cellulase

(redirected from Hemicellulase)
Also found in: Dictionary, Encyclopedia.
Related to Hemicellulase: glucoamylase, beta glucanase

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 ?
Up to date, fungal species have been regarded as the most important microorganism for producing cellulase and hemicellulase due to its ability such as extra cellular secretion and sufficient productivity (Maki et al.
5] colony forming units (cfu)/g of lactic acid bacterial per gram of fresh material; addition of enzyme E (a complex of cellulase and hemicellulase, Snow Brand Seed Co.
Cellulase, hemicellulase, molasses, glucose, previously fermented juice and LAB were often used as silage fermentation stimulants to improve silage fermentation quality (Weinberg et al.
Notable substrates and their respective feed enzymes Notable substrates Enzyme Notable Ingredients Protein Protease, peptidase Beans and oilseeds Starch Amylase Grains Lipids Lipase, phospholipase Oilseeds Phytate Phytase Refer to Table 3 Hemicellulose Hemicellulase Pentosans Pentosanase (Xylanase) Rye, wheat (xylose, arabinose) [beta]-Glucan [beta]-Glucanase Barley, oat Mannan Mannanase Soybean, palm, copra Pectin Pectinase Beans Galactan [alpha]-Galactosidase Beans Cellulose(plant Cellulase, cellobiase Forages, brans cell wall) * Combined from Brufau et al.
1993) who investigated the effect of two commercial cellulase/ hemicellulase enzymes derived from Trichoderma reesei on the silage fermentation of ryegrass.
To break down these components cellulase, hemicellulase and ligninase are required (Schiere and Ibrahim, 1989).
The different behavior of fiber fractions in the rumen observed during YM supplementation could be related to the reduction in the activity of hemicellulases in the presence of tannins (Waghorn, 1996).
In filamentous fungi, production of the cellulose- and hemicelluloses-degrading enzyme, cellulases and hemicellulases, are controlled at the transcriptional level by the available carbon source [11].
Among the topics are applying lignocellulosic residues in the production of cellulase and hemicellulases from fungi, the regulation of plant cell wall degrading enzymes formation in filamentous fungi, ligninolytic enzymes from white-rot fungi and application in removing synthetic dyes, genetic tools for producing proteins in fungi, and lipases as imperative fat-degrading enzymes.
Because hydrolytic bacteria produce cellulases and hemicellulases profusely, seed coats could be digested.
1993, "Chemistry of hemicelluloses: relationship between hemicelluloses structure and enzyme required for hydrolysis," Hemicellulose and hemicellulases, Coughlan, M.
Additionally, Endofeed and Amylofeed contain side activities such as alpha-galactosidase, beta-mannanase, cellulases and hemicellulases.