (Mukataka et al 1988;Mukhopadhyay and Ghose 1977).…”

Section: Introductionmentioning

confidence: 99%

Effect of agitation on growth and enzyme production of Trichoderma reesei in batch fermentation

Lejeune¹,

Baron²

1995

Appl Microbiol Biotechnol

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Growth, enzyme-producing activity and respiratory properties of Trichoderma reesei QM 9414 were examined under various agitation intensities. Two substrates were compared: lactose and Avicel. Pellet formation occurred at all agitation intensities for both substrates. Oxygen dependence at the lower agitation rate varied with the substrate type. With lactose as the carbon source, linear growth was observed, despite a regulation of the dissolved oxygen concentration at 30% saturation. The enzyme production was strongly affected by the agitation. At the higher agitation rates the enzyme production dropped. With Avicel as the carbon source, the production of enzymes surged as soon as the growth was limited by the hydrolysis of Avicel. Growth on Avicel, in the conditions we used, was limited by Avicel hydrolysis. Cubic growth was observed when lactose was the carbon source. A new derivation for a model of the observed cubic growth is proposed and is used to correlate growth, CO2 production and oxygen consumption in a consistent way, impossible with exponential growth models.

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Different temperature profiles of enzyme secretion by two common strains ofTrichoderma reesei

Cited by 15 publications

References 5 publications

Cellulase Production Under Solid-State Fermentation by Trichoderma reesei RUT C30: Statistical Optimization of Process Parameters

Cellulase Production Under Solid-State Fermentation by Trichoderma reesei RUT C30: Statistical Optimization of Process Parameters

Temperature effect in the production of multiple xylanases by Aspergillus fumigatus

Effect of agitation on growth and enzyme production of Trichoderma reesei in batch fermentation

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