cellulase

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Related to Cellobiohydrolase: cellobiose, Endoglucanase

cellulase

 [sel´u-lās]
a concentrate of cellulose-splitting enzymes derived from Aspergillus niger and other sources; used as a digestive aid.

cel·lu·lase

(sel'yū-lās),
Enzyme catalyzing the hydrolysis of 1,4-β-glucoside links in cellulose, lichenin, and other β-d-glucans; found in a variety of microorganisms in soil and in the digestive tracts of herbivores. Used to produce digestive tablets and in the removal of cellulose from foods for special diets.

cellulase

(sĕl′yə-lās′, -lāz′)
n.
Any of several enzymes produced chiefly by fungi, bacteria, and protozoans that catalyze the hydrolysis of cellulose.

cel·lu·lase

(sel'yū-lās)
An enzyme catalyzing the hydrolysis of 1,4-β-glucoside links in cellulose. Used to produce digestive tablets and in the removal of cellulose from foods for special diets.

cellulase

an ENZYME capable of splitting CELLULOSE into glucose, used particularly in the softening or digestion of plant cell walls. Most animals are not capable of producing cellulase and therefore of digesting plant material themselves, relying instead on a variety of gut microorganisms to produce the enzyme and then absorbing the glucose product (see CAECUM). Cellulase is also produced in large quantities in the ABSCISSION layer formed in leaf stalks of higher plants, causing a weakening of cell walls prior to leaf fall.
References in periodicals archive ?
Purification and characterization of a thermostable cellobiohydrolase from Thermotoga petrophila.
Regarding cbh1 and cbh2, the two main cellobiohydrolases, it has been demonstrated that growth of T.
thermophilum, such as a GH55 b-1,3-glucanase (Papageorgiou and Li, 2015), a b-glucosidase (Xu et al., 2011) and a cellobiohydrolase II (Wang et al., 2013).
Harjunpaa et al., "Tryptophan 272: an essential determinant of crystalline cellulose degradation by Trichoderma reesei cellobiohydrolase Cel6A," FEBS Letters, vol.
Cellobiohydrolase. -- Production of cellobiohydrolase was induced in cultures with all carbon sources tested.
The activity of cellobiohydrolase (CBH), an extracellular enzyme, was used as a measure of cellulose-degrading potential.
Cellobiohydrolase activity varied greatly during the whole period of decay and disappeared at the advanced stages of decay.
This activity was significantly higher (P = 0.05) than the cellobiohydrolase activities evaluated in fluids from cultures containing microcystalline cellulose, CMC or xylan (Table 1).
There are three major groups of enzymes in cellulase system on the basis of their action: endo-[beta]-1, 4-glucanase or non-processive cellulases (EG, EC 3.2.1.4 alternatively called [C.sub.x], CMCase and endoglucanase or 1,4-[beta]-D-glucanohydrolase), exo-[beta]-1, 4-glucanase or processive cellulases (avicelase, exoglucanase, cellobiohydrolase, [G.sub.1], CBH, EC 3.2.1.91) and [beta]-1, 4-glucosidase (BG, EC 3.2.1.21)
In this paper, we describe the production of recombinant cellobiohydrolase II (CBHII, EC 3.2.1.91) from T.
Synergistic enhancement of cellobiohydrolase performance on pretreated corn stover by addition of xylanase and esterase activities.
Cellulase is a multi-component enzyme comprising of endoglucanase (EC 3.2.1.74), which attack cellulose in amorphous zone and release oligomers, cellobiohydrolase (EC 3.2.1.91), that liberate cellobiose from reducing and non-reducing ends and b-glucosidase (EC 3.2.1.21), which hydrolyze cellobiose to glucose and play a key role in avoiding cellobiose inhibition and thus enhancing the hydrolysis rates of cellulose into glucose (David, 2008; Mehdi et al., 2010; Sunkyu et al., 2010; Baljit et al., 2014; Veeresh and Wu, 2014).