CAS NO.: 9025-57-4
NAME: Xylanase
Synonyms endo-1,4-b-; 1,4-Xylanase;1,4-b-D-Xylan xylanohydrolase; 1,4-b-Xylan endohydrolase; 1,4-b-Xylanase; Avizyme 1310; Belfeed;Belfeed B1100ML; Belfeed B1100MP; Biobrite HTX; Bleachzyme F; Buzyme 2511;Cartazyme HS 10; E.C. 3.2.1.8; Ecopulp TX 10...
EINECS NO.: 232-800-2
*The following content is generated by AI and is for reference only.
Xylanase, scientifically known as 1,4-beta-xylan xylanohydrolase (EC 3.2.1.8), is a specialized hydrolytic enzyme belonging to the glycoside hydrolase family. Its primary function involves the cleavage of beta-1,4-glycosidic bonds within xylan, a major hemicellulose component found in plant cell walls. The molecular formula for the active protein varies significantly depending on the specific microbial source, such as *Trichoderma reesei* or *Aspergillus niger*, as these are large macromolecules composed of amino acid chains rather than simple small molecules with a fixed stoichiometric formula. Consequently, there is no single universal CAS number; instead, commercial preparations carry distinct CAS identifiers corresponding to their specific production strains and purification methods. For instance, various fungal-derived xylanases possess unique registry numbers ranging from approximately 9025-70-1 to other strain-specific entries.
In industrial applications, Xylanase serves as a critical biocatalyst across multiple sectors. In the pulp and paper industry, it is extensively used for enzymatic bleaching to reduce chlorine usage, thereby lowering environmental pollution while improving pulp brightness and viscosity. In animal nutrition, particularly for poultry and swine feed, adding xylanase breaks down non-starch polysaccharides in grains like wheat and barley, enhancing nutrient digestibility and reducing anti-nutritional effects. This leads to improved growth rates and better feed conversion ratios. Furthermore, the food and beverage sector utilizes this enzyme to clarify fruit juices by degrading cloudiness-causing hemicelluloses, resulting in higher yields and clearer products. It also plays a vital role in biofuel production, facilitating the pretreatment of lignocellulosic biomass to release fermentable sugars more efficiently. As a sustainable biological tool, Xylanase contributes significantly to green chemistry initiatives by replacing harsh chemical processes with mild, eco-friendly enzymatic reactions that operate under moderate temperature and pH conditions.