Cellulase production parameters

Table HI. Comparison of Cellulase Production Parameters Obtained Using Various Substance Addition with Parameters Obtained Using Solka Floe Only...

Acidothermus cellulolyticus cellulase activity, 334,335/,341,342/ cellulase production parameters, 341,343r cellulase synthesis regulation, model development, 341-346 concentration vs. rate of cellulase synthesis, 344,345/... 

Parameters to describe a solid-state fermentation process for cellulase production include physical properties such as temperature, pH, humidity and water activity, particle size, pile and real densities, pore size and porosity, etc. chemical components such as medium composition, gas-phase composition, amount and properties of microorganisms, activities of cellulases, etc. and kinetic para-... 

Langmuir-type isotherms, governed by an adsorption constant and a capability No, are widely used to measure the adsorption of cellulase onto cellulose. The parameter No reflects the portion of s ace cellobiosyUattice units accessible for cellulase adsorption, regardless whether or not the adsorption is followed by hydrolysis. In contrast to the static No, is kinetic and measures those productive cellulase adsorptions that can lead to subsequent p-1,4 bond cleavage. 

Potential widespread use of steviosides requires an easy and effective extraction method. Enzymatic extraction of stevioside from Stevia rebaudiana leaves with cellulase, pectinase, and hemicellulase, using various parameters, such as concentration of enzyme, incubation time, and temperature, has been reported [33]. Purification is achieved through adsorption, colunm chromatography, and ion-exchange electrolytic technique for rebaudioside A, rebaudioside C, and dulcoside A [34]. An ultrafiltration (UF) process was reported for recovery of 45 % steviosides from an extract of leaves. Final purification was achieved by two consecutive mixed bed ion-exchange processes. The ion exchangers improved purity of the final product to 90 % [35]. 

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